reference/curl/functions/curl-setopt.xml
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61374bbe228e8e9c55a24aba59a1e2bb2a871148
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@@ -76,7 +76,7 @@
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<row>
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<entry valign="top"><constant>CURLOPT_CERTINFO</constant></entry>
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<entry valign="top">
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-
&true; to output SSL certification information to <literal>STDERR</literal>
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&true; to output SSL certification information to <constant>STDERR</constant>
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on secure transfers.
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</entry>
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<entry valign="top">
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@@ -299,7 +299,7 @@
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_HTTP09_ALLOWED </constant></entry>
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<entry valign="top"><constant>CURLOPT_HTTP09_ALLOWED</constant></entry>
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<entry valign="top">
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Whether to allow HTTP/0.9 responses. Defaults to &false; as of libcurl 7.66.0;
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formerly it defaulted to &true;.
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<entry valign="top">
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&true; to use ASCII mode for FTP transfers.
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For LDAP, it retrieves data in plain text instead of HTML. On
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Windows systems, it will not set <literal>STDOUT</literal> to binary
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Windows systems, it will not set <constant>STDOUT</constant> to binary
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mode.
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</entry>
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<entry valign="top">
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<entry valign="top"><constant>CURLOPT_VERBOSE</constant></entry>
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<entry valign="top">
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&true; to output verbose information. Writes
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output to <literal>STDERR</literal>, or the file specified using
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output to <constant>STDERR</constant>, or the file specified using
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<constant>CURLOPT_STDERR</constant>.
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</entry>
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<entry valign="top">
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<row>
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<entry valign="top"><constant>CURLOPT_EXPECT_100_TIMEOUT_MS</constant></entry>
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<entry valign="top">
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The timeout for Expect: 100-continue responses in milliseconds.
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The timeout for <literal>Expect: 100-continue</literal> responses in milliseconds.
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Defaults to 1000 milliseconds.
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</entry>
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<entry valign="top">
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<entry valign="top"><constant>CURLOPT_FTPSSLAUTH</constant></entry>
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<entry valign="top">
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The FTP authentication method (when is activated):
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<literal>CURLFTPAUTH_SSL</literal> (try SSL first),
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-
<literal>CURLFTPAUTH_TLS</literal> (try TLS first), or
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<literal>CURLFTPAUTH_DEFAULT</literal> (let cURL decide).
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<constant>CURLFTPAUTH_SSL</constant> (try SSL first),
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<constant>CURLFTPAUTH_TLS</constant> (try TLS first), or
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<constant>CURLFTPAUTH_DEFAULT</constant> (let cURL decide).
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</entry>
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<entry valign="top">
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Added in cURL 7.12.2.
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<constant>CURL_HTTP_VERSION_1_0</constant> (forces HTTP/1.0),
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<constant>CURL_HTTP_VERSION_1_1</constant> (forces HTTP/1.1),
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<constant>CURL_HTTP_VERSION_2_0</constant> (attempts HTTP 2),
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<constant>CURL_HTTP_VERSION_2 </constant> (alias of <constant>CURL_HTTP_VERSION_2_0</constant>),
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<constant>CURL_HTTP_VERSION_2</constant> (alias of <constant>CURL_HTTP_VERSION_2_0</constant>),
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<constant>CURL_HTTP_VERSION_2TLS</constant> (attempts HTTP 2 over TLS (HTTPS) only) or
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<constant>CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE</constant> (issues non-TLS HTTP requests using HTTP/2 without HTTP/1.1 Upgrade).
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</entry>
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<constant>CURLAUTH_DIGEST</constant>,
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<constant>CURLAUTH_GSSNEGOTIATE</constant>,
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<constant>CURLAUTH_NTLM</constant>,
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<constant>CURLAUTH_AWS_SIGV4</constant>,
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<constant>CURLAUTH_ANY</constant>, and
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<constant>CURLAUTH_ANYSAFE</constant>.
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</para>
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what methods it supports and pick the best one.
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</para>
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<para>
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<constant>CURLAUTH_ANY</constant> is an alias for
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<literal>CURLAUTH_BASIC | CURLAUTH_DIGEST | CURLAUTH_GSSNEGOTIATE | CURLAUTH_NTLM</literal>.
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<constant>CURLAUTH_ANY</constant> sets all bits. cURL will automatically select
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the one it finds most secure.
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</para>
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<para>
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<constant>CURLAUTH_ANYSAFE</constant> is an alias for
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<literal>CURLAUTH_DIGEST | CURLAUTH_GSSNEGOTIATE | CURLAUTH_NTLM</literal>.
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<constant>CURLAUTH_ANYSAFE</constant> sets all bits except <constant>CURLAUTH_BASIC</constant>.
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cURL will automatically select the one it finds most secure.
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</para>
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</entry>
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<entry valign="top">
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_MAIL_RCPT_ALLLOWFAILS</constant></entry>
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<entry valign="top">
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Allow RCPT TO command to fail for some recipients.
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</entry>
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<entry valign="top">
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When sending data to multiple recipients, by default cURL will abort SMTP conversation if at least one of
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the recipients causes RCPT TO command to return an error. This option tells cURL to ignore errors and
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proceed with the remaining valid recipients. If all recipients trigger RCPT TO failures and this flag is
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set, cURL will abort the SMTP conversation and return the error received from the last RCPT TO command.
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</entry>
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<entry valign="top">
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_MAXAGE_CONN</constant></entry>
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<entry valign="top">
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The maximum idle time allowed for an existing connection to be considered for reuse.
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Default maximum age is set to <literal>118</literal> seconds.
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</entry>
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<entry valign="top">
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_MAXFILESIZE_LARGE</constant></entry>
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<entry valign="top">
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The maximum file size in bytes allowed to download. If the file requested is found larger than this value,
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the transfer will not start and <constant>CURLE_FILESIZE_EXCEEDED</constant> will be returned.
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The file size is not always known prior to download, and for such files this option has no effect even if
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the file transfer ends up being larger than this given limit.
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</entry>
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<entry valign="top">
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_MAXLIFETIME_CONN</constant></entry>
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<entry valign="top">
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The maximum time in seconds, since the creation of the connection, that is allowed for an existing
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connection to have for it to be considered for reuse. If a connection is found in the cache that is older
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than this value, it will instead be closed once any in-progress transfers are complete.
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Default is 0 seconds, meaning the option is disabled and all connections are eligible for reuse.
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</entry>
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<entry valign="top">
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_MAXCONNECTS</constant></entry>
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<entry valign="top">
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The maximum amount of persistent connections that are allowed.
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<constant>CURLPROTO_DICT</constant>,
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<constant>CURLPROTO_FILE</constant>,
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<constant>CURLPROTO_TFTP</constant>,
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<constant>CURLPROTO_MQTT</constant>,
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<constant>CURLPROTO_ALL</constant>
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</para>
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</entry>
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revocation checks for those SSL backends where such behavior is
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present.
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</simpara>
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<simpara>
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<constant>CURLSSLOPT_AUTO_CLIENT_CERT</constant>: automatically
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locate and use a client certificate for authentication, when
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requested by the server. This option is only supported for
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Schannel (the native Windows SSL library).
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</simpara>
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<simpara>
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<constant>CURLSSLOPT_NATIVE_CA</constant>: use the operating system's
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native CA store for certificate verification. Works only on Windows
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when built to use OpenSSL. This option is experimental and behavior is subject to change.
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</simpara>
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<simpara>
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<constant>CURLSSLOPT_NO_PARTIALCHAIN</constant>: do not accept "partial" certificate
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chains, which cURL otherwise does by default. This option is only supported for OpenSSL
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and will fail the certificate verification if the chain ends with
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an intermediate certificate and not with a root certificate.
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</simpara>
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<simpara>
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<constant>CURLSSLOPT_REVOKE_BEST_EFFORT</constant>: ignore certificate revocation checks
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in case of missing or offline distribution points for those SSL backends where
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such behavior is present. This option is only supported for Schannel (the native Windows SSL library).
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If combined with <constant>CURLSSLOPT_NO_REVOKE</constant>, the latter takes precedence.
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</simpara>
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</entry>
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<entry valign="top">
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Added in cURL 7.25.0. Available since PHP 7.0.7.
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<constant>CURL_SSLVERSION_SSLv2</constant> (2),
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<constant>CURL_SSLVERSION_SSLv3</constant> (3),
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<constant>CURL_SSLVERSION_TLSv1_0</constant> (4),
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<constant>CURL_SSLVERSION_TLSv1_1</constant> (5) or
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<constant>CURL_SSLVERSION_TLSv1_2</constant> (6).
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<constant>CURL_SSLVERSION_TLSv1_1</constant> (5),
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<constant>CURL_SSLVERSION_TLSv1_2</constant> (6) or
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<constant>CURL_SSLVERSION_TLSv1_3</constant> (7).
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The maximum TLS version can be set by using one of the <constant>CURL_SSLVERSION_MAX_*</constant>
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constants. It is also possible to OR one of the <constant>CURL_SSLVERSION_*</constant>
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constants with one of the <constant>CURL_SSLVERSION_MAX_*</constant> constants.
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_UPKEEP_INTERVAL_MS</constant></entry>
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<entry valign="top">
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Some protocols have "connection upkeep" mechanisms. These mechanisms usually send some traffic
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on existing connections in order to keep them alive. This option defines the connection upkeep interval.
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Currently, the only protocol with a connection upkeep mechanism is HTTP/2. When the connection upkeep
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interval is exceeded, an HTTP/2 PING frame is sent on the connection.
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Default is <literal>60</literal> seconds.
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</entry>
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<entry valign="top">
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_UPLOAD_BUFFERSIZE</constant></entry>
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<entry valign="top">
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Preferred buffer size in bytes for the cURL upload buffer.
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The upload buffer size by default is 64 kilobytes. The maximum buffer size allowed to be set is 2 megabytes.
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The minimum buffer size allowed to be set is 16 kilobytes.
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</entry>
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<entry valign="top">
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_MAX_RECV_SPEED_LARGE</constant></entry>
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<entry valign="top">
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If a download exceeds this speed (counted in bytes per second) on
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<entry valign="top"><constant>CURLOPT_FTP_FILEMETHOD</constant></entry>
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<entry valign="top">
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Tell curl which method to use to reach a file on a FTP(S) server. Possible values are
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<constant>CURLFTPMETHOD_DEFAULT</constant>,
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<constant>CURLFTPMETHOD_MULTICWD</constant>,
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<constant>CURLFTPMETHOD_NOCWD</constant> and
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<constant>CURLFTPMETHOD_NOCWD</constant>, and
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<constant>CURLFTPMETHOD_SINGLECWD</constant>.
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</entry>
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<entry valign="top">
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_ALTSVC</constant></entry>
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<entry valign="top">
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Pass the filename for cURL to use as the Alt-Svc cache file to read existing cache contents from and
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possibly also write it back to a after a transfer, unless <constant>CURLALTSVC_READONLYFILE</constant>
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is set via <constant>CURLOPT_ALTSVC_CTRL</constant>.
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</entry>
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<entry valign="top">
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_ALTSVC_CTRL</constant></entry>
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<entry valign="top">
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Populate the bitmask with the correct set of features to instruct cURL how to handle Alt-Svc for the
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transfers using this handle. cURL only accepts Alt-Svc headers over HTTPS. It will also only complete
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a request to an alternative origin if that origin is properly hosted over HTTPS.
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Setting any bit will enable the alt-svc engine. The options are:
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<constant>CURLALTSVC_H1</constant>,
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<constant>CURLALTSVC_H2</constant>,
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<constant>CURLALTSVC_H3</constant>, and
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<constant>CURLALTSVC_READONLYFILE</constant>.
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</entry>
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<entry valign="top">
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_AWS_SIGV4</constant></entry>
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<entry valign="top">
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<para>
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Provides AWS V4 signature authentication on HTTP(S) header.
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</para>
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<para>
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This option overrides any other authentication types that have been set in
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<constant>CURLOPT_HTTPAUTH</constant>. This method cannot be combined with other authentication types.
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</para>
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</entry>
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<entry valign="top">
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_CAINFO</constant></entry>
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<entry valign="top">
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The name of a file holding one or more certificates to verify the
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_CAINFO_BLOB</constant></entry>
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<entry valign="top">
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The name of a PEM file holding one or more certificates to verify the
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peer with. This option overrides <constant>CURLOPT_CAINFO</constant>.
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</entry>
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<entry valign="top">
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Available as of PHP 8.2.0 and cURL 7.77.0
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_CAPATH</constant></entry>
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<entry valign="top">
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A directory that holds multiple CA certificates. Use this option
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_HSTS</constant></entry>
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<entry valign="top">
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<para>
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HSTS (HTTP Strict Transport Security) cache file name.
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</para>
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</entry>
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<entry valign="top">
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_HSTS_CTRL</constant></entry>
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<entry valign="top">
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<para>
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Controls HSTS (HTTP Strict Transport Security) behavior. Populate the bitmask with the correct set of
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features to instruct cURL how to handle HSTS for the transfers using this handle.
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<constant>CURLHSTS_ENABLE</constant> enables the in-memory HSTS cache. If the HSTS cache file is defined,
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set <constant>CURLHSTS_READONLYFILE</constant> to make the file read-only.
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</para>
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</entry>
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<entry valign="top">
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_INTERFACE</constant></entry>
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<entry valign="top">
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The name of the outgoing network interface to use. This can be an
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_PROXY_CAINFO_BLOB</constant></entry>
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<entry valign="top">
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The name of a PEM file holding one or more certificates to verify the HTTPS proxy with.
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This option is for connecting to an HTTPS proxy, not an HTTPS server.
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Defaults set to the system path where libcurl's cacert bundle is assumed
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to be stored.
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</entry>
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<entry valign="top">
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Available as of PHP 8.2.0 and libcurl >= cURL 7.77.0.
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_PROXY_CAPATH</constant></entry>
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<entry valign="top">
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The directory holding multiple CA certificates to verify the HTTPS proxy with.
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_SASL_AUTHZID</constant></entry>
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<entry valign="top">
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The authorization identity (authzid) for the transfer. Only applicable to the PLAIN SASL
1980
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authentication mechanism where it is optional. When not specified, only the authentication identity
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(authcid) as specified by the username will be sent to the server, along with the password.
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The server will derive the authzid from the authcid when not provided, which it will then use internally.
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</entry>
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<entry valign="top">
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_SERVICE_NAME</constant></entry>
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<entry valign="top">
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The authentication service name.
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256</constant></entry>
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<entry valign="top">
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Base64-encoded SHA256 hash of the remote host's public key.
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The transfer will fail if the given hash does not match the hash the remote host provides.
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</entry>
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<entry valign="top">
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_SSH_PUBLIC_KEYFILE</constant></entry>
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<entry valign="top">
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The file name for your public key. If not used, libcurl defaults to
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_SSL_EC_CURVES</constant></entry>
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<entry valign="top">
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A colon delimited list of elliptic curve algorithms. For example,
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<literal>X25519:P-521</literal> is a valid list of two elliptic curves.
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This option defines the client's key exchange algorithms in the SSL handshake,
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if the SSL backend cURL is built to use supports it.
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</entry>
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<entry valign="top">
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</entry>
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</row>
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<row>
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<entry valign="top"><constant>CURLOPT_SSLCERT</constant></entry>
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<entry valign="top">
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The name of a file containing a PEM formatted certificate.
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@@ -2121,7 +2330,7 @@
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<entry valign="top"><constant>CURLOPT_FILE</constant></entry>
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<entry valign="top">
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The file that the transfer should be written to. The default
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is <literal>STDOUT</literal> (the browser window).
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is <constant>STDOUT</constant> (the browser window).
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</entry>
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</row>
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<row>
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@@ -2134,7 +2343,7 @@
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2343
<entry valign="top"><constant>CURLOPT_STDERR</constant></entry>
2135
2344
<entry valign="top">
2136
2345
An alternative location to output errors to instead of
2137
-
<literal>STDERR</literal>.
2346
+
<constant>STDERR</constant>.
2138
2347
</entry>
2139
2348
</row>
2140
2349
<row>
...
...
@@ -2156,6 +2365,7 @@
2156
2365
<row>
2157
2366
<entry>Option</entry>
2158
2367
<entry>Set <parameter>value</parameter> to</entry>
2368
+
<entry>Notes</entry>
2159
2369
</row>
2160
2370
</thead>
2161
2371
<tbody>
...
...
@@ -2168,6 +2378,7 @@
2168
2378
be written by this callback. Return the number of
2169
2379
bytes written.
2170
2380
</entry>
2381
+
<entry></entry>
2171
2382
</row>
2172
2383
<row>
2173
2384
<entry valign="top"><constant>CURLOPT_PASSWDFUNCTION</constant></entry>
...
...
@@ -2177,6 +2388,7 @@
2177
2388
string containing a password prompt, and the third is the maximum
2178
2389
password length. Return the string containing the password.
2179
2390
</entry>
2391
+
<entry>Removed as of PHP 7.3.0.</entry>
2180
2392
</row>
2181
2393
<row>
2182
2394
<entry valign="top"><constant>CURLOPT_PROGRESSFUNCTION</constant></entry>
...
...
@@ -2201,6 +2413,7 @@
2201
2413
error.
2202
2414
</para>
2203
2415
</entry>
2416
+
<entry></entry>
2204
2417
</row>
2205
2418
<row>
2206
2419
<entry valign="top"><constant>CURLOPT_READFUNCTION</constant></entry>
...
...
@@ -2214,6 +2427,7 @@
2214
2427
typically by reading it from the passed stream resource. It should
2215
2428
return an empty string to signal <literal>EOF</literal>.
2216
2429
</entry>
2430
+
<entry></entry>
2217
2431
</row>
2218
2432
<row>
2219
2433
<entry valign="top"><constant>CURLOPT_WRITEFUNCTION</constant></entry>
...
...
@@ -2224,6 +2438,18 @@
2224
2438
this callback. It must return the exact number of bytes written
2225
2439
or the transfer will be aborted with an error.
2226
2440
</entry>
2441
+
<entry></entry>
2442
+
</row>
2443
+
<row>
2444
+
<entry valign="top"><constant>CURLOPT_XFERINFOFUNCTION</constant></entry>
2445
+
<entry valign="top">
2446
+
A callback accepting two parameters.
2447
+
Has a similar purpose as <constant>CURLOPT_PROGRESSFUNCTION</constant> but is more modern
2448
+
and the preferred option from cURL.
2449
+
</entry>
2450
+
<entry valign="top">
2451
+
Added in 7.32.0. Available as of PHP 8.2.0.
2452
+
</entry>
2227
2453
</row>
2228
2454
</tbody>
2229
2455
</tgroup>
...
...
@@ -2280,7 +2506,7 @@
2280
2506
<row>
2281
2507
<entry>7.3.15, 7.4.3</entry>
2282
2508
<entry>
2283
-
Introduced <constant>CURLOPT_HTTP09_ALLOWED </constant>.
2509
+
Introduced <constant>CURLOPT_HTTP09_ALLOWED</constant>.
2284
2510
</entry>
2285
2511
</row>
2286
2512
<row>
2287
2513