reference/hash/functions/hash-update-stream.xml
20dcfbb0dd7150cbe5dfd7903a3001229295c549
20dcfbb0dd7150cbe5dfd7903a3001229295c549
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<methodsynopsis>
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<type>int</type><methodname>hash_update_stream</methodname>
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<methodparam><type>HashContext</type><parameter>context</parameter></methodparam>
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<methodparam><type>resource</type><parameter>handle</parameter></methodparam>
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<methodparam><type>resource</type><parameter>stream</parameter></methodparam>
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<methodparam choice="opt"><type>int</type><parameter>length</parameter><initializer>-1</initializer></methodparam>
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</methodsynopsis>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>handle</parameter></term>
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<term><parameter>stream</parameter></term>
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<listitem>
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<para>
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Open file handle as returned by any stream creation function.
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<term><parameter>length</parameter></term>
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<listitem>
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<para>
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Maximum number of characters to copy from <parameter>handle</parameter>
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Maximum number of characters to copy from <parameter>stream</parameter>
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into the hashing context.
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</para>
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</listitem>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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Actual number of bytes added to the hashing context from <parameter>handle</parameter>.
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Actual number of bytes added to the hashing context from <parameter>stream</parameter>.
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</para>
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</refsect1>
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<![CDATA[
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<?php
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$fp = tmpfile();
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fwrite($fp, 'The quick brown fox jumped over the lazy dog.');
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fwrite($fp, 'jumped over the lazy dog.');
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rewind($fp);
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$ctx = hash_init('md5');
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$ctx = hash_init('sha256');
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hash_update($ctx, 'The quick brown fox ');
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hash_update_stream($ctx, $fp);
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echo hash_final($ctx);
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?>
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&example.outputs;
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<screen>
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<![CDATA[
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5c6ffbdd40d9556b73a21e63c3e0e904
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68b1282b91de2c054c36629cb8dd447f12f096d3e3c587978dc2248444633483
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]]>
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</screen>
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</example>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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