reference/mysqli/mysqli/connect-errno.xml
104bc5c203adbc75f7c71960bb18b2b71c889b45
104bc5c203adbc75f7c71960bb18b2b71c889b45
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<void />
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</methodsynopsis>
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<para>
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Returns the last error code number from the last call to
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<function>mysqli_connect</function>.
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Returns the error code from the last connection attempt.
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</para>
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<note>
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<para>
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Client error message numbers are listed in the MySQL
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<filename>errmsg.h</filename> header file, server error message numbers
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are listed in <filename>mysqld_error.h</filename>. In the MySQL source
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distribution you can find a complete list of error messages and error
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numbers in the file <filename>Docs/mysqld_error.txt</filename>.
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</para>
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</note>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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&no.function.parameters;
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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An error code value for the last call to <function>mysqli_connect</function>, if it failed.
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zero means no error occurred.
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An error code for the last connection attempt, if it failed.
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Zero means no error occurred.
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</para>
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</refsect1>
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<programlisting role="php">
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<![CDATA[
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<?php
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$mysqli = @new mysqli('localhost', 'fake_user', 'my_password', 'my_db');
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mysqli_report(MYSQLI_REPORT_OFF);
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/* @ is used to suppress warnings */
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$mysqli = @new mysqli('localhost', 'fake_user', 'wrong_password', 'does_not_exist');
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if ($mysqli->connect_errno) {
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die('Connect Error: ' . $mysqli->connect_errno);
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/* Use your preferred error logging method here */
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error_log('Connection error: ' . $mysqli->connect_errno);
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}
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?>
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]]>
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</programlisting>
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<para>&style.procedural;</para>
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<programlisting role="php">
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<![CDATA[
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<?php
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$link = @mysqli_connect('localhost', 'fake_user', 'my_password', 'my_db');
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mysqli_report(MYSQLI_REPORT_OFF);
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/* @ is used to suppress warnings */
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$link = @mysqli_connect('localhost', 'fake_user', 'wrong_password', 'does_not_exist');
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if (!$link) {
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die('Connect Error: ' . mysqli_connect_errno());
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/* Use your preferred error logging method here */
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error_log('Connection error: ' . mysqli_connect_errno());
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}
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?>
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]]>
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</programlisting>
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&examples.outputs;
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<screen>
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<![CDATA[
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Connect Error: 1045
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]]>
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</screen>
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</example>
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</refsect1>
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