php-doc-en/reference/mysqli/functions/mysqli-errno.xml

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<?xml version="1.0" encoding="iso-8859-1"?>
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<refentry id="function.mysqli-errno">
<refnamediv>
<refname>mysqli_errno</refname>
<refpurpose>Returns the error code for the most recent function call</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>int</type><methodname>mysqli_errno</methodname>
<methodparam><type>resource</type><parameter>link</parameter></methodparam>
</methodsynopsis>
<para>
The <function>mysqli_errno</function> function will return the last error code for
the most recent MySQLi function call that can succeed or fail with respect to the
database link defined by the <parameter>link</parameter> parameter. If no errors
have occured, this function will return zero.
</para>
<note>
<para>
A complete list of the error codes and their meanings can be found in the constants
section of the MySQLi documentation
</para>
</note>
</refsect1>
</refentry>
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