array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'en', ), 'this' => array ( 0 => 'mysqli.errno.php', 1 => 'mysqli::$errno', 2 => 'Returns the error code for the most recent function call', ), 'up' => array ( 0 => 'class.mysqli.php', 1 => 'mysqli', ), 'prev' => array ( 0 => 'mysqli.dump-debug-info.php', 1 => 'mysqli::dump_debug_info', ), 'next' => array ( 0 => 'mysqli.error.php', 1 => 'mysqli::$error', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/mysqli/mysqli/errno.xml', ), 'history' => array ( ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); contributors($setup); ?>

mysqli::$errno

mysqli_errno

(PHP 5, PHP 7, PHP 8)

mysqli::$errno -- mysqli_errno — Returns the error code for the most recent function call

Description

Object-oriented style

int $mysqli->errno;

Procedural style

mysqli_errno(mysqli $mysql): int

Returns the last error code for the most recent MySQLi function call that can succeed or fail.

Parameters

mysql

Procedural style only: A mysqli object returned by mysqli_connect() or mysqli_init()

Return Values

An error code value for the last call, if it failed. zero means no error occurred.

Examples

Example #1 $mysqli->errno example

Object-oriented style

<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");

/* check connection */
if ($mysqli->connect_errno) {
printf("Connect failed: %s\n", $mysqli->connect_error);
exit();
}

if (!$mysqli->query("SET a=1")) {
printf("Errorcode: %d\n", $mysqli->errno);
}

/* close connection */
$mysqli->close();
?>

Procedural style

<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");

/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}

if (!mysqli_query($link, "SET a=1")) {
printf("Errorcode: %d\n", mysqli_errno($link));
}

/* close connection */
mysqli_close($link);
?>

The above examples will output:

Errorcode: 1193

See Also