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PHP mysql_errno() Function


PHP MySQL Reference Complete PHP MySQL Reference

Definition and Usage

The mysql_errno() function returns the error number of the last MySQL operation.

This function returns 0 (zero) if no error has occurred.

Syntax

mysql_errno(connection)

Parameter Description
connection Optional. Specifies the MySQL connection. If not specified, the last connection opened by mysql_connect() or mysql_pconnect() is used.


Example

In this example we will try to log on to a MySQL server with the wrong username and password:

<?php
$con = mysql_connect("localhost","wrong_user","wrong_pwd");
if (!$con)
  {
  die('Could not connect: ' . mysql_errno());
  }
mysql_close($con);
?>

The output of the code above could be:

Could not connect: 1045


PHP MySQL Reference Complete PHP MySQL Reference

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