PHP mysql_errno() Function
 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
| 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:
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