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PHP Quiz PHP CertificatePHP mysql_error() Function
Complete PHP MySQL Reference
Definition and Usage
The mysql_error() function returns the error description of the last MySQL operation.
This function returns an empty string ("") if no error occurs.
Syntax
mysql_error(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(mysql_error());
}
mysql_close($con);
?>
$con = mysql_connect("localhost","wrong_user","wrong_pwd");
if (!$con)
{
die(mysql_error());
}
mysql_close($con);
?>
The output of the code above could be:
Access denied for user 'wrong_user'@'localhost'
(using password: YES)
(using password: YES)
Complete PHP MySQL Reference
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