[PHP 4, PHP 5]
mysql_error — Returns the text of the error message from previous MySQL operation
Description
mysql_error[resource $link_identifier = NULL]: string
Parameters
link_identifier
The MySQL connection. If the link identifier is not specified, the last link opened by mysql_connect[] is assumed. If no such link is found, it will try to create one as if mysql_connect[] had been called with no arguments. If no connection is found or established, an
E_WARNING level error is generated.
Return Values
Returns the error text from the last MySQL function, or '' [empty string] if no error occurred.
Examples
Example #1 mysql_error[] example
The above example will output something similar to:
1049: Unknown database 'nonexistentdb' 1146: Table 'kossu.nonexistenttable' doesn't exist
See Also
- mysql_errno[] - Returns the numerical value of the error message from previous MySQL operation
- » MySQL error codes
aleczapka _at] gmx dot net ¶
18 years ago
If you want to display errors like "Access denied...", when mysql_error[] returns "" and mysql_errno[] returns 0, use $php_errormsg. This Warning will be stored there. You need to have track_errors set to true in your php.ini.
Note. There is a bug in either documentation about error_reporting[] or in mysql_error[] function cause manual for mysql_error[], says: "Errors coming back from the MySQL database backend no longer issue warnings." Which is not true.
Florian Sidler ¶
12 years ago
Be aware that if you are using multiple MySQL connections you MUST support the link identifier to the mysql_error[] function. Otherwise your error message will be blank.
Just spent a good 30 minutes trying to figure out why i didn't see my SQL errors.
Pendragon Castle ¶
13 years ago
Using a manipulation of josh >'s function, I created the following. It's purpose is to use the DB to store errors. It handles both original query, as well as the error log. Included Larry Ullman's escape_data[] as well since I use it in q[].