mysql_errno

(PHP 3 <= 3.0.18, PHP 4 >= 4.0.0)

mysql_errno --  Returns the numerical value of the error message from previous MySQL operation

Description

int mysql_errno (resource [link_identifier])

Returns the error number from the last MySQL function, or 0 (zero) if no error occurred.

Errors coming back from the MySQL database backend no longer issue warnings. Instead, use mysql_errno() to retrieve the error code. Note that this function only returns the error code from the most recently executed MySQL function (not including mysql_error() and mysql_errno()), so if you want to use it, make sure you check the value before calling another mySQL function.

<?php
mysql_connect("marliesle");
echo mysql_errno().": ".mysql_error()."<BR>";
mysql_select_db("nonexistentdb");
echo mysql_errno().": ".mysql_error()."<BR>";
$conn = mysql_query("SELECT * FROM nonexistenttable");
echo mysql_errno().": ".mysql_error()."<BR>";
?>

See also: mysql_error()