mysql_errno

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mysql_errno

(PHP3 , PHP4 )

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

Description

int mysql_errno ([int 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>";
?>