(PHP 3, PHP 4 )
mysql_errno -- Returns the numerical value of the error message from previous MySQL operationReturns 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()