(PHP3 , PHP4 )

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


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.

echo mysql_errno().": ".mysql_error()."<BR>";
echo mysql_errno().": ".mysql_error()."<BR>";
$conn = mysql_query("SELECT * FROM nonexistenttable");
echo mysql_errno().": ".mysql_error()."<BR>";

See also: mysql_error()