user_error
Description
The user_error of Error Handling for PHP generates a user-level error/warning/notice message.
Syntax
user_error ( string $error_msg [, int $error_type = E_USER_NOTICE ] ) : bool
Parameters
error_msg
The designated error message for this error. It's limited to 1024 bytes in length. Any additional characters beyond 1024 bytes will be truncated.
error_type
The designated error type for this error. It only works with the E_USER family of constants, and will default to E_USER_NOTICE.
Return
This function returns FALSE if wrong error_type is specified, TRUE otherwise.
Examples
1 · error_msg
<?
function myfunction($errno, $errstr, $errfile, $errline)
{
switch ($errno)
{
case E_USER_NOTICE:
echo "NOTICE[$errno] $errstr\n";
exit(1);
break;
}
return true;
}
function divide($numerator, $denominator)
{
if ($denominator == 1)
{
$error_msg = "unnecessary to divide by one";
user_error($error_msg);
}
return $numerator / $denominator;
}
set_error_handler("myfunction");
echo divide(10, 1);
?>NOTICE[1024] unnecessary to divide by one
2 · error_type
<?
function myfunction($errno, $errstr, $errfile, $errline)
{
switch ($errno)
{
case E_USER_ERROR:
echo "ERROR[$errno] $errstr\n";
exit(1);
break;
}
return true;
}
function divide($numerator, $denominator)
{
if ($denominator == 0)
{
$error_msg = "cannot divide by zero";
$error_type = E_USER_ERROR;
user_error($error_msg, $error_type);
}
return $numerator / $denominator;
}
set_error_handler("myfunction");
echo divide(10, 0);
?>ERROR[256] cannot divide by zero
