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PHP user_error() Function Usage and Example

user_error() function

Syntax

bool user_error ( string $error_msg [, int $error_type] );

Definition and usage

This function is an alias of trigger_error(), used to trigger user error conditions, and can be used with built-in error handlers or user-defined functions set as new error handlers (set_error_handler()).

Parameter

Serial number	Parameters and descriptions
1	error_msg (required) It specifies the error message. Limited to1024characters.
2	error_types (optional) It specifies the error type of this error message. Possible error types- E_USER_ERROR - User-generated fatal runtime errors. Unrecoverable errors. The script execution is paused. E_USER_WARNING - User-generated non-fatal runtime warnings. The script execution will not stop. E_USER_NOTICE - Default. User-generated runtime notifications. The script found content that may be an error, but it may also occur during normal script execution.

Return value

If an incorrect error_type is specified, this function returns FALSE; otherwise, it returns TRUE.

Online Example

The following is the usage of this function-

Example

<?php
　　　　if ($test<10") {
　　　　user_error("The number cannot be less than10");
}
?>

Output result:

The number cannot be less than10

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