PHP5中文手册·Generates a user-level error/warning/notice message -- 追寻梦想＞编程乐园＞PHP 编程

说明

bool trigger_error ( string $error_msg [, int $error_type ] )

Used to trigger a user error condition, it can be used by in conjunction with the built-in error handler, or with a user defined function that has been set as the new error handler (set_error_handler()).

This function is useful when you need to generate a particular response to an exception at runtime.

参数

error_msg: The designated error message for this error. It's limited to 1024 characters in length. Any additional characters beyond 1024 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.

返回值

This function returns FALSE if wrong error_type is specified, TRUE otherwise.

范例

Example#1 trigger_error() example

See set_error_handler() for a more extensive example.


<?php
if (assert($divisor == 0)) {
    trigger_error("Cannot divide by zero", E_USER_ERROR);
}
?>


	PHP5中文手册 set_exception_handler user_error Errors and Logging PHP Manual trigger_error (PHP 4 >= 4.0.1, PHP 5) trigger_error — Generates a user-level error/warning/notice message 说明 bool trigger_error ( string `$error_msg` [, int `$error_type` ] ) Used to trigger a user error condition, it can be used by in conjunction with the built-in error handler, or with a user defined function that has been set as the new error handler (set_error_handler()). This function is useful when you need to generate a particular response to an exception at runtime. 参数 `error_msg` The designated error message for this error. It's limited to 1024 characters in length. Any additional characters beyond 1024 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`. 返回值 This function returns `FALSE` if wrong `error_type` is specified, `TRUE` otherwise. 范例 Example#1 trigger_error() example See set_error_handler() for a more extensive example. `<?php if (assert($divisor == 0)) { trigger_error("Cannot divide by zero", E_USER_ERROR); } ?>` 参见 error_reporting() set_error_handler() restore_error_handler() The error level constants set_exception_handler user_error Errors and Logging PHP Manual

trigger_error

说明

参数

返回值

范例

参见