Throwable

(PHP 7, PHP 8)

简介

PHP 7 里，Throwable 是能被 throw 语句抛出的最基本的接口（interface），包含了 Error 和 Exception。

Note:
PHP 类无法直接实现（implement） Throwable 接口，而应当去继承 Exception。

接口摘要

Throwable {

/* 方法 */

abstract public getMessage ( ) : string

abstract public getCode ( ) : int

abstract public getFile ( ) : string

abstract public getLine ( ) : int

abstract public getTrace ( ) : array

abstract public getTraceAsString ( ) : string

abstract public getPrevious ( ) : Throwable

abstract public __toString ( ) : string

}

Throwable::getMessage — 获取信息
Throwable::getCode — 获取异常代码
Throwable::getFile — 获取创建对象的文件
Throwable::getLine — 获取初始化对象时候的行号
Throwable::getTrace — 获取堆栈踪迹（Stack Trace）
Throwable::getTraceAsString — 说明
Throwable::getPrevious — 返回先前的 Throwable
Throwable::__toString — 获取 Throwable 对象 string 形式的表达

User Contributed Notes

thisbug at foxmail dot com 13-Jan-2020 02:57


try {

// Code that may throw an Exception or Error.

} catch (Throwable $t) {

// Executed only in PHP 7, will not match in PHP 5.x

} catch (Exception $e) {

// Executed only in PHP 5.x, will not be reached in PHP 7

}



interface MyPackageThrowable extends Throwable {}



class MyPackageException extends Exception implements MyPackageThrowable {}



throw new MyPackageException();

mlocati at gmail dot com 09-Mar-2017 10:59


I wrote a simple script that prints out the Throwable and Exception tree for every PHP version.



You can find this script here:

https://gist.github.com/mlocati/249f07b074a0de339d4d1ca980848e6a



And its output is here:

https://3v4l.org/sDMsv

Throwable

简介

接口摘要

Table of Contents

User Contributed Notes