断言在PHP中不起作用。太简单了。我做错了什么？ [英] Assert is not working in PHP. So simple. What am I doing wrong?

问题描述

这就像Assert甚至没有被调用一样。我糊涂了。

版本

php -v

PHP 7.0.11-1+deb.sury.org~xenial+1 (cli) ( NTS )
Copyright (c) 1997-2016 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2016 Zend Technologies
    with Zend OPcache v7.0.11-1+deb.sury.org~xenial+1, Copyright (c) 1999-2016, by Zend Technologies

脚本：

x.php

<?php
    print ("Hello
");

    assert_options(ASSERT_ACTIVE,true);
    assert_options(ASSERT_BAIL,true);

    assert(false);
    assert(true);

    print ("Bye
");

当我运行它时

php x.php

Hello
Bye

我本以为程序会因异常而终止。我疯了吗？

推荐答案

看起来断言在7.0中是开箱即用的。在我的php.ini文件中，zend.assertions被设置为-1，这意味着它们被忽略。我已将设置更改为%1。

[Assertion]
; Switch whether to compile assertions at all (to have no overhead at run-time)
; -1: Do not compile at all
;  0: Jump over assertion at run-time
;  1: Execute assertions
; Changing from or to a negative value is only possible in php.ini! (For turning assertions on and off at run-time, see assert.active, when zend.assertions = 1)
; Default Value: 1
; Development Value: 1
; Production Value: -1
; http://php.net/zend.assertions
zend.assertions = 1

脚本现在可以正常工作了。

php x.php

Hello
PHP Warning:  assert(): assert(false) failed in /home/ubuntu/code/x/test/x.php on line 8

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