断言在PHP中不起作用。太简单了。我做错了什么?
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?
解决方案
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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