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php单引号中字符串的转义（""）

WBOY
Release： 2016-06-23 13:51:22
Original
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我们知道php中的单引号不会对其中的字符串变量进行替换处理，只有双引号才能进行替换处理。那么单引号会对转义处理吗？

<?php function dump($str){		echo "<pre class="brush:php;toolbar:false">";		print_r($str);		echo "
Copy after login
"; } $str = 'aaa\nb'; $str2 = 'aaa\\nb'; $str3 = 'aaa\'b'; dump ($str); dump ($str2); dump ($str3);
结果为： 

aaa\nb
Copy after login
Copy after login
aaa\nb
Copy after login
Copy after login
aaa'b
Copy after login

从上面可以看出，php的单引号只对反斜线和单引号进行转义，其他的不会进行转义。

Related labels：
php apostrophe string escape
source：php.cn
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