stripcslashes()

(PHP 4, PHP 5, PHP 7)

反引用一个使用addcslashes()转义的字符串

说明

stripcslashes(string $str) : string

返回反转义后的字符串。可识别类似 C 语言的n，r，...八进制以及十六进制的描述。

参数

$str

需要反转义的字符串。

返回值

返回反转义后的字符串。

参见

• addcslashes()以 C 语言风格使用反斜线转义字符串中的字符

stripcslashes does not simply skip the C-style escape sequences \a, \b, \f, \n, \r, \t and \v, but converts them to their actual meaning. 
So
<?php
stripcslashes('\n') == "\n"; //true;
$str = "we are escaping \r\n"; //we are escaping
?>

> /*QUOTE
> stripcslashes('He\xallo') == 'He'."\n".'llo'
> stripcslashes('H\xaello') == 'H'.chr(0xAE).'llo'
> */
>
> You Can Use
>
> stripcslashes('H\xa0ello') == 'H'.chr(0xA0).'ello'
Correct. But not what (I think) you were trying to show.
>
> as xa0 = xa = chr(xA)
Not so correct.
Does 9==90? No, because that added zero *after* the number means something.
It's when you add a zero *before* the number does it not affect the value.
I'd like to assume that was a typo, but with the Internet as it is, who knows...
> You Can Use
>
> stripcslashes('H\x0aello') == 'H'.chr(0x0A).'ello'
fix'd

you might want to do a double stripslashes to completely remove 3 consecutive slashes
$stripped = 'this is a string with three\\\ slashes';
$stripped = stripslahses($stripped);
would output:
'this is a string with three\ slashes'
$stripped = 'this is a string with three\\\ slashes';
$stripped = stripslahses(stripslashes($stripped));
would output:
'this is a string with three slashes'