PHP preg_replace \

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时间:2020-08-25 05:36:23  来源:igfitidea点击:

PHP preg_replace \

phppreg-replace

提问by Oliver Bayes-Shelton

Really simple question: how can I preg_replacethe backslash character?

非常简单的问题:我如何才能preg_replace使用反斜杠字符?

回答by Johnco

Yes, but you need to escape it. When using it in the regexp use \\to use it in the replacement, use \\\\(that will turn into \\that will be interpreted as a single backslash).

是的,但你需要逃避它。当在正则表达式\\中使用它时,在替换中使用它时,使用\\\\(这将变成\\将被解释为单个反斜杠的)。

回答by Pekka

You need to escape the backslash: \\

您需要转义反斜杠: \\

From the manual on preg_replace:

手册上preg_replace

To use backslash in replacement, it must be doubled ("\\\\"PHP string).

要使用反斜杠替换,它必须加倍("\\\\"PHP 字符串)。

Alternatively, use preg_quoteto prepare a string for a preg_*operation.

或者,preg_quote用于为preg_*操作准备字符串。

回答by adesst

You could try

你可以试试

$a = "\\";
$a = preg_replace('/\\/','/',$a);

Output:

输出:

'//'

回答by Marek Karbarz

Escape \with \: \\

逃生\\\\

preg_replace('/\/', 'REMOVED BACKSLASH', 'sometest\othertest');

回答by Sarfraz

Use it twice eg \\

使用它两次,例如 \\

回答by Sakthikanth

This code works for me

这段代码对我有用

  $text = "replace \ backslash";
  $rep = "";
  $replace_text = preg_replace( '/\\{1}/',$rep,$text);
  echo $replace_text;

Output :

输出 :

replace backslash

替换反斜杠