php - 如何只转义某些字符

Question

php 函数 preg_quote转义这些字符 . \ + * ? [ ^ ] $ ( ) { } = ! < > | : -

请问我可以用什么来转义这些字符:+ - && || ! ( ) { } [ ] ^ " ~ * ? : /

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已编辑(按“待定”要求):

我正在实现 Solr搜索并显示:

Solr gives the following characters special meaning when they appear in a query:
+ - && || ! ( ) { } [ ] ^ " ~ * ? : /

To make Solr interpret any of these characters literally, rather as a special character, precede the character with a backslash character .

Answer 1

这可能对您有帮助:

<?php
$subject = "+ - && || ! ( ) { } [ ] ^ \" ~ * ? : /";
$result = preg_replace('%([+\-&|!(){}[\]^"~*?:/]+)%', '\\\\$1', $subject);
echo $result;
?>

http://ideone.com/EYV1ID