preg_replace在某物之间而不移除某物 - preg_replace between something without removing the something

preg_replace between something without removing the something

本文关键字：之间 preg replace | 更新日期: 2023-09-27

我要做的是：

function replace_between_something($betweenWhat,$replace_thing,$target){
return preg_replace("/".$betweenWhat."(.*?)".$betweenWhat."/",$replace_thing,$target);
}
$string="Hi, *my* name is 'Soul' and she is 'Maggie'. ";
$replace=replace_between_something("'*","your",$string);
$replace=replace_between_something("'","noname",$replace);
echo $replace;

预期输出为：

Hi, *your* name is 'noname' and she is 'noname'.

但是，实际输出（与预期不同）：

Hi, your name is noname and she is noname.

如何保存符号？？

有人能帮我吗？？？

对不起，我只是编辑我的问题，以显示我想做的实际事情。

您可以在替换字符串中再次包含引号：

$string="Hi, my name is 'Soul' and she is 'Maggie'. ";
$replace=preg_replace("/'(.*?)'/","'noname'",$string);
echo $replace;

您只需要使用preg_quote来转义等字符

function replace_between_something($betweenWhat, $replace_thing, $target) {
    return preg_replace("/" . preg_quote($betweenWhat) . "(.*?)" . preg_quote($betweenWhat) . "/", $betweenWhat.$replace_thing.$betweenWhat, $target);
}
$string = "Hi, *my* name is 'Soul' and she is 'Maggie'. ";
$replace = replace_between_something("*", "your", $string) . "'n";
$replace = replace_between_something("'", "noname", $replace);
echo $replace;

特殊的正则表达式字符有：. ' + * ? [ ^ ] $ ( ) { } = ! < > | : -

分隔符如果指定了可选的分隔符，也将对其进行转义。这对于转义PCRE函数所需的分隔符非常有用。/是最常用的分隔符。

所以你不需要---> '*，作为preg_quote转义的反斜杠本身就是转义那些字符

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