PhP 在两个不同的字符串之间查找（并替换）字符串
[英]PhP Find (and replace) string between two different strings
问题描述
I have a string, that look like this "<html>" .
我有一个字符串，看起来像这样"<html>" 。 Now what I want to do, is get all text between the "<" and the ">" , and this should apply to any text, so that if i did "<hello>" , or "<p>" that would also work.现在我想要做的是获取"<"和">"之间的所有文本，这应该适用于任何文本，这样如果我做了"<hello>"或"<p>"也将工作。 Then I want to replace this string with a string that contains the string between the tags.然后我想用包含标签之间的字符串的字符串替换这个字符串。 For example例如
In:在：
<[STRING]>
Out:出：
<this is [STRING]>
Where [STRING] is the string between the tags.其中 [STRING] 是标签之间的字符串。
3 个解决方案
解决方案1
2 2016-11-23 19:35:28
使用捕获组匹配<之后不是> ，并将其替换为替换字符串。
preg_replace('/<([^>]*)>/, '<this is $1>/, $string);
解决方案2
1 2016-11-23 20:01:05
here is a solution to test on the pattern exists and then capture it to finally modify it ...这是一个测试模式存在的解决方案，然后捕获它以最终修改它......
<?php
$str = '<[STRING]>';
$pattern = '#<(\[.*\])>#';
if(preg_match($pattern, $str, $matches)):
var_dump($matches);
$str = preg_replace($pattern, '<this is '.$matches[1].'>', $str);
endif;
echo $str;
?>
echo $str;回声 $str; You can test here: http://ideone.com/uVqV0u你可以在这里测试： http : //ideone.com/uVqV0u
解决方案3
0 2016-11-23 19:47:48
I don't know if this can be usefull to you.我不知道这对你是否有用。 You can use a regular expression that is the best way .您可以使用正则表达式，这是最好的方法。 But you can also consider a little function that remove first < and last > char from your string.但是您也可以考虑使用一个小函数从字符串中删除第一个<和最后一个>字符。
This is my solution:这是我的解决方案：
<?php
/*Vars to test*/
$var1="<HTML>";
$var2="<P>";
$var3="<ALL YOU WANT>";
/*function*/
function replace($string_tag) {
$newString="";
for ($i=1; $i<(strlen($string_tag)-1); $i++){
$newString.=$string_tag[$i];
}
return $newString;
}
/*Output*/
echo (replace($var1));
echo "\r\n";
echo (replace($var2));
echo "\r\n";
echo (replace($var3));
?>
Output give me:输出给我：
HTML HTML
P磷
ALL YOU WANT随心所欲
Tested on https://ideone.com/2RnbnY在https://ideone.com/2RnbnY 上测试
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