What I want to implement is the keyword replacement function. a. img contains keywords and cannot be replaced.
If [Example] is a keyword, the keyword appears in these three situations and cannot be replaced, otherwise it will destroy the html structure
<a href="#" title="这是一个例子而已">这是一个例子而已</a>
<img src="#" alt="我是例子呀">
<a href="#" title="这是一个例子">这是一个例子</a>
<img src="#" alt="我是例子">
<a href="#" title="例子而已">例子而已</a>
<img src="#" alt="例子呀">
被破坏的<img src="#" alt="破坏了<a href="#">例子</a>破坏的可能性有多大?"/>
<?php
function findword($word,$html){
$str_reg = '(<a[^>]+>)(.*)('.$word.')(.*)(<\/a[^>]*>)';
$str_reg .= '|(<img)(.*?)('.$word.')(.*?)(>)' ;
if(preg_match("/$str_reg/",$html)){
return true;
}else{
return false;
}
}
?>
Write a crappy function. It doesn't seem right.
ringa_lee2017-06-21 10:12:32
You first replace the ones that break the rules, such as htmlspecialchars processing, and then replace them again