将所有 <a> 标签替换为 PHP 中的某个字符 - replace all <a> tag to some character in php

replace all <a> tag to some character in php

本文关键字：PHP 字符标签替换 | 更新日期: 2023-09-27

我想在php中将<a></a>替换为[]，例如，如果我有：

This is sample test to say you <a href="nowhere/333" id="blabah" > help</a> and you can redirect me to <a href="dddd">answer</a>

我希望它被替换为

This is sample test to say you [help] and you can redirect me to [answer] ，

我如何使用正则表达式在 php 中完成这项工作？

使用Document Object Model并避免使用正则表达式来解析 HTML，不惜一切代价。

echo "[".$dom->getElementsByTagName('a')->item(0)->nodeValue."]";

演示

代码..（对于编辑的问题）

<?php
$html='This is sample test to say you  <a href="nowhere/333" id="blabah" > help</a> and  you can redirect me to <a href="dddd">answer</a>';
$dom = new DOMDocument;
$dom->loadHTML($html);
$srch=array();$rep=array();
foreach($dom->getElementsByTagName('a') as $atag)
{
   $srch[]=trim($atag->nodeValue);
   $rep[]="[".trim($atag->nodeValue)."]";
}
echo str_replace($srch,$rep,strip_tags($html));

OUTPUT :

This is sample test to say you   [help] and  you can redirect me to [answer]

搜索<a.*?>(.*?)<'/a>并替换为['1]

<?php
$html='<a href="nowhere/333" id="blabah" > help</a>';
echo preg_replace('/<a.*?>(.*?)<'/a>/', '['1]', $html);

答案应该去Shankar Damodaran，这是他扩展的答案，以满足OP的要求：

<?php
$html  = 'This is sample test to say you  <a href="nowhere/333" ';
$html .= 'id="blabah" > help</a> and  you can redirect me to <a ';
$html .= 'href="dddd">answer</a> it replaced to';
$dom = new DOMDocument;
$dom->loadHTML($html);
$elements = count($dom->getElementsByTagName('a'));
for ($i = 0; $i <= $elements; $i++) {
    echo "[" . trim($dom->getElementsByTagName('a')->item($i)->nodeValue) . "]";
}
?>

扩展演示