如何用属性替换标签为空字符串？

Question

我怎能取代从一个字符串：

"this is a <p id="1" /> text <p id="2" /> of a string" 

要：

"this is a <br> text <br> of a string" ? 

不久我想<br>替换所有<p ... />存在的字符串。

Answer 1

更新：（只<p ... />）

echo preg_replace("/<p[^\/]*\/>/i", "<br />", 'this is a <p id="1" /> text <p id="2" /> of a string'); 

Answer 2

您可以沿着使用preg_replace()与str_replace()

$newString = preg_replace("/<p[^>]*?>/", "", $yourString); // will remove all starting tag 
$addNewLine = str_replace("</p>", "<br />", $newString); // will replace closing tag with <br> 

Answer 3

试试：

<?php 
echo preg_replace("<p id=\"d\"/>", "<br>", "this is a <p id=\"1\" /> text <p id=\"2\" /> of a string"); 
?> 

您将获得：

this is a 

text 

of a string