How to remove content within tags in php

php method to remove content in tags: 1. Use the "strip_html_tags($tags,$str);" method to remove; 2. Use the "strip_html_tags($tags,$str,$content);" method Remove.

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

How to remove the tag inside php Content?

PHP method to delete html tags and the content within the tag

• Delete the tag and the content of the tag

Usage method: strip_html_tags($tags,$str);
$tags: Tags that need to be deleted (array format)
$str: String that needs to be processed;

<meta charset="UTF-8">
<?php
$str=&#39;<p><p>这里是p标签</p><img src="" alt="这里是img标签"><a href="">这里是a标签</a><br></p>';

function strip_html_tags($tags,$str){ 
    $html=array();
    foreach ($tags as $tag) {
        $html[]='/<&#39;.$tag.&#39;.*?>[\s|\S]*?<\/&#39;.$tag.&#39;>/';
        $html[]='/<&#39;.$tag.&#39;.*?>/';
    }
    $data=preg_replace($html,'',$str);
    return $data;
} 
echo strip_html_tags(array('a','img'),$str);
//输出<p><p>这里是p标签</p><br></p>
?>

Effect picture:

• Ultimate function, delete the specified tag; delete or retain the content in the tag;
  Usage: strip_html_tags($tags,$str ,$content);
  $tags: tags that need to be deleted (array format)
  $str: string that needs to be processed;
  $ontent: whether to delete the content in the tag 0 retain the content 1 do not retain the content

<meta charset="UTF-8">
<?php
$str=&#39;<p><p>这里是p标签</p><img src="" alt="这里是img标签"><a href="">这里是a标签</a><br></p>&#39;;

/**
 * 删除指定的标签和内容
 * @param array  $tags 需要删除的标签数组
 * @param string $str 数据源
 * @param boole  $content 是否删除标签内的内容 默认为false保留内容  true不保留内容
 * @return string
 */
function strip_html_tags($tags,$str,$content=false){
    $html=array();
    foreach ($tags as $tag) {
        if($content){
            $html[]=&#39;/(<&#39;.$tag.&#39;.*?>[\s|\S]*?<\/&#39;.$tag.&#39;>)/&#39;;
        }else{
            $html[]="/(<(?:\/".$tag."|".$tag.")[^>]*>)/i";
        }
    }
    $data=preg_replace($html, &#39;&#39;, $str);
    return $data;
}
echo strip_html_tags(array(&#39;a&#39;),$str,1);
//输出<p><p>这里是p标签</p><img src="" alt="这里是img标签"><br></p>;
?>

Rendering:

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