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I have content that is being output via Wordpress, and this article is and lt; P & gt; Wrap the tag around content around me & lt; P & gt; & Lt; / P & gt; Need to remove content in . How can I do this?

For example, the output is:

  & lt; P & gt; Posted by Bob & lt; / P & gt; & Lt; P & gt; This is the content here & lt; / P & gt; & Lt; P & gt; This is the second paragraph & lt; / P & gt;   
 I line  & lt; P & gt; Posted by Bob & lt; / P & gt;  and want to leave the rest. In general,.  
 In this case, a regex solution can work fine though   
 
   $ str = preg_replace ('~ & lt; p & gt; *? & Lt; / p & gt; ~ s,' ', $ str, 1);   
 Important things are  
 
 which ?  creates . *  ungreedy (so that it stops as soon as possible and very last  & lt; / p & gt;   
 Modifier  s  .  is capable of matching new lines  
 range  1  which removes only the first match   
 If you want only to remove the contents of the tag (if you want to keep an empty paragraph), just click  
  Use.  
 However, as It is still not the right solution. Tags or comments about tags, or   p>  tags or attributes or Invalid HTML also comes with PHP. If you can use third party libraries, it is quite convenient to use and makes this problem almost trivial:  
  "Simple_html_dom.php" is required; $ html = new simple_html_dom ($ input); $ html- & gt; load ($ input); $ Html- & gt; search ('P', 0) - & gt; External text = ""; $ Output = $ html-> Save ();   
 Even if you want to empty the tag but want to keep it, then  external text  with  internal text  Change .