voku · October 17, 2018 19:52
diff --git a/remove_first_html_tag.php b/remove_first_html_tag.php
 <?php

 $input_lines = ' <div>da<a>
  lalll
 </a>sda
 </div>';

 $output = preg_replace('/^<(?<element_start>[a-z]+)(?<element_start_addon> [^>]*)?>(?<value>.*?)<\/(?<element_end>\1)>$/usi', '$3', trim($input_lines));


 echo $output;
 /*
 da<a>
  lalll
 </a>sda
 */
	<?php

	$input_lines = ' <div>da<a>
	lalll
	</a>sda
	</div>';

	$output = preg_replace('/^<(?<element_start>[a-z]+)(?<element_start_addon> [^>])?>(?<value>.?)<\/(?<element_end>\1)>$/usi', '$3', trim($input_lines));


	echo $output;
	/*
	da<a>
	lalll
	</a>sda
	*/