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  1. <?php
  2.  
  3. $remove_from_beginning = array( 'www.', 'wap.', 'admin.' );
  4. $final = "";
  5.  
  6. foreach( $remove_from_beginning as $start )
  7. {
  8. 	$final = $final . "" . substr_replace($start, '', -1) . "" . "\.|";
  9. }
  10.  
  11. $final = substr_replace($final, '', -1);
  12.  
  13. echo preg_replace("/" . "" . "(?:" . "" . $final . "" . ")" . "" . "(.*)" . "" . "/", "$1", "www.wap.com");
Success #stdin #stdout 0.02s 52472KB
comments (?)
stdin 
Standard input is empty
stdout 
wap.com
https://ideone.com/1dZTbM
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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