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  1. <?php
  2.  
  3. $str = 'Hello World!';
  4. echo preg_replace('~\b(\p{L})\p{L}*(\p{P}?)~u', '$1$2', $str) . "\n";
  5.  
  6. $res = [];
  7. preg_replace_callback('~\b(\p{L})\p{L}*(\p{P}?)~u', function($m) use (&$res) {
  8. 		$res[] = $m[1].$m[2];
  9. 		return '';
  10. 	}, $str);
  11. print_r(implode(" ", $res));
Success #stdin #stdout 0.02s 24180KB
comments (?)
stdin 
Standard input is empty
stdout 
H W!
H W!
https://ideone.com/XE0sUg
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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