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  1. <?php
  2.  
  3. $re = '~^(?:(?=\S*\d)\S+(?:\s+(?=\S*\d)\S+)*\W*)?\K\S*~u'; 
  4. $arr = array("First12word50 Secųond-Word Thirdųword", "First1-2word50 Secųond/Word Thirdųword",
  5.         "First1/2word50 Secųond+Word Thirdųword", "First1/2word50 Secųond1+Word Thirdų-word",
  6.         "First1/2word50 Sec1ųond1+Word Thir11dų-word"); 
  7. foreach ($arr as $s) {
  8. 	preg_match($re, $s, $m);
  9. 	echo '"' . $m[0] . "\"\n";
  10. }
Success #stdin #stdout 0.02s 52432KB
comments (?)
stdin 
Standard input is empty
stdout 
"Secųond-Word"
"Secųond/Word"
"Secųond+Word"
"Thirdų-word"
""
https://ideone.com/EdZ3Cx
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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