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  1. <?php
  2. echo 'php_ver: ' . phpversion() . "\n";
  3.  
  4. $pattern = '/^\^\s([a-z])\1+$/m';
  5. $subject = "^ aaa\n^ bbb\n^ ccc";
  6.  
  7. preg_match_all($pattern, $subject, $m, PREG_SET_ORDER);
  8.  
  9. foreach ($m as $v) {
  10.     echo "{$v[0]}\n";
  11. }
  12. ?>
Success #stdin #stdout 0.01s 20568KB
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Standard input is empty
stdout
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php_ver: 5.4.4-12
^ aaa
^ bbb
^ ccc
https://ideone.com/5SOBuJ
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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