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  1. <?php
  2.  
  3. // your code goes here
  4.  
  5. $str = 'Hello 48 and good3 58 see you';
  6. $index = -1;
  7. if(preg_match("#\d\D+$#", $str, $matches, PREG_OFFSET_CAPTURE)) {
  8.     $index = $matches[0][1];
  9. }
  10.  
  11. echo $index;
  12.  
  13.  
Success #stdin #stdout 0.02s 24192KB
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https://ideone.com/ORiKZS
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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