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  1. <?php
  2. function first4digit($string){
  3.     $nums=explode(", ",$string);
  4.     foreach($nums as $num){
  5.        if(strlen($num)==4){
  6.            return $num;
  7.        }
  8.     }
  9. }
  10.  
  11. echo first4digit("1, 12, 123, 1234, 12345");
  12. // your code goes here
Success #stdin #stdout 0s 20520KB
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Standard input is empty
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1234
https://ideone.com/Rhv9ku
language:
PHP (php 7.3.5)
created:
11 years ago
visibility:
public

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