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  1. <?php
  2.  
  3. // A string with numbers
  4. $numbers = "442158755745";
  5. // Find the frequency of occurrence of 5
  6. echo preg_match_all( '/(5)/', $numbers );
  7.  
Success #stdin #stdout 0.01s 82944KB
comments (?)
stdin 
Standard input is empty
stdout 
4
https://ideone.com/60gE6g
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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