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  1. <?php
  2.  
  3. $str = 'C000000001204';
  4. $str = preg_replace('/^(\D*)0*/', '$1', $str);
  5.  
  6. echo $str;
Success #stdin #stdout 0.01s 20520KB
comments (?)
stdin 
Standard input is empty
stdout 
C1204
https://ideone.com/QL4JWV
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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