fork(19) download 
  1. <?php
  2. $str = 'This is the test string with 22/12/2012. 25/10/2013 could anywhere in the string';
  3. $repl = preg_replace('~(\d{2})/(\d{2})/(\d{2,4})~', '$1-$2-$3', $str);
  4. echo "$repl\n";
  5. ?>
Success #stdin #stdout 0.01s 20568KB
comments (?)
stdin 
Standard input is empty
stdout 
This is the test string with 22-12-2012. 25-10-2013 could anywhere in the string
https://ideone.com/7HDNZa
language:
PHP (php 7.3.5)
created:
12 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!