fork download
copy 
  1. <?php
  2.  
  3. $s = "Sections: B3; C2; D4";
  4. if (preg_match_all('~(?:\G(?!^);|Sections:)\s*\K[BCDE]\d+~i', $s, $m)) {
  5. 	print_r($m[0]);
  6. }
Success #stdin #stdout 0.01s 23612KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Array
(
    [0] => B3
    [1] => C2
    [2] => D4
)
https://ideone.com/bN5Qig
language:
PHP (php 7.3.5)
created:
7 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!