fork(1) download
copy 
  1. <?php
  2.  
  3. $re = '/(?:\G(?!^)\s*|Stream mapping:\s*)\K([a-zA-Z]+\s+#[0-9]+:[0-9]+).*/';
  4. $str = 'Metadata:
  5.       variant_bitrate : 800000
  6. Stream mapping:
  7.   Stream #0:4 -> #0:0 (copy)
  8.   Stream #0:5 -> #0:1 (copy)
  9. Press [q] to stop, [?] for help';
  10.  
  11. if (preg_match_all($re, $str, $m)) {
  12.  print_r($m[1]);
  13. }
Success #stdin #stdout 0.03s 23908KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Array
(
    [0] => Stream #0:4
    [1] => Stream #0:5
)
https://ideone.com/YwonZU
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!