<?php
preg_match( '/^\[=(\d+)\]/', '[#1234] Subject', $matches);
echo $matches[1]; // 1234
- Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
- Warning: Undefined array key 1 in /in/Hop9O on line 3
- Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
- Notice: Undefined offset: 1 in /in/Hop9O on line 3
- Output for 7.3.32 - 7.3.33
- Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.1 - 5.1.6, 5.2.0 - 5.2.17
- Notice: Undefined offset: 1 in /in/Hop9O on line 3
- Output for 5.1.0
- Fatal error: fatal flex scanner internal error--end of buffer missed in /in/Hop9O on line 3
Process exited with code 255.
preferences:
258.02 ms | 401 KiB | 308 Q