3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = " 12| 150 | test one| 33235 13| 151| test two |33236 "; $pattern = '/(?:\s\|\s)|(?:\s\|)|(?:\|\s)/'; echo preg_replace($pattern, '|', $string);
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
12|150|test one|33235 13|151|test two|33236

preferences:
134.79 ms | 402 KiB | 121 Q