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run code in 150+ php & hhvm versions
Bugs & Features
<?php $string = "AARON'S INC                  "; $sanitize = preg_replace('/*\b\s/', '', $string); var_dump($string); var_dump($sanitize);
based on uSCUm
Output for 4.3.11 - 5.6.28, 7.0.0 - 7.1.0
Warning: preg_replace(): Compilation failed: nothing to repeat at offset 0 in /in/PhaWX on line 4 string(47) "AARON'S INC                  " NULL
Output for 4.3.0 - 4.3.10, hhvm-3.12.0
Warning: Compilation failed: nothing to repeat at offset 0 in /in/PhaWX on line 4 string(47) "AARON'S INC                  " NULL
Output for hhvm-3.10.0

Process exited with code 153.