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<?php var_dump(preg_replace('/\[(\S+)\]/e', '', "dskfghksd skdjfh asdkjfh sadjkfh [sdfjhasjld]kj flaksdjf "));
based on UgPSh
Output for 7.0.0 - 7.1.0
Warning: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead in /in/pC9ZJ on line 2 NULL
Output for 4.3.0 - 5.4.45, hhvm-3.10.0 - 3.12.0
string(45) "dskfghksd skdjfh asdkjfh sadjkfh kj flaksdjf "
Output for 5.5.24 - 5.6.28
Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /in/pC9ZJ on line 2 string(45) "dskfghksd skdjfh asdkjfh sadjkfh kj flaksdjf "