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run code in 200+ php & hhvm versions
Bugs & Features
<?php $test = 'GB82WEST12345698765432'; $test2 = chunk_split ( $test, 4, ' '); echo $test .' ---> ' .$test2."\n";
Output for 4.3.0 - 7.1.10
GB82WEST12345698765432 ---> GB82 WEST 1234 5698 7654 32