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@ 2014-09-10T10:38:55Z

<?php

$str= "08092014";

print(substr(chunk_split($str,2,"-"),0,4));

?>

Output
Performance
VLD
References
Branches

substr: documentation ( source)
chunk_split: documentation ( source)

preferences:dark modelive preview

40.66 ms | 402 KiB | 5 Q