<?php $string = "Course_13_Laravel_Batch_15_Day_22"; $dim = explode("_", $string); $str = ""; foreach($dim as $item){ if(is_numeric( $item)){ $str = $str."-".substr($item, 0, 2); }else{ $str = $str."-".substr($item, 0, 1); } } $str = substr($str,1); echo $str;
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