<?php $s = "ab"; $s1 = "cAbfabe"; $rest = $s1; do { $rest = stristr($rest,$s); echo "rest: $rest\n"; $s3 = substr($rest,0,count($s)+1); $s1 = str_replace($s3,"<$s3>",$s1); echo "s3: $s3\n"; $rest = substr($rest,count($s)+1); echo "rest: $rest\n"; echo "=======\n"; } while ($rest != false); echo "s1: $s1\n";
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