<?php $input = "aa\" b \x27 c"; $sum = 0; $inputs = explode("\n", $input); for($i = 0; $i<count($inputs); $i++){ for($j = 0; $j<addslashes($inputs[$i]); $j++){ if(addslashes($inputs[$i])[$j]==='\\'){ if(addslashes($inputs[$i])[$j+1]==='\"'){ $sum+=2; continue; } else{ $sum+=4; continue 3; } } else{ $sum++; } } $sum-= count($inputs[$i]); }
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