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<?php use Carbon\Carbon; function isThisPalindrome($string){ //remove spaces, punctuation $cleaned = strtolower(preg_replace("/[^A-zA-Z0-9]/", '', $string)); //compare to reverse return $cleaned === strrev($cleaned); } $input = " "; if(isThisPalindrome($input)){ echo "YOUR INPUT IS A PALINDROME"; }else { echo "YOUR INPUT IS NOT A PALINDROME"; } ?>
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