<?php $encodings = mb_list_encodings(); var_dump(count($encodings)); $results = []; foreach ($encodings as $encoding) { foreach (["\r", "\r\n"] as $string) { if (strlen($string) !== mb_strlen($string, $encoding)) { $results[] = [ 'encoding' => $encoding, 'char' => "\r" === $string ? '\r' : '\r\n', 'strlen' => strlen($string), 'mb_strlen' => mb_strlen($string, $encoding), ]; } } } print_r($results);
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