<?php $data = 'Bob’s Burgers'; // 1. Convert to plain text $data = mb_convert_encoding($data, 'UTF-8', 'HTML-ENTITIES'); // 2. Upper case $data = mb_strtoupper($data, 'UTF-8'); // 3. Encode back to 7-bit ASCII $data = mb_convert_encoding($data, 'HTML-ENTITIES', 'UTF-8'); var_dump($data);
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