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qazd/Remove 4 byte characters.php

Created December 17, 2016 05:11
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Removes unicode characters with length larger than 3 bytes from string
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Remove 4 byte characters.php
<?php
$string = '🤔 THINKING 🤔 FACE 🤔';
$string = preg_replace_callback('/./u', function (array $match) {
return strlen($match[0]) > 3 ? null : $match[0];
}, $string);
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