php emoji unicode multi-byte

remove-emoji.php

<?php
function removeEmoji($text)
{
    $cleanText = "";

    // Enclosed characters  24C2 - 1F251
    $regexEnclosed = '/[\x{24C2}-\x{1F251}]/u';
    $cleanText = preg_replace($regexEnclosed, '', $text);

    // Dingbats  2702 - 27B0
    $regexDingbats = '/[\x{2702}-\x{27B0}]/u';
    $cleanText = preg_replace($regexDingbats, '', $cleanText);

    // Match Miscellaneous Symbols and Pictographs
    $regexSymbols = '/[\x{1F300}-\x{1F5FF}]/u';
    $cleanText = preg_replace($regexSymbols, '', $cleanText);

    // Match Emoticons
    $regexEmoticons = '/[\x{1F600}-\x{1F64F}]/u';
    $cleanText = preg_replace($regexEmoticons, '', $cleanText);

    // Match Transport And Map Symbols
    $regexTransport = '/[\x{1F680}-\x{1F6FF}]/u';
    $cleanText = preg_replace($regexTransport, '', $cleanText);

    return $cleanText;
}