PHP过滤Emoji表情和特殊符号的方法

在PHP中，可以使用正则表达式来过滤Emoji表情和特殊符号。以下是一个函数示例，用于过滤字符串中的Emoji和特殊符号：

function filterEmojiAndSpecialChars($text) {
    // 正则表达式匹配Emoji字符
    $regex = '/[\x{1F600}-\x{1F64F}\x{1F300}-\x{1F5FF}\x{1F680}-\x{1F6FF}\x{1F700}-\x{1F77F}\x{1F780}-\x{1F7FF}\x{1F800}-\x{1F8FF}\x{1F900}-\x{1F9FF}\x{2600}-\x{26FF}\x{2700}-\x{27BF}]/u';
    
    // 正则表达式匹配特殊符号
    $regexSpecialChars = '/[\x{00ae}\x{00a9}\x{203C}\x{2049}\x{2122}\x{2139}\x{2194}-\x{2199}\x{21A9}-\x{21AA}\x{231A}-\x{231B}\x{2328}\x{23CF}\x{23E9}-\x{23F3}\x{23F8}-\x{23FA}\x{24C2}\x{25AA}-\x{25AB}\x{25B6}\x{25C0}\x{25FB}-\x{25FE}\x{2600}-\x{2604}\x{260E}\x{2611}\x{2614}\x{2615}\x{2618}\x{261D}\x{2620}\x{2622}\x{2623}\x{2624}\x{2625}\x{2626}\x{2627}\x{2628}\x{2629}\x{262A}\x{262B}\x{262E}\x{262F}\x{2638}-\x{263A}\x{2648}-\x{2653}\x{2660}\x{2663}\x{2665}\x{2666}\x{2668}\x{267B}\x{267F}\x{2692}-\x{2697}\x{2699}\x{269B}\x{26A0}\x{26A1}\x{26AA}\x{26AB}\x{26B0}\x{26B1}\x{26BD}\x{26BE}\x{26C4}\x{26C5}\x{26C8}\x{26CE}\x{26CF}\x{26D1}\x{26D3}\x{26D4}\x{26E9}\x{26EA}\x{26F0}-\x{26F5}\x{26F7}-\x{26F8}\x{2702}\x{2705}\x{2708}-\x{2709}\x{270C}\x{2712}\x{2714}\x{2716}\x{271D}\x{2721}\x{2728}\x{2744}\x{2747}\x{274C}\x{274E}\x{2753}-\x{2755}\x{2757}\x{2795}-\x{2797}\x{27A1}\x{27B0}\x{27BF}\x{2934}-\x{2935}\x{2B05}-\x{2B07}\x{2B1B}\x{