PHP过滤特殊字符号和表情符号

PHP中特殊符号会影响页面布局以及导出表格乱码，此方法用以过滤特殊字符号和表情符号，

/**
 * 替换微信名中的表情符号
 *  text string 要替换的文字
 * replaceTo string 替换成的文字
 */
function filterEmoji(string $text='', string $replaceTo = '')
{
    $clean_text = "";
    // Match Emoticons
    $regexEmoticons = '/[\x{1F600}-\x{1F64F}]/u';
    $clean_text = preg_replace($regexEmoticons, $replaceTo, $text);
    // Match Miscellaneous Symbols and Pictographs
    $regexSymbols = '/[\x{1F300}-\x{1F5FF}]/u';
    $clean_text = preg_replace($regexSymbols, $replaceTo, $clean_text);
    // Match Transport And Map Symbols
    $regexTransport = '/[\x{1F680}-\x{1F6FF}]/u';
    $clean_text = preg_replace($regexTransport, $replaceTo, $clean_text);
    // Match Miscellaneous Symbols
    $regexMisc = '/[\x{2600}-\x{26FF}]/u';
    $clean_text = preg_replace($regexMisc, $replaceTo, $clean_text);
    // Match Dingbats
    $regexDingbats = '/[\x{2700}-\x{27BF}]/u';
    $clean_text = preg_replace($regexDingbats, $replaceTo, $clean_text);
    return self::reeChar($clean_text);
}
/**
 * 过滤特殊字符 删除空格与回车,去除特殊字符
 */
function reeChar(string $strParam='')
{
    $regex = "/\/|\~|\!|\@|\#|\\$|\%|\^|\&|\*|\(|\)|\_|\+|\{|\}|\:|\<|\>|\?|\[|\]|\,|\.|\/|\;|\'|\`|\-|\=|\\\|\|/";
    $qian = array(" ", "　", "\t", "\n", "\r");
    $cv = preg_replace($regex, "", $strParam);
    return str_replace($qian, '', $cv);
}

原文链接：https://blog.csdn.net/weixin_41031687/article/details/82794761