分享一个验证身份号函数:
function validateIdCard($value) { if (!preg_match('/^\d{17}[0-9xX]$/', $value)) { //基本格式校验 return false; } $parsed = date_parse(substr($value, 6, 8)); if (!(isset($parsed['warning_count']) && $parsed['warning_count'] == 0)) { //年月日位校验 return false; } $base = substr($value, 0, 17); $factor = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2]; $tokens = ['1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2']; $checkSum = 0; for ($i=0; $i<17; $i++) { $checkSum += intval(substr($base, $i, 1)) * $factor[$i]; } $mod = $checkSum % 11; $token = $tokens[$mod]; $lastChar = strtoupper(substr($value, 17, 1)); return ($lastChar === $token); //最后一位校验位校验 }