machete/plugins/Common.php

<?php
/**
 * 常用的公用方法
 */
Class Common {
	public static function isCellphoneNumber($number) {
        return preg_match("/^1[3456789][0-9]{9}$/", $number);
    }

    //朋友手机号码的末 6 位
    public static function isFriendsCode($number) {
        return preg_match("/^[0-9]{6}$/", $number);
    }

    //用户注册成功后，保存他的手机号码 6 位尾号作为邀请码
    protected function saveFriendsCode($cellphone) {
        $logTime = date('Y-m-d H:i:s');
        $logDir = __DIR__ . '/../runtime/friendscode/';
        $logFilename = substr($cellphone, -6) . '.log';
        $logOk = @error_log("{$logTime} created\n", 3, "{$logDir}{$logFilename}");
        if (!$logOk) {      //try to mkdir
            @mkdir($logDir, 0700, true);
            @error_log("{$logTime} created\n", 3, "{$logDir}{$logFilename}");
        }
    }

    protected function existFriendsCode($code) {
        if (self::isFriendsCode($code) == false) {return false;}
        $logDir = __DIR__ . '/../runtime/friendscode/';
        $logFilename = "{$logDir}{$code}.log";
        return file_exists($logFilename);
    }

}