chaoswey

function ip_in_range($ip, $range)
{
    if (strpos($range, '/') == false) {
        return ($ip == $range);
    }
    list($range, $netmask) = explode('/', $range, 2);
    $range_decimal = ip2long($range);
    $ip_decimal = ip2long($ip);
    $wildcard_decimal = pow(2, (32 - $netmask)) - 1;
    $netmask_decimal = ~$wildcard_decimal;

chaoswey

    /**
     * @param $hexColor
     * @return string
     */
    function getContrastColor($hexColor)
    {
        $R1 = hexdec(substr($hexColor, 1, 2));
        $G1 = hexdec(substr($hexColor, 3, 2));
        $B1 = hexdec(substr($hexColor, 5, 2));

chaoswey

至少八個字符，至少一個字母和一個數字：
"^(?=.*[A-Za-z])(?=.*\d)[A-Za-z\d]{8,}$"

至少八個字符，至少一個字母，一個數字和一個特殊字符：
"^(?=.*[A-Za-z])(?=.*\d)(?=.*[@$!%*#?&])[A-Za-z\d@$!%*#?&]{8,}$"

至少八個字符，至少一個大寫字母，一個小寫字母和一個數字：
"^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)[a-zA-Z\d]{8,}$"

至少八個字符，至少一個大寫字母，一個小寫字母，一個數字和一個特殊字符：

chaoswey

    <script src="https://maps.googleapis.com/maps/api/js?v=3&key=[key]&sensor=false"></script>
    <script>
        $(function () {
            var geocoder = new google.maps.Geocoder;
            $('#trans').on('click', function () {
                var address = $('input[name=address]').val();
                geocoder.geocode({'address': address}, function (results, status) {
                    if (status === google.maps.GeocoderStatus.OK) {
                        var api = results[0].geometry.location;

chaoswey

<?php
$it = new RecursiveDirectoryIterator($dir, RecursiveDirectoryIterator::SKIP_DOTS);
$files = new RecursiveIteratorIterator($it, RecursiveIteratorIterator::CHILD_FIRST);
foreach($files as $file) {
    if ($file->isDir()){
        rmdir($file->getRealPath());
    } else {
        unlink($file->getRealPath());
    }
}