推荐10个非常实用的PHP代码片段

作者:郫县华伟包装厂 来源:www.cdhwms.com 发布时间:2017-09-08 23:02:12
推荐10个非常实用的PHP代码片段


当使用PHP进行开发的时候,如果你自己收藏 了一些非常有用的方法或者代码片段,那么将会给你的开发工作带来极大的便利。今天我们将介绍10个超级好用的PHP代码片段,希望大家能够喜欢!





1. 使用textmagic API发送消息

可能有的时候,站群系统,你需要发送一些短信给你的客户,那么你绝对应该看看textMagic。它提供了非常简单的API来实现这个功能。但是不是免费的。// Include the TextMagic PHP lib
require('textmagic-sms-api-php/TextMagicAPI.php');
// Set the username and password information
$username = 'myusername';
$password = 'mypassword';
// Create a new instance of TM
$router = new TextMagicAPI(array(
'username' => $username,
'password' => $password
));
// Send a text message to '999-123-4567'
$result = $router->send('Wake up!', array(9991234567), true);
// result: Result is: Array ( [messages] => Array ( [19896128] => 9991234567 ) [sent_text] => Wake up! [parts_count] => 1 )





2. 通过IP判断来源

这是一个非常实用的代码片段,可以帮助你通过IP来判断访客来源。下面的方法通过接收一个参数,然后返回IP所在地点。如果没有找到,则返回UNKNOWN。function detect_city($ip) {
$default = 'UNKNOWN';
if (!is_string($ip) || strlen($ip) < 1 || $ip == '127.0.0.1' || $ip == 'localhost')
$ip = '8.8.8.8';
$curlopt_useragent = 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6 (.NET CLR 3.5.30729)';
$url = 'http://ipinfodb.com/ip_locator.php?ip=' . urlencode($ip);
$ch = curl_init();
$curl_opt = array(
CURLOPT_FOLLOWLOCATION => 1,
CURLOPT_HEADER
=> 0,
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_USERAGENT => $curlopt_useragent,
CURLOPT_URL
=> $url,
CURLOPT_TIMEOUT
=> 1,
CURLOPT_REFERER
=> 'http://' . $_SERVER['HTTP_HOST'],
);
curl_setopt_array($ch, $curl_opt);
$content = curl_exec($ch);
if (!is_null($curl_info)) {
$curl_info = curl_getinfo($ch);
}
curl_close($ch);
if ( preg_match('{
  • City : ([^





    4. 判断服务器是否是HTTPS连接

    需要判断代码运行环境是否是HTTPS服务器?下面的代码可以帮助你实现,非常简单!

    if ($_SERVER['HTTPS'] != "on") {
    echo "This is not HTTPS";
    }else{
    echo "This is HTTPS";
    }





    5. 在文本中显示Facebook 粉丝数

    想看看你在facebook有多少粉丝么?下面代码可以帮助你实现。

    function fb_fan_count($facebook_name){
    // Example: https://graph.facebook.com/digimantra
    $data = json_decode(file_get_contents("https://graph.facebook.com/".$facebook_name));
    echo $data->likes;
    }








    6. 判断一张图片的主色调

    下面这个代码非常实用,能帮助你判断一张图片中的主色调,你可以分析任何图片。

    $i = imagecreatefromjpeg("image.jpg");
    for ($x=0;$x 16) & 0xFF;
    $g = ($rgb >> & 0xFF;
    $b = $rgb & 0xFF;
    $rTotal += $r;
    $gTotal += $g;
    $bTotal += $b;
    $total++;
    }
    }
    $rAverage = round($rTotal/$total);
    $gAverage = round($gTotal/$total);
    $bAverage = round($bTotal/$total);







    7. 了解你的内存使用情况

    为了优化你的脚本,你需要了解服务器上的RAM使用情况。这个代码片段将帮助你了解内存使用,并且打印初始、最终以及峰值使用情况。

    echo "Initial: ".memory_get_usage()." bytes \n";
    /* prints
    Initial: 361400 bytes
    */
    // let's use up some memory
    for ($i = 0; $i < 100000; $i++) {
    $array []= md5($i);
    }
    // let's remove half of the array
    for ($i = 0; $i < 100000; $i++) {
    unset($array[$i]);
    }
    echo "Final: ".memory_get_usage()." bytes \n";
    /* prints
    Final: 885912 bytes
    */
    echo "Peak: ".memory_get_peak_usage()." bytes \n";
    /* prints
    Peak: 13687072 bytes
    */





    8. 使用gzcompress()压缩数据

    当使用很长的string时,可以通过gzcompress()方法,将strings压缩。解压缩使用gzuncompress()即可。代码如下。

    $string =
    "Lorem ipsum dolor sit amet, consectetur
    adipiscing elit. Nunc ut elit id mi ultricies
    adipiscing. Nulla facilisi. Praesent pulvinar,
    sapien vel feugiat vestibulum, nulla dui pretium orci,
    non ultricies elit lacus quis ante. Lorem ipsum dolor
    sit amet, consectetur adipiscing elit. Aliquam
    pretium ullamcorper urna quis iaculis. Etiam ac massa
    sed turpis tempor luctus. Curabitur sed nibh eu elit
    mollis congue. Praesent ipsum diam, consectetur vitae
    ornare a, aliquam a nunc. In id magna pellentesque
    tellus posuere adipiscing. Sed non mi metus, at lacinia
    augue. Sed magna nisi, ornare in mollis in, mollis
    sed nunc. Etiam at justo in leo congue mollis.
    Nullam in neque eget metus hendrerit scelerisque
    eu non enim. Ut malesuada lacus eu nulla bibendum
    id euismod urna sodales. ";
    $compressed = gzcompress($string);
    echo "Original size: ". strlen($string)."\n";
    /* prints
    Original size: 800
    */
    echo "Compressed size: ". strlen($compressed)."\n";
    /* prints
    Compressed size: 418
    */
    // getting it back
    $original = gzuncompress($compressed);







    9. 使用PHP执行Whois查询

    如果你需要得到指定域名的whois信息,为什么不使用PHP呢?下面的代码可以帮助大家。

    function whois_query($domain) {
    // fix the domain name:
    $domain = strtolower(trim($domain));
    $domain = preg_replace('/^http:\/\//i', '', $domain);
    $domain = preg_replace('/^www\./i', '', $domain);
    $domain = explode('/', $domain);
    $domain = trim($domain[0]);
    // split the TLD from domain name
    $_domain = explode('.', $domain);
    $lst = count($_domain)-1;
    $ext = $_domain[$lst];
    // You find resources and lists
    // like these on wikipedia:
    //
    // http://de.wikipedia.org/wiki/Whois
    //
    $servers = array(
    "biz" => "whois.neulevel.biz",
    "com" => "whois.internic.net",
    "us" => "whois.nic.us",
    "coop" => "whois.nic.coop",
    "info" => "whois.nic.info",
    "name" => "whois.nic.name",
    "net" => "whois.internic.net",
    "gov" => "whois.nic.gov",
    "edu" => "whois.internic.net",
    "mil" => "rs.internic.net",
    "int" => "whois.iana.org",
    "ac" => "whois.nic.ac",
    "ae" => "whois.uaenic.ae",
    "at" => "whois.ripe.net",
    "au" => "whois.aunic.net",
    "be" => "whois.dns.be",
    "bg" => "whois.ripe.net",
    "br" => "whois.registro.br",
    "bz" => "whois.belizenic.bz",
    "ca" => "whois.cira.ca",
    "cc" => "whois.nic.cc",
    "ch" => "whois.nic.ch",
    "cl" => "whois.nic.cl",
    "cn" => "whois.cnnic.net.cn",
    "cz" => "whois.nic.cz",
    "de" => "whois.nic.de",
    "fr" => "whois.nic.fr",
    "hu" => "whois.nic.hu",
    "ie" => "whois.domainregistry.ie",
    "il" => "whois.isoc.org.il",
    "in" => "whois.ncst.ernet.in",
    "ir" => "whois.nic.ir",
    "mc" => "whois.ripe.net",
    "to" => "whois.tonic.to",
    "tv" => "whois.tv",
    "ru" => "whois.ripn.net",
    "org" => "whois.pir.org",
    "aero" => "whois.information.aero",
    "nl" => "whois.domain-registry.nl"
    );
    if (!isset($servers[$ext])){
    die('Error: No matching nic server found!');
    }
    $nic_server = $servers[$ext];
    $output = '';
    // connect to whois server:
    if ($conn = fsockopen ($nic_server, 43)) {
    fputs($conn, $domain."\r\n");
    while(!feof($conn)) {
    $output .= fgets($conn,128);
    }
    fclose($conn);
    }
    else { die('Error: Could not connect to ' . $nic_server . '!'); }
    return $output;
    }





    10. 不显示PHP错误而发送电子邮件取代之

    如果你不想在页面中显示PHP错误,也可以通过email来获取错误信息。下面的代码可以帮助你实现。


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