推荐10个十分实用的PHP代码片段

// 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 ) 

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('{<li>City : ([^<]*)</li>}i', $content, $regs) )  {              $city = $regs[1];          }          if ( preg_match('{<li>State/Province : ([^<]*)</li>}i', $content, $regs) )  {              $state = $regs[1];          }           if( $city!='' && $state!='' ){            $location = $city . ', ' . $state;            return $location;          }else{            return $default;          }  } 

<?php // display source code    $lines = file('http://google.com/');    foreach ($lines as $line_num => $line) {        // loop thru each line and prepend line numbers        echo "Line #<b>{$line_num}</b> : " . htmlspecialchars($line) . "<br>\n";    }   ?>

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

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;    }       

$i = imagecreatefromjpeg("image.jpg");        for ($x=0;$x<imagesx($i);$x++) {        for ($y=0;$y<imagesy($i);$y++) {            $rgb = imagecolorat($i,$x,$y);            $r   = ($rgb >> 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);    

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   */    

$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); 

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;    }  

<?php        // Our custom error handler    function nettuts_error_handler($number, $message, $file, $line, $vars){        $email = "            <p>an error ($number) occurred on line            <strong>$line</strong> and in the <strong>file: $file.</strong>            <p> $message </p>
                    <div class="aritcle_card">
                        <a class="aritcle_card_img" href="/xiazai/js/438">
                            <img src="https://img.php.cn/upload/jscode/000/000/001/58c39e49ba0a7639.png" alt="intense图片全屏浏览插件(jQuery)">
                        </a>
                        <div class="aritcle_card_info">
                            <a href="/xiazai/js/438">intense图片全屏浏览插件(jQuery)</a>
                            <p>intense图片全屏浏览插件(jQuery)，当鼠标点击图片时，可以全屏幕浏览图片，移动鼠标可以查看图片不同的部分，适合相册展示图片细节。兼容主流浏览器，php中文网推荐下载！
使用方法：
1、head区域引用文件styles.css及intense.js
2、在文件中加入<!-- 代码 开始 --><!-- 代码 结束 -->区域代码
3、复制images文件夹</p>
                            <div class="">
                                <img src="/static/images/card_xiazai.png" alt="intense图片全屏浏览插件(jQuery)">
                                <span>72</span>
                            </div>
                        </div>
                        <a href="/xiazai/js/438" class="aritcle_card_btn">
                            <span>查看详情</span>
                            <img src="/static/images/cardxiayige-3.png" alt="intense图片全屏浏览插件(jQuery)">
                        </a>
                    </div>
                ";            $email .= "<pre class="brush:php;toolbar:false;">" . print_r($vars, 1) . "