PHP傳送簡訊郵件等眾多實用PHP代碼分享

在編程中，總會有一些很通用的需求，或許前人已經給我們造好了輪子，只是我們沒有發現。本文就分享一些常見的實用功能程式碼片段。

這些 PHP 片段對於 PHP 初學者也非常有協助，非常容易學習，讓我們開始學習吧～

1. 發送 SMS

在開發 Web 或者行動裝置 App的時候，經常會遇到需要發送 SMS 給使用者，或者因為登入原因，或者是為了發送資訊。下面的 PHP 代碼就實現了發送 SMS 的功能。

為了使用任何的語言發送 SMS，需要一個 SMS gateway。大部分的 SMS 會提供一個 API，這裡是使用 MSG91 作為 SMS gateway。

function send_sms($mobile,$msg){$authKey = "XXXXXXXXXXX";date_default_timezone_set("Asia/Kolkata");$date = strftime("%Y-%m-%d %H:%M:%S");//Multiple mobiles numbers separated by comma$mobileNumber = $mobile;//Sender ID,While using route4 sender id should be 6 characters long.$senderId = "IKOONK";//Your message to send, Add URL encoding here.$message = urlencode($msg);//Define route $route = "template";//Prepare you post parameters$postData = array(    'authkey' => $authKey,    'mobiles' => $mobileNumber,    'message' => $message,    'sender' => $senderId,    'route' => $route);//API URL$url="https://control.msg91.com/sendhttp.php";// init the resource$ch = curl_init();curl_setopt_array($ch, array(    CURLOPT_URL => $url,    CURLOPT_RETURNTRANSFER => true,    CURLOPT_POST => true,    CURLOPT_POSTFIELDS => $postData    //,CURLOPT_FOLLOWLOCATION => true));//Ignore SSL certificate verificationcurl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);//get response$output = curl_exec($ch);//Print error if anyif(curl_errno($ch)){    echo 'error:' . curl_error($ch);}curl_close($ch);}

其中“$authKey = "XXXXXXXXXXX";”需要你輸入你的密碼，“$senderId = "IKOONK";”需要你輸入你的 SenderID。當輸入移動號碼的時候需要指定國家代碼 (比如，美國是 1，印度是 91 )。

文法：

<?php$message = "Hello World";$mobile = "918112998787";send_sms($mobile,$message);?>

2. 使用 mandrill 發送郵件

Mandrill 是一款強大的 SMTP 提供器。開發人員傾向於使用一個第三方 SMTP provider 來擷取更好的收件交付。

下面的函數中，你需要把 “Mandrill.php” 放在同一個檔案夾，作為 PHP 檔案，這樣就可以使用TA來發送郵件。

function send_email($to_email,$subject,$message1){require_once 'Mandrill.php';$apikey = 'XXXXXXXXXX'; //specify your api key here$mandrill = new Mandrill($apikey);$message = new stdClass();$message->html = $message1;$message->text = $message1;$message->subject = $subject;$message->from_email = "blog@koonk.com";//Sender Email$message->from_name  = "KOONK";//Sender Name$message->to = array(array("email" => $to_email));$message->track_opens = true;$response = $mandrill->messages->send($message);}

$apikey = 'XXXXXXXXXX'; //specify your api key here”這裡需要你指定你的 API 金鑰（從 Mandrill 賬戶中獲得）

文法：

<?php$to = "abc@example.com";$subject = "This is a test email";$message = "Hello World!";send_email($to,$subject,$message);?>

為了達到最好的效果，最好按照 Mandrill 的教程去配置 DNS。

3. PHP 函數：阻止 SQL 注入

SQL 注入或者 SQLi 常見的攻擊網站的手段，使用下面的代碼可以協助你防止這些工具。

function clean($input){    if (is_array($input))    {        foreach ($input as $key => $val)         {            $output[$key] = clean($val);            // $output[$key] = $this->clean($val);        }    }    else    {        $output = (string) $input;        // if magic quotes is on then use strip slashes        if (get_magic_quotes_gpc())         {            $output = stripslashes($output);        }        // $output = strip_tags($output);        $output = htmlentities($output, ENT_QUOTES, 'UTF-8');    }// return the clean text    return $output;}

文法：

<?php$text = "<script>alert(1)</script>";$text = clean($text);echo $text;?>

4. 檢測使用者位置

使用下面的函數，可以檢測使用者是在哪個城市訪問你的網站

function detect_city($ip) {        $default = 'UNKNOWN';        $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;         }    }

文法：

<?php$ip = $_SERVER['REMOTE_ADDR'];$city = detect_city($ip);echo $city;?>

5. 擷取 Web 頁面的原始碼

使用下面的函數，可以擷取任意 Web 頁面的 HTML 程式碼

function display_sourcecode($url){$lines = file($url);$output = "";foreach ($lines as $line_num => $line) {     // loop thru each line and prepend line numbers    $output.= "Line #<b>{$line_num}</b> : " . htmlspecialchars($line) . "\n";}}

文法：

<?php$url = "http://blog.koonk.com";$source = display_sourcecode($url);echo $source;?>

6. 計算喜歡你的 Facebook 頁面的使用者

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

文法：

<?php$page = "koonktechnologies";$count = fb_fan_count($page);echo $count;?>

7. 確定任意圖片的主導顏色

function dominant_color($image){$i = imagecreatefromjpeg($image);for ($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);}

8. whois 查詢

使用下面的函數可以擷取任何網域名稱使用者的完整細節

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;}

文法：

<?php$domain = "http://www.blog.koonk.com";$result = whois_query($domain);print_r($result);?>

9. 驗證郵箱地址

有時候，當在網站填寫表單，使用者可能會輸入錯誤的郵箱地址，這個函數可以驗證郵箱地址是否有效。

function is_validemail($email){$check = 0;if(filter_var($email,FILTER_VALIDATE_EMAIL)){$check = 1;}return $check;}

文法：

<?php$email = "blog@koonk.com";$check = is_validemail($email);echo $check;// If the output is 1, then email is valid.?>

10. 擷取使用者的真實 IP

function getRealIpAddr()  {      if (!emptyempty($_SERVER['HTTP_CLIENT_IP']))      {          $ip=$_SERVER['HTTP_CLIENT_IP'];      }      elseif (!emptyempty($_SERVER['HTTP_X_FORWARDED_FOR']))      //to check ip is pass from proxy      {          $ip=$_SERVER['HTTP_X_FORWARDED_FOR'];      }      else      {          $ip=$_SERVER['REMOTE_ADDR'];      }      return $ip;  }

文法：

<?php$ip = getRealIpAddr();echo $ip;?>

11. 轉換 URL：從字串變成超連結

如果你正在開發論壇，部落格或者是一個常規的表單提交，很多時候都要使用者訪問一個網站。使用這個函數，URL 字串就可以自動的轉換為超連結。

function makeClickableLinks($text) {   $text = eregi_replace('(((f|ht){1}tp://)[-a-zA-Z0-9@:%_+.~#?&//=]+)',   '<a href="\1">\1</a>', $text);   $text = eregi_replace('([[:space:]()[{}])(www.[-a-zA-Z0-9@:%_+.~#?&//=]+)',   '\1<a href="http://\2">\2</a>', $text);   $text = eregi_replace('([_.0-9a-z-]+@([0-9a-z][0-9a-z-]+.)+[a-z]{2,3})',   '<a href="mailto:\1">\1</a>', $text);  return $text;  }

文法：

<?php$text = "This is my first post on http://blog.koonk.com";$text = makeClickableLinks($text);echo $text;?>

12. 阻止多個 IP 訪問你的網站

這個程式碼片段可以方便你禁止某些特定的 IP 位址訪問你的網站

if ( !file_exists('blocked_ips.txt') ) { $deny_ips = array(  '127.0.0.1',  '192.168.1.1',  '83.76.27.9',  '192.168.1.163' );} else { $deny_ips = file('blocked_ips.txt');}// read user ip adress:$ip = isset($_SERVER['REMOTE_ADDR']) ? trim($_SERVER['REMOTE_ADDR']) : '';// search current IP in $deny_ips arrayif ( (array_search($ip, $deny_ips))!== FALSE ) { // address is blocked: echo 'Your IP adress ('.$ip.') was blocked!'; exit;}

13. 強制性檔案下載

如果你需要下載特定的檔案而不用另開新視窗，下面的程式碼片段可以協助你。

function force_download($file) {     $dir      = "../log/exports/";     if ((isset($file))&&(file_exists($dir.$file))) {        header("Content-type: application/force-download");        header('Content-Disposition: inline; filename="' . $dir.$file . '"');        header("Content-Transfer-Encoding: Binary");        header("Content-length: ".filesize($dir.$file));        header('Content-Type: application/octet-stream');        header('Content-Disposition: attachment; filename="' . $file . '"');        readfile("$dir$file");     } else {        echo "No file selected";     } }

文法：

<phpforce_download("image.jpg");?>

14. 建立 JSON 資料

使用下面的 PHP 片段可以建立 JSON 資料，可以方便你建立行動裝置 App的 Web 服務

$json_data = array ('id'=>1,'name'=>"Mohit");echo json_encode($json_data);

15. 壓縮 zip 檔案

使用下面的 PHP 片段可以即時壓縮 zip 檔案

function create_zip($files = array(),$destination = '',$overwrite = false) {      //if the zip file already exists and overwrite is false, return false      if(file_exists($destination) && !$overwrite) { return false; }      //vars      $valid_files = array();      //if files were passed in...      if(is_array($files)) {          //cycle through each file          foreach($files as $file) {              //make sure the file exists              if(file_exists($file)) {                  $valid_files[] = $file;              }          }      }      //if we have good files...      if(count($valid_files)) {          //create the archive          $zip = new ZipArchive();          if($zip->open($destination,$overwrite ? ZIPARCHIVE::OVERWRITE : ZIPARCHIVE::CREATE) !== true) {              return false;          }          //add the files          foreach($valid_files as $file) {              $zip->addFile($file,$file);          }          //debug          //echo 'The zip archive contains ',$zip->numFiles,' files with a status of ',$zip->status;          //close the zip -- done!          $zip->close();          //check to make sure the file exists          return file_exists($destination);      }      else      {          return false;      }  }

文法：

<?php$files=array('file1.jpg', 'file2.jpg', 'file3.gif');  create_zip($files, 'myzipfile.zip', true); ?>

16. 解壓檔案

function unzip($location,$newLocation){        if(exec("unzip $location",$arr)){            mkdir($newLocation);            for($i = 1;$i< count($arr);$i++){                $file = trim(preg_replace("~inflating: ~","",$arr[$i]));                copy($location.'/'.$file,$newLocation.'/'.$file);                unlink($location.'/'.$file);            }            return TRUE;        }else{            return FALSE;        }}

文法：

<?phpunzip('test.zip','unziped/test'); //File would be unzipped in unziped/test folder?>

17. 縮放圖片

function resize_image($filename, $tmpname, $xmax, $ymax)  {      $ext = explode(".", $filename);      $ext = $ext[count($ext)-1];      if($ext == "jpg" || $ext == "jpeg")          $im = imagecreatefromjpeg($tmpname);      elseif($ext == "png")          $im = imagecreatefrompng($tmpname);      elseif($ext == "gif")          $im = imagecreatefromgif($tmpname);      $x = imagesx($im);      $y = imagesy($im);      if($x <= $xmax && $y <= $ymax)          return $im;      if($x >= $y) {          $newx = $xmax;          $newy = $newx * $y / $x;      }      else {          $newy = $ymax;          $newx = $x / $y * $newy;      }      $im2 = imagecreatetruecolor($newx, $newy);      imagecopyresized($im2, $im, 0, 0, 0, 0, floor($newx), floor($newy), $x, $y);      return $im2;   }

18. 使用 mail() 發送郵件

之前我們提供了如何使用 Mandrill 發送郵件的 PHP 程式碼片段，但是如果你不想使用第三方服務，那麼可以使用下面的 PHP 程式碼片段。

function send_mail($to,$subject,$body){$headers = "From: KOONK\r\n";$headers .= "Reply-To: blog@koonk.com\r\n";$headers .= "Return-Path: blog@koonk.com\r\n";$headers .= "X-Mailer: PHP5\n";$headers .= 'MIME-Version: 1.0' . "\n";$headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";mail($to,$subject,$body,$headers);}

文法：

<?php$to = "admin@koonk.com";$subject = "This is a test mail";$body = "Hello World!";send_mail($to,$subject,$body);?>

19. 把秒轉換成天數，小時數和分鐘

function secsToStr($secs) {    if($secs>=86400){$days=floor($secs/86400);$secs=$secs%86400;$r=$days.' day';if($days<>1){$r.='s';}if($secs>0){$r.=', ';}}    if($secs>=3600){$hours=floor($secs/3600);$secs=$secs%3600;$r.=$hours.' hour';if($hours<>1){$r.='s';}if($secs>0){$r.=', ';}}    if($secs>=60){$minutes=floor($secs/60);$secs=$secs%60;$r.=$minutes.' minute';if($minutes<>1){$r.='s';}if($secs>0){$r.=', ';}}    $r.=$secs.' second';if($secs<>1){$r.='s';}    return $r;}

文法：

<?php$seconds = "56789";$output = secsToStr($seconds);echo $output;?>