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必须收藏的23个php实用代码片段

(编辑：jimmy 日期: 2024/5/20 浏览：3 次 )

在编写代码的时候有个神奇的工具总是好的！下面这里收集了 40+ PHP 代码片段，可以帮助你开发 PHP 项目。
这些 PHP 片段对于 PHP 初学者也非常有帮助，非常容易学习，让我们开始学习吧～
1. 发送 SMS
在开发 Web 或者移动应用的时候，经常会遇到需要发送 SMS 给用户，或者因为登录原因，或者是为了发送信息。下面的 PHP 代码就实现了发送 SMS 的功能。
为了使用任何的语言发送 SMS，需要一个 SMS gateway。大部分的 SMS 会提供一个 API，这里是使用 MSG91 作为 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 verification
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
      
      
//get response
$output = curl_exec($ch);
//Print error if any
if(curl_errno($ch))
{
  echo 'error:' . curl_error($ch);
}
      
curl_close($ch);
}

其中“$authKey = "XXXXXXXXXXX";”需要你输入你的密码，“$senderId = "IKOONK";”需要你输入你的 SenderID。当输入移动号码的时候需要指定国家代码 (比如，美国是 1，印度是 91 )。
语法： 

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



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”这里需要你指定你的 API 密钥（从 Mandrill 账户中获得）。 

语法： 







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



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;
}






语法： 







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



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"htmlcode">



<"htmlcode">



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";
}
}






语法： 







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



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






语法： 







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



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 查询 

使用下面的函数可以获取任何域名用户的完整细节 







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;
}






语法： 







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



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






语法：







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



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; 
}






语法： 







<"htmlcode">



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






语法：







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



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']) "htmlcode">



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";
  }
}






语法： 







<php
force_download("image.jpg");
"htmlcode">



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






15. 压缩 zip 文件 

使用下面的 PHP 片段可以即时压缩 zip 文件 







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 "htmlcode">



<"htmlcode">



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;
    }
}









语法： 







<"htmlcode">



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() 发送邮件 

 之前我们提供了如何使用 Mandrill 发送邮件的 PHP 代码片段，但是如果你不想使用第三方服务，那么可以使用下面的 PHP 代码片段。 







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);
}
   






语法：







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



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;
}






语法： 







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



<"htmlcode">



function list_files($dir)
{
  if(is_dir($dir))
  {
    if($handle = opendir($dir))
    {
      while(($file = readdir($handle)) !== false)
      {
        if($file != "." && $file != ".." && $file != "Thumbs.db"/*pesky windows, images..*/)
        {
          echo '<a target="_blank" href="'.$dir.$file.'">'.$file.'</a>'."\n";
        }
      }
      closedir($handle);
    }
  }
}






语法： 







<"images/"); //This will list all files of images folder
"htmlcode">



function get_client_language($availableLanguages, $default='en'){
  if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
    $langs=explode(',',$_SERVER['HTTP_ACCEPT_LANGUAGE']);
    foreach ($langs as $value){
      $choice=substr($value,0,2);
      if(in_array($choice, $availableLanguages)){
        return $choice;
      }
    }
  }
  return $default;
}






23. 查看 CSV 文件 







function readCSV($csvFile){
  $file_handle = fopen($csvFile, 'r');
  while (!feof($file_handle) ) {
    $line_of_text[] = fgetcsv($file_handle, 1024);
  }
  fclose($file_handle);
  return $line_of_text;
}
  






语法：







<"test.csv";
$csv = readCSV($csvFile);
$a = csv[0][0]; // This will get value of Column 1 & Row 1
?>





以上就是本文的全部内容，希望对大家的学习有所帮助。


            

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