46 個非常有用的 PHP 程式碼片段
阿新 • • 發佈：2019-01-13
http://www.oschina.net/question/2012764_246023?from=20150809
1. 傳送 SMS
在開發 Web 或者移動應用的時候，經常會遇到需要傳送 SMS 給使用者，或者因為登入原因，或者是為了傳送資訊。下面的 PHP 程式碼就實現了傳送 SMS 的功能。
為了使用任何的語言傳送 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。
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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($ch);
}
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其中“$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程式碼 (比如，美國是 1，印度是 91 )。
語法：
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<?php
$message = "Hello World";
$mobile = "918112998787";
send_sms($mobile,$message);
?>
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2. 使用 mandrill 傳送郵件
Mandrill 是一款強大的 SMTP 提供器。開發者傾向於使用一個第三方 SMTP provider 來獲取更好的收件交付。
下面的函式中，你需要把 “Mandrill.php” 放在同一個資料夾，作為 PHP 檔案，這樣就可以使用TA來發送郵件。
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function send_email($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 = "[email protected]";//Sender Email
$message->from_name = "KOONK";//Sender Name
$message->to = array(array("email" => $to_email));
$message->track_opens = true;
$response = $mandrill->messages->send($message);
}
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“$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）。
語法：
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<?php
$to = "[email protected]";
$subject = "This is a test email";
$message = "Hello World!";
send_email($to,$subject,$message);
?>
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為了達到最好的效果，最好按照 Mandrill 的教程去配置 DNS。
3. PHP 函式：阻止 SQL 注入
SQL 注入或者 SQLi 常見的攻擊網站的手段，使用下面的程式碼可以幫助你防止這些工具。
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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;
}
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語法：
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<?php
$text = "<script>alert(1)</script>";
$text = clean($text);
echo $text;
?>
|
4. 檢測使用者位置
使用下面的函式，可以檢測使用者是在哪個城市訪問你的網站
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function detect_city($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;
}
}
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語法：
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<?php
$ip = $_SERVER['REMOTE_ADDR'];
$city = detect_city($ip);
echo $city;
?>
|
5. 獲取 Web 頁面的原始碼
使用下面的函式，可以獲取任意 Web 頁面的 HTML 程式碼
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function display_sourcecode($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) . "<br>\n";
}
}
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語法：
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<?php
$url = "http://blog.koonk.com";
$source = display_sourcecode($url);
echo $source;
?>
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6. 計算喜歡你的 Facebook 頁面的使用者
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function fb_fan_count($facebook_name)
{
$data = json_decode(file_get_contents("https://graph.facebook.com/".$facebook_name));
$likes = $data->likes;
return $likes;
}
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語法：
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<?php
$page = "koonktechnologies";
$count = fb_fan_count($page);
echo $count;
?>
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7. 確定任意圖片的主導顏色
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function dominant_color($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/$total);
}
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8. whois 查詢
使用下面的函式可以獲取任何域名使用者的完整細節
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function whois_query($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])){
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