首页
所有分类
TAGS
文字工具 EMOJI BIBLE
编程 PHP

19个超实用的PHP代码片段

Posted in PHP onMarch 14, 2014

1) Whois query using PHP ——利用PHP获取Whois请求

利用这段代码，在特定的域名里可获得whois信息。把域名名称作为参数，并显示所有域名的相关信息。

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:   
    //  
    // <a href="http://de.wikipedia.org/wiki/Whois">http://de.wikipedia.org/wiki/Whois</a>  
    //  
    $servers = array(  
        "biz" => "whois.neulevel.biz",  
        "com" => "whois.internic.net",  
        "us" => "whois.nic.us",  
        "coop" => "whois.nic.coop",  
        "info" => "whois.nic.info",  
        "name" => "whois.nic.name",  
        "net" => "whois.internic.net",  
        "gov" => "whois.nic.gov",  
        "edu" => "whois.internic.net",  
        "mil" => "rs.internic.net",  
        "int" => "whois.iana.org",  
        "ac" => "whois.nic.ac",  
        "ae" => "whois.uaenic.ae",  
        "at" => "whois.ripe.net",  
        "au" => "whois.aunic.net",  
        "be" => "whois.dns.be",  
        "bg" => "whois.ripe.net",  
        "br" => "whois.registro.br",  
        "bz" => "whois.belizenic.bz",  
        "ca" => "whois.cira.ca",  
        "cc" => "whois.nic.cc",  
        "ch" => "whois.nic.ch",  
        "cl" => "whois.nic.cl",  
        "cn" => "whois.cnnic.net.cn",  
        "cz" => "whois.nic.cz",  
        "de" => "whois.nic.de",  
        "fr" => "whois.nic.fr",  
        "hu" => "whois.nic.hu",  
        "ie" => "whois.domainregistry.ie",  
        "il" => "whois.isoc.org.il",  
        "in" => "whois.ncst.ernet.in",  
        "ir" => "whois.nic.ir",  
        "mc" => "whois.ripe.net",  
        "to" => "whois.tonic.to",  
        "tv" => "whois.tv",  
        "ru" => "whois.ripn.net",  
        "org" => "whois.pir.org",  
        "aero" => "whois.information.aero",  
        "nl" => "whois.domain-registry.nl"  
    );  
    if (!isset($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;  
} 

2) Text messaging with PHP using the TextMagic API ——使用TextMagic API 获取PHP Test信息

TextMagic引入强大的核心API，可轻松将SMS发送到手机。该API是需要付费。 

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 ) 

3) Get info about your memory usage——获取内存使用率

这段代码帮助你获取内存使用率。

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 
*/ 

4) Display source code of any webpage——查看任意网页源代码

如果你想查看网页源代码，那么只需更改第二行的URL，源代码就会在网页上显示出。

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

5) Create data uri's——创建数据uri

通过使用此代码，你可以创建数据Uri，这对在HTML/CSS中嵌入图片非常有用，可帮助节省HTTP请求。

function data_uri($file, $mime) {  
  $contents=file_get_contents($file);  
  $base64=base64_encode($contents);  
  echo "data:$mime;base64,$base64";  
}

6) Detect location by IP——通过IP检索出地理位置

这段代码帮助你查找特定的IP，只需在功能参数上输入IP，就可检测出位置。

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

7) Detect browser language——查看浏览器语言

检测浏览器使用的代码脚本语言。

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;  
} 

8) Check if server is HTTPS——检测服务器是否是HTTPS 
if ($_SERVER['HTTPS'] != "on") {   
    echo "This is not HTTPS";  
}else{  
    echo "This is HTTPS";  
} 

9) Generate CSV file from a PHP array——在PHP数组中生成.csv 文件
function generateCsv($data, $delimiter = ',', $enclosure = '"') {  
   $handle = fopen('php://temp', 'r+');  
   foreach ($data as $line) {  
           fputcsv($handle, $line, $delimiter, $enclosure);  
   }  
   rewind($handle);  
   while (!feof($handle)) {  
           $contents .= fread($handle, 8192);  
   }  
   fclose($handle);  
   return $contents;  
} 

10.查找Longitudes与Latitudes之间的距离

function getDistanceBetweenPointsNew($latitude1, $longitude1, $latitude2, $longitude2) {  
    $theta = $longitude1 - $longitude2;  
    $miles = (sin(deg2rad($latitude1)) * sin(deg2rad($latitude2))) + (cos(deg2rad($latitude1)) * cos(deg2rad($latitude2)) * cos(deg2rad($theta)));  
    $miles = acos($miles);  
    $miles = rad2deg($miles);  
    $miles = $miles * 60 * 1.1515;  
    $feet = $miles * 5280;  
    $yards = $feet / 3;  
    $kilometers = $miles * 1.609344;  
    $meters = $kilometers * 1000;  
    return compact('miles','feet','yards','kilometers','meters');   
}  $point1 = array('lat' => 40.770623, 'long' => -73.964367);  
$point2 = array('lat' => 40.758224, 'long' => -73.917404);  
$distance = getDistanceBetweenPointsNew($point1['lat'], $point1['long'], $point2['lat'], $point2['long']);  
foreach ($distance as $unit => $value) {  
    echo $unit.': '.number_format($value,4).'  
';  
}

The example returns the following:  

miles: 2.6025  
feet: 13,741.4350  
yards: 4,580.4783  
kilometers: 4.1884  
meters: 4,188.3894

11.完善cURL功能

function xcurl($url,$ref=null,$post=array(),$ua="Mozilla/5.0 (X11; Linux x86_64; rv:2.2a1pre) Gecko/20110324 Firefox/4.2a1pre",$print=false) {  
    $ch = curl_init();  
    curl_setopt($ch, CURLOPT_AUTOREFERER, true);  
    if(!empty($ref)) {  
        curl_setopt($ch, CURLOPT_REFERER, $ref);  
    }  
    curl_setopt($ch, CURLOPT_URL, $url);  
    curl_setopt($ch, CURLOPT_HEADER, 0);  
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);  
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);  
    if(!empty($ua)) {  
        curl_setopt($ch, CURLOPT_USERAGENT, $ua);  
    }  
    if(count($post) > 0){  
        curl_setopt($ch, CURLOPT_POST, 1);  
        curl_setopt($ch, CURLOPT_POSTFIELDS, $post);      
    }  
    $output = curl_exec($ch);  
    curl_close($ch);  
    if($print) {  
        print($output);  
    } else {  
        return $output;  
    }  
}

12.清理用户输入
<?php
function cleanInput($input) {  $search = array(
    '@<script[^>]*?>.*?</script>@si',   // Strip out javascript
    '@<[\/\!]*?[^<>]*?>@si',            // Strip out HTML tags
    '@<style[^>]*?>.*?</style>@siU',    // Strip style tags properly
    '@<![\s\S]*?--[ \t\n\r]*>@'         // Strip multi-line comments
  );
    $output = preg_replace($search, '', $input);
    return $output;
  }
?>
<?php
function sanitize($input) {
    if (is_array($input)) {
        foreach($input as $var=>$val) {
            $output[$var] = sanitize($val);
        }
    }
    else {
        if (get_magic_quotes_gpc()) {
            $input = stripslashes($input);
        }
        $input  = cleanInput($input);
        $output = mysql_real_escape_string($input);
    }
    return $output;
}
?>

13.通过IP（城市、国家）检测地理位置
function detect_city($ip) {          $default = 'Hollywood, CA';  
        if (!is_string($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 : ([^<]*)  
}i', $content, $regs) ) { $city = $regs[1]; } if ( preg_match('{  
State/Province : ([^<]*)  
}i', $content, $regs) ) { $state = $regs[1]; } if( $city!='' && $state!='' ){ $location = $city . ', ' . $state; return $location; }else{ return $default; } } 

14.设置密码强度
function password_strength($string){ 
    $h    = 0; 
    $size = strlen($string); 
    foreach(count_chars($string, 1) as $v){ 
        $p = $v / $size; 
        $h -= $p * log($p) / log(2); 
    } 
    $strength = ($h / 4) * 100; 
    if($strength > 100){ 
        $strength = 100; 
    } 
    return $strength; 
} 
var_dump(password_strength("Correct Horse Battery Staple")); 
echo "<br>"; 
var_dump(password_strength("Super Monkey Ball")); 
echo "<br>"; 
var_dump(password_strength("Tr0ub4dor&3")); 
echo "<br>"; 
var_dump(password_strength("abc123")); 
echo "<br>"; 
var_dump(password_strength("sweet"));

15.检测浏览器语言，只提供可用的$availableLanguages作为数组(‘en', ‘de', ‘es')
function get_client_language($availableLanguages, $default='en'){      if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {  
        $langs=explode(',',$_SERVER['HTTP_ACCEPT_LANGUAGE']);  
        //start going through each one  
        foreach ($langs as $value){  
            $choice=substr($value,0,2);  
            if(in_array($choice, $availableLanguages)){  
                return $choice;  
            }  
        }  
    }   
    return $default;  
}

16.创建数据URL

function data_uri($file, $mime) {  
  $contents=file_get_contents($file);  
  $base64=base64_encode($contents);  
  echo "data:$mime;base64,$base64";  
}

17.创建更加友好的页面标题SEO URL

输入示例：$title = “This foo's bar is rockin' cool!”; echo makeseoname($title); //RETURNS: //this-foos-bar-is-rockin-cool

function make_seo_name($title) {  
    return preg_replace('/[^a-z0-9_-]/i', '', strtolower(str_replace(' ', '-', trim($title))));  
}

18.终极加密功能
// f(ucking) u(ncrackable) e(ncryption) function by BlackHatDBL (www.netforme.net)  
function fue($hash,$times) {  
    // Execute the encryption(s) as many times as the user wants  
    for($i=$times;$i>0;$i--) {  
        // Encode with base64...  
        $hash=base64_encode($hash);  
        // and md5...  
        $hash=md5($hash);  
        // sha1...  
        $hash=sha1($hash);  
        // sha256... (one more)  
        $hash=hash("sha256", $hash);  
        // sha512  
        $hash=hash("sha512", $hash);      }  
    // Finaly, when done, return the value  
    return $hash;  
}

19a.Tweeter Feed Runner——使用任意twitter名，可在任意页面上加载用户资源。
  
    public function loadTimeline($user, $max = 20){   
        $this->twitURL .= 'statuses/user_timeline.xml?screen_name='.$user.'&count='.$max;   
        $ch        = curl_init();   
        curl_setopt($ch, CURLOPT_URL, $this->twitURL);   
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);   
        $this->xml = curl_exec($ch);   
        return $this;   
    }   
    public function getTweets(){   
        $this->twitterArr = $this->getTimelineArray();   
        $tweets = array();   
        foreach($this->twitterArr->status as $status){   
            $tweets[$status->created_at->__toString()] = $status->text->__toString();   
        }   
        return $tweets;   
    }   
    public function getTimelineArray(){   
        return simplexml_load_string($this->xml);   
    }   
    public function formatTweet($tweet){   
        $tweet = preg_replace("/(http(.+?))( |$)/","$1$3", $tweet);   
        $tweet = preg_replace("/#(.+?)(\h|\W|$)/", "#$1$2", $tweet);   
        $tweet = preg_replace("/@(.+?)(\h|\W|$)/", "@$1$2", $tweet);   
        return $tweet;   
    }  

19b. Tweeter Feed Runner——用于在主题中创建文件，比如：example.php
loadTimeline("phpsnips")->getTweets();   
foreach($feed as $time => $message){   
    echo "<div class='tweet'>".$twitter->formatTweet($message)."<br />At: ".$time."</div>";   
} 

19个超实用的PHP代码片段

声明：登载此文出于传递更多信息之目的，并不意味着赞同其观点或证实其描述。

PHP 相关文章推荐
我用php+mysql写的留言本
Oct 09 PHP
php 3行代码的分页算法(求起始页和结束页)
Oct 21 PHP
洪恩在线成语词典小偷程序php版
Apr 20 PHP
PHP内存缓存Memcached类实例
Dec 08 PHP
php显示指定目录下子目录的方法
Mar 20 PHP
Laravel SQL语句记录方式(推荐)
May 26 PHP
Yii2中Restful API原理实例分析
Jul 25 PHP
php利用header函数下载各种文件
Aug 24 PHP
thinkphp整合微信支付代码分享
Nov 24 PHP
浅谈关于PHP解决图片无损压缩的问题
Sep 01 PHP
Laravel 5.5 的自定义验证对象/类示例代码详解
Aug 29 PHP
PHP实现二维数组（或多维数组）转换成一维数组的常见方法总结
Dec 04 PHP
php的zip解压缩类pclzip使用示例
Mar 14 #PHP
php多功能图片处理类分享(php图片缩放类)
Mar 14 #PHP
zf框架db类的分页示例分享
Mar 14 #PHP
zf框架的db类select查询器join链表使用示例(zend框架)
Mar 14 #PHP
zf框架的zend_cache缓存使用方法(zend框架)
Mar 14 #PHP
php实现天干地支计算器示例
Mar 14 #PHP
PHP判断指定时间段的2个方法
Mar 14 #PHP
click(1) KVM(1) scss(1) 自定义组件(1) Yolov5(1) TimePickerView(1) 项目打包(2) vue-cli3.x(1) vue-router-link(1) Jmerte(1)
You might like
颠覆常识！无色透明的咖啡诞生了（中日双语）
2021/03/03 咖啡文化
PHP完整的日历类(CLASS)
2006/11/27 PHP
PHP中VC6、VC9、TS、NTS版本的区别与用法详解
2013/10/26 PHP
eclipse php wamp配置教程
2016/06/30 PHP
Javascript操作cookie的函数代码
2012/10/03 Javascript
IE及IE6浏览器中判断JS文件加载成功失败的方法
2015/02/18 Javascript
分享经典的JavaScript开发技巧
2015/11/21 Javascript
JS组件Bootstrap Table表格行拖拽效果实现代码
2020/08/27 Javascript
iscroll.js的上拉下拉刷新时无法回弹的解决方法
2016/02/18 Javascript
nodeJS（express4.x）+vue（vue-cli）构建前后端分离实例(带跨域)
2017/07/05 NodeJs
JSONP原理及应用实例详解
2018/09/13 Javascript
关于Vue源码vm.$watch()内部原理详解
2019/04/26 Javascript
浅谈Vue为什么不能检测数组变动
2019/10/14 Javascript
uniapp实现可以左右滑动导航栏
2020/10/21 Javascript
python进阶教程之词典、字典、dict
2014/08/29 Python
Python中文字符串截取问题
2015/06/15 Python
pyhton列表转换为数组的实例
2018/04/04 Python
python opencv 简单阈值算法的实现
2019/08/04 Python
用Python画一个LinkinPark的logo代码实例
2019/09/10 Python
在python中修改.properties文件的操作
2020/04/08 Python
python中如何写类
2020/06/29 Python
手机端用rem+scss做适配的详解
2017/11/15 HTML / CSS
西班牙创意礼品和小工具网上商店：Curiosite
2016/07/26 全球购物
Zavvi美国：英国娱乐之家
2017/03/19 全球购物
联想马亚西亚官方网站：Lenovo Malaysia
2018/09/19 全球购物
荷兰网上药店：Drogisterij.net
2019/09/03 全球购物
几个Linux面试题笔试题
2016/08/01 面试题
妇产科护士自我鉴定
2013/10/15 职场文书
最经典的大学生职业生涯规划范文
2014/03/05 职场文书
银行求职信
2014/05/31 职场文书
二年级语文上册复习计划
2015/01/19 职场文书
2015年国庆节广播稿
2015/08/19 职场文书
人民调解协议书
2016/03/21 职场文书
终止合同协议书范本
2016/03/22 职场文书
2019餐饮行业创业计划书！
2019/06/27 职场文书
golang 语言中错误处理机制
2021/08/30 Golang