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>";   
} 
PHP 相关文章推荐
php zend解密软件绿色版测试可用
Apr 14 PHP
实现PHP多线程异步请求的3种方法
Jan 17 PHP
php生成html文件方法总结
Dec 01 PHP
php中get_object_vars()方法用法实例
Feb 08 PHP
php 伪造HTTP_REFERER页面URL来源的三种方法
Sep 22 PHP
PHP基于XMLWriter操作xml的方法分析
Jul 17 PHP
PHPMailer使用QQ邮箱实现邮件发送功能
Aug 18 PHP
[原创]php token使用与验证示例【测试可用】
Aug 30 PHP
PHP实现数组转JSon和JSon转数组的方法示例
Jun 14 PHP
使用composer 安装 laravel框架的方法图文详解
Aug 02 PHP
php解决约瑟夫环算法实例分析
Sep 30 PHP
浅析PHP echo 和 print 语句
Jun 30 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
You might like
php5新改动之短标记启用方法
2008/09/11 PHP
PHP字符串长度计算 - strlen()函数使用介绍
2013/10/15 PHP
360搜索引擎自动收录php改写方案
2018/04/28 PHP
PHP 实现base64编码文件上传出现问题详解
2020/09/01 PHP
input 和 textarea 输入框最大文字限制的jquery插件
2011/10/27 Javascript
SOSO地图API使用(一)在地图上画圆实现思路与代码
2013/01/15 Javascript
引用外部js乱码问题分析及解决方案
2013/04/12 Javascript
jQuery实现动画效果的简单实例
2014/01/27 Javascript
iframe窗口高度自适应的又一个巧妙实现思路
2014/04/04 Javascript
$.extend 的一个小问题
2015/06/18 Javascript
jQ处理xml文件和xml字符串的方法(详解)
2016/11/22 Javascript
基于Bootstrap漂亮简洁的CSS3价格表(附源码下载)
2017/02/28 Javascript
解决Vue.js 2.0 有时双向绑定img src属性失败的问题
2018/03/14 Javascript
vue实现在一个方法执行完后执行另一个方法的示例
2018/08/25 Javascript
微信小程序分享小程序码的生成(带参数)以及参数的获取
2020/03/25 Javascript
微信分享invalid signature签名错误踩过的坑
2020/04/11 Javascript
原生JavaScript实现购物车
2021/01/10 Javascript
[01:11:15]VGJ.S vs Secret 2018国际邀请赛小组赛BO2 第一场 8.16
2018/08/17 DOTA
详解Python使用Plotly绘图工具,绘制甘特图
2019/04/02 Python
python批量将excel内容进行翻译写入功能
2019/10/10 Python
flask框架自定义过滤器示例【markdown文件读取和展示功能】
2019/11/08 Python
Python爬虫中Selenium实现文件上传
2020/12/04 Python
python文件路径操作方法总结
2020/12/21 Python
俄罗斯和世界各地的酒店预订:Hotels.com俄罗斯
2016/08/19 全球购物
先进事迹报告会感言
2014/01/24 职场文书
商场消防演习方案
2014/02/12 职场文书
教师远程培训感言
2014/03/06 职场文书
商务考察邀请函模板
2015/02/02 职场文书
鲁迅故里导游词
2015/02/05 职场文书
退税申请报告怎么写
2015/05/18 职场文书
golang goroutine顺序输出方式
2021/04/29 Golang
Java 中的 Unsafe 魔法类的作用大全
2021/06/26 Java/Android
进阶篇之linux环境下安装MySQL数据库
2022/04/09 MySQL
原生JS实现分页
2022/04/19 Javascript
Python matplotlib绘制条形统计图 处理多个实验多组观测值
2022/04/21 Python
vue @ ~ 相对路径 路径别名设置方式
2022/06/05 Vue.js