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整理的可以直接用的18个PHP代码函数片段

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Release： 2016-06-08 17:21:01
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编程很多时候我们是拿来主意，不喜欢重复制造轮子，更何况php本身就是开源所以为了节约工作时间，平时就收集一些非常实用的php代码，现在我把它分享给大家，希望能够帮助php开发者提升工作效率。（建议学习还是自己多写代码）

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每位程序员和开发者都喜欢讨论他们最爱的代码片段，尤其是当PHP开发者花费数个小时为网页编码或创建应用时，他们更知道这些代码的重要性。为了节约编码时间，笔者收集了一些较为实用的代码片段，帮助开发者提高工作效率。>>>


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。

 

 代码如下 复制代码
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, $domain."rn");
        while(!feof($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。

 代码如下 复制代码
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。

 代码如下 复制代码
echo "Initial: ".memory_get_usage()." bytes n";
/* prints
Initial: 361400 bytes
*/
 
// let's use up some memory
for ($i = 0; $i     $array []= md5($i);
}
 
// let's remove half of the array
for ($i = 0; $i     unset($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。

 

 代码如下 复制代码
$line) {
    // loop thru each line and prepend line numbers
    echo "Line #{$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。

 

 代码如下 复制代码
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。

 

 代码如下 复制代码
function detect_city($ip) {
 
        $default = 'UNKNOWN';
 
        if (!is_string($ip) || strlen($ip) 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。

 

 代码如下 复制代码
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

 

 代码如下 复制代码
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

 

 代码如下 复制代码
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;
}

 

一、查看邮件是否已被阅读

当你在发送邮件时，你或许很想知道该邮件是否被对方已阅读。这里有段非常有趣的代码片段能够显示对方IP地址记录阅读的实际日期和时间。

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 		 代码如下 		复制代码 	  
 	  
 		

<br>error_reporting(0);<br>Header("Content-Type: image/jpeg");<br><br>//Get IP<br>if (!empty($_SERVER['HTTP_CLIENT_IP']))<br>{<br>  $ip=$_SERVER['HTTP_CLIENT_IP'];<br>}<br>elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))<br>{<br>  $ip=$_SERVER['HTTP_X_FORWARDED_FOR'];<br>}<br>else<br>{<br>  $ip=$_SERVER['REMOTE_ADDR'];<br>}<br><br>//Time<br>$actual_time = time();<br>$actual_day = date('Y.m.d', $actual_time);<br>$actual_day_chart = date('d/m/y', $actual_time);<br>$actual_hour = date('H:i:s', $actual_time);<br><br>//GET Browser<br>$browser = $_SERVER['HTTP_USER_AGENT'];<br>    <br>//LOG<br>$myFile = "log.txt";<br>$fh = fopen($myFile, 'a+');<br>$stringData = $actual_day . ' ' . $actual_hour . ' ' . $ip . ' ' . $browser . ' ' . "\r\n";<br>fwrite($fh, $stringData);<br>fclose($fh);<br><br>//Generate Image (Es. dimesion is 1x1)<br>$newimage = ImageCreate(1,1);<br>$grigio = ImageColorAllocate($newimage,255,255,255);<br>ImageJPEG($newimage);<br>ImageDestroy($newimage);<br>    <br>?>
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二、从网页中提取关键字


一段伟大的代码片段能够轻松的从网页中提取关键字。


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 		 代码如下 		复制代码 	  
 	  
 		

$meta = get_meta_tags('http://www.emoticode.net/');<br>$keywords = $meta['keywords'];<br>// Split keywords<br>$keywords = explode(',', $keywords );<br>// Trim them<br>$keywords = array_map( 'trim', $keywords );<br>// Remove empty values<br>$keywords = array_filter( $keywords );<br><br>print_r( $keywords );
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三、查找页面上的所有链接


使用DOM，你可以轻松从任何页面上抓取链接，代码示例如下：


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 		 代码如下 		复制代码 	  
 	  
 		

$html = file_get_contents('http://www.php100.com');<br><br>$dom = new DOMDocument();<br>@$dom->loadHTML($html);<br><br>// grab all the on the page<br>$xpath = new DOMXPath($dom);<br>$hrefs = $xpath->evaluate("/html/body//a");<br><br>for ($i = 0; $i length; $i++) {<br>       $href = $hrefs->item($i);<br>       $url = $href->getAttribute('href');<br>       echo $url.'<br>';<br>}
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四、自动转换URL，跳转至超链接


在WordPress中，如果你想自动转换URL，跳转至超链接页面，你可以利用内置的函数make_clickable()执行此操作。如果你想基于WordPress之外操作该程序，那么你可以参考wp-includes/formatting.php源代码。


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 		 代码如下 		复制代码 	  
 	  
 		

function _make_url_clickable_cb($matches) {<br>    $ret = '';<br>    $url = $matches[2];<br> <br>    if ( empty($url) )<br>        return $matches[0];<br>    // removed trailing [.,;:] from URL<br>    if ( in_array(substr($url, -1), array('.', ',', ';', ':')) === true ) {<br>        $ret = substr($url, -1);<br>        $url = substr($url, 0, strlen($url)-1);<br>    }<br>    return $matches[1] . "<a href="%5C%22%24url%5C%22" rel='\"nofollow\"'>$url</a>" . $ret;<br>}<br> <br>function _make_web_ftp_clickable_cb($matches) {<br>    $ret = '';<br>    $dest = $matches[2];<br>    $dest = 'http://' . $dest;<br> <br>    if ( empty($dest) )<br>        return $matches[0];<br>    // removed trailing [,;:] from URL<br>    if ( in_array(substr($dest, -1), array('.', ',', ';', ':')) === true ) {<br>        $ret = substr($dest, -1);<br>        $dest = substr($dest, 0, strlen($dest)-1);<br>    }<br>    return $matches[1] . "<a href="%5C%22%24dest%5C%22" rel='\"nofollow\"'>$dest</a>" . $ret;<br>}<br> <br>function _make_email_clickable_cb($matches) {<br>    $email = $matches[2] . '@' . $matches[3];<br>    return $matches[1] . "<a href="%5C%22mailto:%24email%5C%22">$email</a>";<br>}<br> <br>function make_clickable($ret) {<br>    $ret = ' ' . $ret;<br>    // in testing, using arrays here was found to be faster<br>    $ret = preg_replace_callback('#([\s>])([\w]+?://[\w\\x80-\\xff\#$%&~/.\-;:=,?@\[\]+]*)#is', '_make_url_clickable_cb', $ret);<br>    $ret = preg_replace_callback('#([\s>])((www|ftp)\.[\w\\x80-\\xff\#$%&~/.\-;:=,?@\[\]+]*)#is', '_make_web_ftp_clickable_cb', $ret);<br>    $ret = preg_replace_callback('#([\s>])([.0-9a-z_+-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,})#i', '_make_email_clickable_cb', $ret);<br> <br>    // this one is not in an array because we need it to run last, for cleanup of accidental links within links<br>    $ret = preg_replace("#(<a>]+?>|>))</a><a>]+?>([^>]+?)</a>#i", "$1$3", $ret);<br>    $ret = trim($ret);<br>    return $ret;<br>}
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五、创建数据URL


数据URL可以直接嵌入到HTML/CSS/JS中，以节省大量的 HTTP请求。 下面的这段代码可利用$file轻松创建数据URL。


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 		 代码如下 		复制代码 	  
 	  
 		

function data_uri($file, $mime) {<br>  $contents=file_get_contents($file);<br>  $base64=base64_encode($contents);<br>  echo "data:$mime;base64,$base64";<br>}
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六、从服务器上下载&保存一个远程图片


当你在搭建网站时，从远程服务器下载某张图片并且将其保存在自己的服务器上，这一操作会经常用到。代码如下：


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 		 代码如下 		复制代码 	  
 	  
 		

$image = file_get_contents('http://www.php100.com/image.jpg');<br>file_put_contents('/images/image.jpg', $image);//Where to save the image
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七、移除Remove Microsoft Word HTML Tag


当你使用Microsoft Word会创建许多Tag，比如font，span，style，class等。这些标签对于Word本身而言是非常有用的，但是当你从Word粘贴至网页时，你会发现很多无用的Tag。因此，下面的这段代码可帮助你删除所有无用的Word HTML Tag。


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 		 代码如下 		复制代码 	  
 	  
 		

function cleanHTML($html) {<br>/// <summary><br>/// Removes all FONT and SPAN tags, and all Class and Style attributes.<br>/// Designed to get rid of non-standard Microsoft Word HTML tags.<br>/// </summary><br>// start by completely removing all unwanted tags<br><br>$html = ereg_replace("]*>","",$html);<br><br>// then run another pass over the html (twice), removing unwanted attributes<br><br>$html = ereg_replace("]*)(class|lang|style|size|face)=("[^"]*"|'[^']*'|[^>]+)([^>]*)>","",$html);<br>$html = ereg_replace("]*)(class|lang|style|size|face)=("[^"]*"|'[^']*'|[^>]+)([^>]*)>","",$html);<br><br>return $html<br>}
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八、检测浏览器语言


如果你的网站上有多种语言，那么可以使用这段代码作为默认的语言来检测浏览器语言。该段代码将返回浏览器客户端使用的初始语言。


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 		 代码如下 		复制代码 	  
 	  
 		

function get_client_language($availableLanguages, $default='en'){<br>    if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {<br>        $langs=explode(',',$_SERVER['HTTP_ACCEPT_LANGUAGE']);<br><br>        foreach ($langs as $value){<br>            $choice=substr($value,0,2);<br>            if(in_array($choice, $availableLanguages)){<br>                return $choice;<br>            }<br>        }<br>    }<br>    return $default;<br>}
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九、显示Facebook 粉丝数量


如果你的网站或者博客上有内链的Facebook页面，你或许想知道拥有多少粉丝。这段代码将帮助你查看Facebook粉丝数，记住，别忘了在你的页面ID第二行添加该段代码。


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 		 代码如下 		复制代码 	  
 	  
 		

<?php <br />    $page_id = "YOUR PAGE-ID";<br>    $xml = @simplexml_load_file("http://api.facebook.com/restserver.php?method=facebook.fql.query&query=SELECT%20fan_count%20FROM%20page%20WHERE%20page_id=".$page_id."") or die ("a lot");<br>    $fans = $xml->page->fan_count;<br>    echo $fans;<br>?>
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