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）
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。
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| 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; } |
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2) Text messaging with PHP using the TextMagic API ——使用TextMagic API 获取PHP Test信息
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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 = $router->send('Wake up!', array(9991234567), true); // result: Result is: Array ( [messages] => Array ( [19896128] => 9991234567 ) [sent_text] => Wake up! [parts_count] => 1 ) |
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3) Get info about your memory usage——获取内存使用率
这段代码帮助你获取内存使用率。
| 代码如下 | 复制代码 |
| echo "Initial: ".memory_get_usage()." bytes n"; /* prints Initial: 361400 bytes */ // let's use up some memory for ($i = 0; $i $array []= md5($i); } // let's remove half of the array for ($i = 0; $i unset($array[$i]); } echo "Final: ".memory_get_usage()." bytes n"; /* prints Final: 885912 bytes */ echo "Peak: ".memory_get_peak_usage()." bytes n"; /* prints Peak: 13687072 bytes */ |
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4) Display source code of any webpage——查看任意网页源代码
如果你想查看网页源代码，那么只需更改第二行的URL，源代码就会在网页上显示出。
| 代码如下 | 复制代码 |
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$line) { // loop thru each line and prepend line numbers echo "Line #{$line_num} : " . htmlspecialchars($line) . " n"; } |
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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"; } |
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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 $default; } } |
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7) Detect browser language——查看浏览器语言
检测浏览器使用的代码脚本语言。
| 代码如下 | 复制代码 |
| function get_client_language($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 $default; } |
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8) Check if server is HTTPS——检测服务器是否是HTTPS
| 代码如下 | 复制代码 |
| if ($_SERVER['HTTPS'] != "on") { echo "This is not HTTPS"; }else{ echo "This is HTTPS"; } |
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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 $contents; } |
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一、查看邮件是否已被阅读
当你在发送邮件时，你或许很想知道该邮件是否被对方已阅读。这里有段非常有趣的代码片段能够显示对方IP地址记录阅读的实际日期和时间。
<table width="620" cellspacing="1" cellpadding="1" border="0" align="center" style="background:#FB7"> <tbody><tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" bgcolor="#FFE7CE" align="center" style="cursor:pointer;" onClick="doCopy('copy8684')">复制代码</td> </tr> <tr> <td valign="top" height="auto" bgcolor="#FFFFFF" colspan="2" style="padding:10px;" class="copyclass" id="copy8684"><pre class="brush:php;toolbar:false;"><?<br />error_reporting(0);<br />Header("Content-Type: image/jpeg");<br /><br />//Get IP<br />if (!empty($_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 . ' ' . $browser . ' ' . "
";<br />fwrite($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($newimage);<br /> <br />?>二、从网页中提取关键字
一段伟大的代码片段能够轻松的从网页中提取关键字。
<table width="620" cellspacing="1" cellpadding="1" border="0" align="center" style="background:#FB7"> <tbody><tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" bgcolor="#FFE7CE" align="center" style="cursor:pointer;" onClick="doCopy('copy6747')">复制代码</td> </tr> <tr> <td valign="top" height="auto" bgcolor="#FFFFFF" colspan="2" style="padding:10px;" class="copyclass" id="copy6747"><pre class="brush:php;toolbar:false;">$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( $keywords );三、查找页面上的所有链接
使用DOM，你可以轻松从任何页面上抓取链接，代码示例如下：
<table width="620" cellspacing="1" cellpadding="1" border="0" align="center" style="background:#FB7"> <tbody><tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" bgcolor="#FFE7CE" align="center" style="cursor:pointer;" onClick="doCopy('copy4902')">复制代码</td> </tr> <tr> <td valign="top" height="auto" bgcolor="#FFFFFF" colspan="2" style="padding:10px;" class="copyclass" id="copy4902"><pre class="brush:php;toolbar:false;">$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 < $hrefs->length; $i++) {<br /> $href = $hrefs->item($i);<br /> $url = $href->getAttribute('href');<br /> echo $url.'<br />';<br />}四、自动转换URL，跳转至超链接
在WordPress中，如果你想自动转换URL，跳转至超链接页面，你可以利用内置的函数make_clickable()执行此操作。如果你想基于WordPress之外操作该程序，那么你可以参考wp-includes/formatting.php源代码。
<table width="620" cellspacing="1" cellpadding="1" border="0" align="center" style="background:#FB7"> <tbody><tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" bgcolor="#FFE7CE" align="center" style="cursor:pointer;" onClick="doCopy('copy1760')">复制代码</td> </tr> <tr> <td valign="top" height="auto" bgcolor="#FFFFFF" colspan="2" style="padding:10px;" class="copyclass" id="copy1760"><pre class="brush:php;toolbar:false;">function _make_url_clickable_cb($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 $matches[1] . "<a href="$url" 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 $matches[1] . "<a href="$dest" rel="nofollow">$dest</a>" . $ret;<br />}<br /> <br />function _make_email_clickable_cb($matches) {<br /> $email = $matches[2] . '@' . $matches[3];<br /> return $matches[1] . "<a href="mailto:$email">$email</a>";<br />}<br /> <br />function make_clickable($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</a>", $ret);<br /> $ret = trim($ret);<br /> return $ret;<br />}五、创建数据URL
数据URL可以直接嵌入到HTML/CSS/JS中，以节省大量的 HTTP请求。 下面的这段代码可利用$file轻松创建数据URL。
<table width="620" cellspacing="1" cellpadding="1" border="0" align="center" style="background:#FB7"> <tbody><tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" bgcolor="#FFE7CE" align="center" style="cursor:pointer;" onClick="doCopy('copy3075')">复制代码</td> </tr> <tr> <td valign="top" height="auto" bgcolor="#FFFFFF" colspan="2" style="padding:10px;" class="copyclass" id="copy3075"><pre class="brush:php;toolbar:false;">function data_uri($file, $mime) {<br /> $contents=file_get_contents($file);<br /> $base64=base64_encode($contents);<br /> echo "data:$mime;base64,$base64";<br />}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：
<table width="620" cellspacing="1" cellpadding="1" border="0" align="center" style="background:#FB7"> <tbody><tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" bgcolor="#FFE7CE" align="center" style="cursor:pointer;" onClick="doCopy('copy5763')">复制代码</td> </tr> <tr> <td valign="top" height="auto" bgcolor="#FFFFFF" colspan="2" style="padding:10px;" class="copyclass" id="copy5763"><pre class="brush:php;toolbar:false;">$image = file_get_contents('http://www.php100.com/image.jpg');<br />file_put_contents('/images/image.jpg', $image);//Where to save the image七、移除Remove Microsoft Word HTML Tag
当你使用Microsoft Word会创建许多Tag，比如font，span，style，class等。这些标签对于Word本身而言是非常有用的，但是当你从Word粘贴至网页时，你会发现很多无用的Tag。因此，下面的这段代码可帮助你删除所有无用的Word HTML Tag。
<table width="620" cellspacing="1" cellpadding="1" border="0" align="center" style="background:#FB7"> <tbody><tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" bgcolor="#FFE7CE" align="center" style="cursor:pointer;" onClick="doCopy('copy8619')">复制代码</td> </tr> <tr> <td valign="top" height="auto" bgcolor="#FFFFFF" colspan="2" style="padding:10px;" class="copyclass" id="copy8619"><pre class="brush:php;toolbar:false;">function cleanHTML($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 />$html = ereg_replace("<(/)?(font|span|del|ins)[^>]*>","",$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 $html<br />}八、检测浏览器语言
如果你的网站上有多种语言，那么可以使用这段代码作为默认的语言来检测浏览器语言。该段代码将返回浏览器客户端使用的初始语言。
<table width="620" cellspacing="1" cellpadding="1" border="0" align="center" style="background:#FB7"> <tbody><tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" bgcolor="#FFE7CE" align="center" style="cursor:pointer;" onClick="doCopy('copy5083')">复制代码</td> </tr> <tr> <td valign="top" height="auto" bgcolor="#FFFFFF" colspan="2" style="padding:10px;" class="copyclass" id="copy5083"><pre class="brush:php;toolbar:false;">function get_client_language($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 />}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。
<table width="620" cellspacing="1" cellpadding="1" border="0" align="center" style="background:#FB7"> <tbody><tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" bgcolor="#FFE7CE" align="center" style="cursor:pointer;" onClick="doCopy('copy2294')">复制代码</td> </tr> <tr> <td valign="top" height="auto" bgcolor="#FFFFFF" colspan="2" style="padding:10px;" class="copyclass" id="copy2294"><pre class="brush:php;toolbar:false;"><?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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