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。
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 $contents; } |
一、查看邮件是否已被阅读
当你在发送邮件时,你或许很想知道该邮件是否被对方已阅读。这里有段非常有趣的代码片段能够显示对方IP地址记录阅读的实际日期和时间。
代码如下 | 复制代码 |
<br>error_reporting(0);<br>Header("Content-Type: image/jpeg");<br><br>//Get IP<br>if (!empty($_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>?> Salin selepas log masuk |
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。
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 ); Salin selepas log masuk |
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:
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 $url.'<br>';<br>} Salin selepas log masuk |
四、自动转换URL,跳转至超链接
在WordPress中,如果你想自动转换URL,跳转至超链接页面,你可以利用内置的函数make_clickable()执行此操作。如果你想基于WordPress之外操作该程序,那么你可以参考wp-includes/formatting.php源代码。
代码如下 | 复制代码 |
function _make_url_clickable_cb($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 $ret;<br>} Salin selepas log masuk |
五、创建数据URL
数据URL可以直接嵌入到HTML/CSS/JS中,以节省大量的 HTTP请求。 下面的这段代码可利用$file轻松创建数据URL。
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>} Salin selepas log masuk |
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:
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', $image);//Where to save the image Salin selepas log masuk |
七、移除Remove Microsoft Word HTML Tag
当你使用Microsoft Word会创建许多Tag,比如font,span,style,class等。这些标签对于Word本身而言是非常有用的,但是当你从Word粘贴至网页时,你会发现很多无用的Tag。因此,下面的这段代码可帮助你删除所有无用的Word HTML Tag。
代码如下 | 复制代码 |
function cleanHTML($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 $html<br>} Salin selepas log masuk |
八、检测浏览器语言
如果你的网站上有多种语言,那么可以使用这段代码作为默认的语言来检测浏览器语言。该段代码将返回浏览器客户端使用的初始语言。
代码如下 | 复制代码 |
function get_client_language($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>} Salin selepas log masuk |
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。
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>?> Salin selepas log masuk |