? ? ? ? PHP是一種HTML內嵌式的語言，是一種在服務器端執行的嵌入HTML文檔的腳本語言。PHP擁有數以百計的基本功能，支持上千種擴展。這些功能都被很好的加載在PHP站點上，但內置的庫有各種各樣的命名。在PHP代碼庫中包含了無數個有用的PHP代碼片段，每位開發者都需要不斷完善自己的“工具箱”。有了這些代碼片段可以為你節省大量的時間，一起來看下。 1.查找Longitudes與Latitudes之間的距離
? | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | 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 |
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? 2.完善cURL功能 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | 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; } } |
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3.清理用戶輸入 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | ]*?>.*? @si ',?? // Strip out javascript '@<[\/\!]*?[^<>]*?> @si ',??????????? // Strip out HTML tags '@]*?>.*? @siU ',??? // Strip style tags properly '@@'???????? // Strip multi-line comments ); $output = preg_replace($search, '', $input); return?$output; } ?> $val) { $output[$var] = sanitize($val); } } else?{ if?(get_magic_quotes_gpc()) { $input = stripslashes($input); } $input? = cleanInput($input); $output = mysql_real_escape_string($input); } return?$output; } ?> |
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4.通過IP（城市、國家）檢測地理位置 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | function?detect_city($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; } } |
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5.設置密碼強度 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | 100){ $strength = 100; } return?$strength; } var_dump(password_strength("Correct Horse Battery Staple")); echo?" "; var_dump(password_strength("Super Monkey Ball")); echo?" "; var_dump(password_strength("Tr0ub4dor&3")); echo?" "; var_dump(password_strength("abc123")); echo?" "; var_dump(password_strength("sweet")); |
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6.檢測瀏覽器語言，只提供可用的$availableLanguages作為數組(‘en’, ‘de’, ‘es’) | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | function?get_client_language($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?$default; } |
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7.創建數據URL | 1 2 3 4 5 | function?data_uri($file, $mime) { $contents=file_get_contents($file); $base64=base64_encode($contents); echo?"data:$mime;base64,$base64"; } |
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8.創建更加友好的頁面標題SEO URL 輸入示例：$title = “This foo’s bar is rockin’ cool!”; echo makeseoname($title); //RETURNS: //this-foos-bar-is-rockin-cool | 1 2 3 | function?make_seo_name($title) { return?preg_replace('/[^a-z0-9_-]/i',?'', strtolower(str_replace(' ',?'-', trim($title)))); } |
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9.終極加密功能 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | // 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; } |
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10a.Tweeter Feed Runner——使用任意twitter名，可在任意頁面上加載用戶資源。 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | pversion; } 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; } } |
10b. Tweeter Feed Runner——用于在主題中創建文件，比如：example.php | 1 2 3 4 | loadTimeline("phpsnips")->getTweets(); foreach($feed as $time => $message){ echo?"<div class='tweet'>".$twitter->formatTweet($message)."<br />At: ".$time."</div>"; } |
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來源于：英文版：http://codegeekz.com/10-php-snippets-for-developers/ 中文版：http://www.phpchina.com/archives/view-43035-1.html |
