10个超级有用的PHP代码片段果断收藏

时间：2022-09-24 22:33:58

本文小编将为你奉上10个超级有用的PHP代码片段。

10个超级有用的PHP代码片段果断收藏

1.查找Longitudes与Latitudes之间的距离

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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

2.完善cURL功能

 

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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;
 }
}

3.清理用户输入

 

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]*?>.*?@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;
}
?>

4.通过IP（城市、国家）检测地理位置

 

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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; } }

5.设置密码强度

 

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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"));

6.检测浏览器语言，只提供可用的$availableLanguages作为数组(‘en', ‘de', ‘es')

 

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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;
}

7.创建数据URL

 

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function data_uri($file, $mime) {
 $contents=file_get_contents($file);
 $base64=base64_encode($contents);
 echo "data:$mime;base64,$base64";
}

8.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

 

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function make_seo_name($title) {
 return preg_replace('/[^a-z0-9_-]/i', '', strtolower(str_replace(' ', '-', trim($title))));
}

9.终极加密功能

 

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// 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;
}

10a.Tweeter Feed Runner——使用任意twitter名，可在任意页面上加载用户资源。

 

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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——用于在主题中创建文件，比如：example.php

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loadTimeline("phpsnips")->getTweets();
foreach($feed as $time => $message){
 echo "<div class='tweet'>".$twitter->formatTweet($message)."<br />At: ".$time."</div>";
}

 

直接拿来用，10个PHP代码片段，还犹豫什么，果断收藏吧

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