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Web开发者必备的10个救命的PHP代码片段

WBOY
Release: 2016-06-13 11:14:17
Original
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[代码] 关键词高亮

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  1. <span><span class="keyword">function</span><span> highlight(</span><span class="vars">$sString</span><span>, </span><span class="vars">$aWords</span><span>) {  </span></span>
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  2.     if (!is_array ($aWords) || emptyempty ($aWords) || !is_string ($sString)) {  
  3.         return false;  
  4.     }  
  5.  
  6.     $sWords = implode ('|'$aWords);  
  7.     return preg_replace ('@b('.$sWords.')b@si''$1'$sString);  

[代码] 获取你的Feedburner的用户

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  1. <span><span class="keyword">function</span><span> get_average_readers(</span><span class="vars">$feed_id</span><span>,</span><span class="vars">$interval</span><span> = 7){  </span></span>
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  2.     $today = date('Y-m-d'strtotime("now"));  
  3.     $ago = date('Y-m-d'strtotime("-".$interval." days"));  
  4.     $feed_url="https://feedburner.google.com/api/awareness/1.0/GetFeedData?uri=".$feed_id."&dates=".$ago.",".$today;  
  5.     $ch = curl_init();  
  6.     curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);  
  7.     curl_setopt($ch, CURLOPT_URL, $feed_url);  
  8.     $data = curl_exec($ch);  
  9.     curl_close($ch);  
  10.     $xml = new SimpleXMLElement($data);  
  11.     $fb = $xml->feed->entry['circulation'];  
  12.  
  13.     $nb = 0;  
  14.     foreach($xml->feed->children() as $circ){  
  15.         $nb += $circ['circulation'];  
  16.     }  
  17.  
  18.     return round($nb/$interval);  

[代码] 自动生成密码

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  1. <span><span class="keyword">function</span><span> generatePassword(</span><span class="vars">$length</span><span>=9, </span><span class="vars">$strength</span><span>=0) {  </span></span>
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  2.     $vowels = 'aeuy';  
  3.     $consonants = 'bdghjmnpqrstvz';  
  4.     if ($strength >= 1) {  
  5.         $consonants .= 'BDGHJLMNPQRSTVWXZ';  
  6.     }  
  7.     if ($strength >= 2) {  
  8.         $vowels .= "AEUY";  
  9.     }  
  10.     if ($strength >= 4) {  
  11.         $consonants .= '23456789';  
  12.     }  
  13.     if ($strength >= 8 ) {  
  14.         $vowels .= '@#$%';  
  15.     }  
  16.  
  17.     $password = '';  
  18.     $alt = time() % 2;  
  19.     for ($i = 0; $i $length$i++) {  
  20.         if ($alt == 1) {  
  21.             $password .= $consonants[(rand() % strlen($consonants))];  
  22.             $alt = 0;  
  23.         } else {  
  24.             $password .= $vowels[(rand() % strlen($vowels))];  
  25.             $alt = 1;  
  26.         }  
  27.     }  
  28.     return $password;  

[代码] 压缩多个CSS文件

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  1. <span><span>header(</span><span class="string">'Content-type: text/css'</span><span>);  </span></span>
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  2. ob_start("compress");  
  3. function compress($buffer) {  
  4.   /* remove comments */ 
  5.   $buffer = preg_replace('!/*[^*]**+([^/][^*]**+)*/!'''$buffer);  
  6.   /* remove tabs, spaces, newlines, etc. */ 
  7.   $buffer = str_replace(array("rn""r""n""t"'  ''    ''    '), ''$buffer);  
  8.   return $buffer;  
  9. }  
  10.  
  11. /* your css files */ 
  12. include('master.css');  
  13. include('typography.css');  
  14. include('grid.css');  
  15. include('print.css');  
  16. include('handheld.css');  
  17.  
  18. ob_end_flush(); 

[代码] 获取短网址

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  1. <span><span class="keyword">function</span><span> getTinyUrl(</span><span class="vars">$url</span><span>) {  </span></span>
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  2.     return file_get_contents("http://tinyurl.com/api-create.php?url=".$url);  

[代码] 根据生日计算年龄

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  1. <span><span class="keyword">function</span><span> age(</span><span class="vars">$date</span><span>){  </span></span>
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  2.     $year_diff = '';  
  3.     $time = strtotime($date);  
  4.     if(FALSE === $time){  
  5.         return '';  
  6.     }  
  7.  
  8.     $date = date('Y-m-d'$time);  
  9.     list($year,$month,$day) = explode("-",$date);  
  10.     $year_diff = date("Y") – $year;  
  11.     $month_diff = date("m") – $month;  
  12.     $day_diff = date("d") – $day;  
  13.     if ($day_diff $month_diff $year_diff–;  
  14.  
  15.     return $year_diff;  

[代码] 计算执行时间

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  1. <span><span class="comment">//Create a variable for start time </span><span> </span></span>
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  2. $time_start = microtime(true);  
  3.  
  4. // Place your PHP/HTML/JavaScript/CSS/Etc. Here  
  5.  
  6. //Create a variable for end time  
  7. $time_end = microtime(true);  
  8. //Subtract the two times to get seconds  
  9. $time = $time_end - $time_start;  
  10.  
  11. echo 'Script took '.$time.' seconds to execute'

[代码] PHP的维护模式

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  1. <span><span class="keyword">function</span><span> maintenance(</span><span class="vars">$mode</span><span> = FALSE){  </span></span>
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  2.     if($mode){  
  3.         if(basename($_SERVER['SCRIPT_FILENAME']) != 'maintenance.php'){  
  4.             header("Location: http://example.com/maintenance.php");  
  5.             exit;  
  6.         }  
  7.     }else{  
  8.         if(basename($_SERVER['SCRIPT_FILENAME']) == 'maintenance.php'){  
  9.             header("Location: http://example.com/");  
  10.             exit;  
  11.         }  
  12.     }  

[代码] 阻止CSS样式被缓存

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  1. <span><span><link span="">
    <span class="string">"/stylesheet.css?<!--?php echo time(); ?-->"</span><span> rel=</span><span class="string">"stylesheet"</span><span> type=</span><span class="string">"text/css"</span><span> /&glt; </span> href=</span></span>
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[代码] 为数字增加 stndrd 等

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  1. <span><span class="keyword">function</span><span> make_ranked(</span><span class="vars">$rank</span><span>) {  </span></span>
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  2.     $last = substr$rank, -1 );  
  3.     $seclast = substr$rank, -2, -1 );  
  4.     if$last > 3 || $last == 0 ) $ext = 'th';  
  5.     else if$last == 3 ) $ext = 'rd';  
  6.     else if$last == 2 ) $ext = 'nd';  
  7.     else $ext = 'st';   
  8.  
  9.     if$last == 1 && $seclast == 1) $ext = 'th';  
  10.     if$last == 2 && $seclast == 1) $ext = 'th';  
  11.     if$last == 3 && $seclast == 1) $ext = 'th';   
  12.  
  13.     return $rank.$ext;  

 

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