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Web开发者必备的10个救命的PHP代码片段_PHP教程

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互联网集市收集整理的这篇技术教程文章主要介绍了Web开发者必备的10个救命的PHP代码片段_PHP教程，小编现在分享给大家，供广大互联网技能从业者学习和参考。文章包含3898字，纯文字阅读大概需要6分钟。

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[代码] 关键词高亮 


    

  1. 

    function highlight($sString, $aWords) {  
    

    2. 

  2.     if (!is_array ($aWords) || emptyempty ($aWords) || !is_string ($sString)) {  
    3. 

  3.         return false;  
    4. 

  4.     }  
    5. 

  5.  
    6. 

  6.     $sWords = implode ('|', $aWords);  
    7. 

  7.     return preg_replace ('@b('.$sWords.')b@si', '$1', $sString);  
    8. 

  8. } 
    9. 



[代码] 获取你的Feedburner的用户




    

  1. 

    function get_average_readers($feed_id,$interval = 7){  
    

    2. 

  2.     $today = date('Y-m-d', strtotime("now"));  
    3. 

  3.     $ago = date('Y-m-d', strtotime("-".$interval." days"));  
    4. 

  4.     $feed_url="https://feedburner.google.com/api/awareness/1.0/GetFeedData?uri=".$feed_id."&dates=".$ago.",".$today;  
    5. 

  5.     $ch = curl_init();  
    6. 

  6.     curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);  
    7. 

  7.     curl_setopt($ch, CURLOPT_URL, $feed_url);  
    8. 

  8.     $data = curl_exec($ch);  
    9. 

  9.     curl_close($ch);  
    10. 

  10.     $xml = new SimpleXMLElement($data);  
    11. 

  11.     $fb = $xml->feed->entry['circulation'];  
    12. 

  12.  
    13. 

  13.     $nb = 0;  
    14. 

  14.     foreach($xml->feed->children() as $circ){  
    15. 

  15.         $nb += $circ['circulation'];  
    16. 

  16.     }  
    17. 

  17.  
    18. 

  18.     return round($nb/$interval);  
    19. 

  19. } 
    20. 



[代码] 自动生成密码




    

  1. 

    function generatePassword($length=9, $strength=0) {  
    

    2. 

  2.     $vowels = 'aeuy';  
    3. 

  3.     $consonants = 'bdghjmnpqrstvz';  
    4. 

  4.     if ($strength >= 1) {  
    5. 

  5.         $consonants .= 'BDGHJLMNPQRSTVWXZ';  
    6. 

  6.     }  
    7. 

  7.     if ($strength >= 2) {  
    8. 

  8.         $vowels .= "AEUY";  
    9. 

  9.     }  
    10. 

  10.     if ($strength >= 4) {  
    11. 

  11.         $consonants .= '23456789';  
    12. 

  12.     }  
    13. 

  13.     if ($strength >= 8 ) {  
    14. 

  14.         $vowels .= '@#$%';  
    15. 

  15.     }  
    16. 

  16.  
    17. 

  17.     $password = '';  
    18. 

  18.     $alt = time() % 2;  
    19. 

  19.     for ($i = 0; $i < $length; $i++) {  
    20. 

  20.         if ($alt == 1) {  
    21. 

  21.             $password .= $consonants[(rand() % strlen($consonants))];  
    22. 

  22.             $alt = 0;  
    23. 

  23.         } else {  
    24. 

  24.             $password .= $vowels[(rand() % strlen($vowels))];  
    25. 

  25.             $alt = 1;  
    26. 

  26.         }  
    27. 

  27.     }  
    28. 

  28.     return $password;  
    29. 

  29. } 
    30. 



[代码] 压缩多个CSS文件




    

  1. 

    header('Content-type: text/css');  
    

    2. 

  2. ob_start("compress");  
    3. 

  3. function compress($buffer) {  
    4. 

  4.   /* remove comments */ 
    5. 

  5.   $buffer = preg_replace('!/*[^*]**+([^/][^*]**+)*/!', '', $buffer);  
    6. 

  6.   /* remove tabs, spaces, newlines, etc. */ 
    7. 

  7.   $buffer = str_replace(array("rn", "r", "n", "t", '  ', '    ', '    '), '', $buffer);  
    8. 

  8.   return $buffer;  
    9. 

  9. }  
    10. 

  10.  
    11. 

  11. /* your css files */ 
    12. 

  12. include('master.css');  
    13. 

  13. include('typography.css');  
    14. 

  14. include('grid.css');  
    15. 

  15. include('print.css');  
    16. 

  16. include('handheld.css');  
    17. 

  17.  
    18. 

  18. ob_end_flush(); 
    19. 



[代码] 获取短网址




    

  1. 

    function getTinyUrl($url) {  
    

    2. 

  2.     return file_get_contents("http://tinyurl.com/api-create.php?url=".$url);  
    3. 

  3. } 
    4. 



[代码] 根据生日计算年龄




    

  1. 

    function age($date){  
    

    2. 

  2.     $year_diff = '';  
    3. 

  3.     $time = strtotime($date);  
    4. 

  4.     if(FALSE === $time){  
    5. 

  5.         return '';  
    6. 

  6.     }  
    7. 

  7.  
    8. 

  8.     $date = date('Y-m-d', $time);  
    9. 

  9.     list($year,$month,$day) = explode("-",$date);  
    10. 

  10.     $year_diff = date("Y") – $year;  
    11. 

  11.     $month_diff = date("m") – $month;  
    12. 

  12.     $day_diff = date("d") – $day;  
    13. 

  13.     if ($day_diff < 0 || $month_diff < 0) $year_diff–;  
    14. 

  14.  
    15. 

  15.     return $year_diff;  
    16. 

  16. } 
    17. 



[代码] 计算执行时间




    

  1. 

    //Create a variable for start time  
    

    2. 

  2. $time_start = microtime(true);  
    3. 

  3.  
    4. 

  4. // Place your PHP/HTML/JavaScript/CSS/Etc. Here  
    5. 

  5.  
    6. 

  6. //Create a variable for end time  
    7. 

  7. $time_end = microtime(true);  
    8. 

  8. //Subtract the two times to get seconds  
    9. 

  9. $time = $time_end - $time_start;  
    10. 

  10.  
    11. 

  11. echo 'Script took '.$time.' seconds to execute'; 
    12. 



[代码] PHP的维护模式




    

  1. 

    function maintenance($mode = FALSE){  
    

    2. 

  2.     if($mode){  
    3. 

  3.         if(basename($_SERVER['SCRIPT_FILENAME']) != 'maintenance.php'){  
    4. 

  4.             header("Location: http://example.com/maintenance.php");  
    5. 

  5.             exit;  
    6. 

  6.         }  
    7. 

  7.     }else{  
    8. 

  8.         if(basename($_SERVER['SCRIPT_FILENAME']) == 'maintenance.php'){  
    9. 

  9.             header("Location: http://example.com/");  
    10. 

  10.             exit;  
    11. 

  11.         }  
    12. 

  12.     }  
    13. 

  13. } 
    14. 



[代码] 阻止CSS样式被缓存




    

  1. 

    "/stylesheet.css?" rel="stylesheet" type="text/css" /&glt; </link href=<>
    

    2. 




[代码] 为数字增加 stndrd 等




    

  1. 

    function make_ranked($rank) {  
    

    2. 

  2.     $last = substr( $rank, -1 );  
    3. 

  3.     $seclast = substr( $rank, -2, -1 );  
    4. 

  4.     if( $last > 3 || $last == 0 ) $ext = 'th';  
    5. 

  5.     else if( $last == 3 ) $ext = 'rd';  
    6. 

  6.     else if( $last == 2 ) $ext = 'nd';  
    7. 

  7.     else $ext = 'st';   
    8. 

  8.  
    9. 

  9.     if( $last == 1 && $seclast == 1) $ext = 'th';  
    10. 

  10.     if( $last == 2 && $seclast == 1) $ext = 'th';  
    11. 

  11.     if( $last == 3 && $seclast == 1) $ext = 'th';   
    12. 

  12.  
    13. 

  13.     return $rank.$ext;  
    14. 

  14. } 
    15. 



 

	

	

www.bkjia.comtruehttp://www.bkjia.com/PHPjc/445722.htmlTechArticle[代码] 关键词高亮 function highlight( $sString , $aWords ){ if (! is_array ( $aWords )|| empty empty ( $aWords )||! is_string ( $sString )){ return false; } $sWords =implode...




           
                
                                                

                
                
                
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