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Web开发者必备的10个救命的PHP代码片段_PHP教程

程序员文章站 2024-01-29 18:55:52
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[代码] 关键词高亮

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

[代码] 获取你的Feedburner的用户


  1. function get_average_readers($feed_id,$interval = 7){  
  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. $nb = 0;
  13. foreach($xml->feed->children() as $circ){
  14. $nb += $circ['circulation'];
  15. }
  16. return round($nb/$interval);
  17. }

[代码] 自动生成密码


  1. function generatePassword($length=9, $strength=0) {  
  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. $password = '';
  17. $alt = time() % 2;
  18. for ($i = 0; $i $length; $i++) {
  19. if ($alt == 1) {
  20. $password .= $consonants[(rand() % strlen($consonants))];
  21. $alt = 0;
  22. } else {
  23. $password .= $vowels[(rand() % strlen($vowels))];
  24. $alt = 1;
  25. }
  26. }
  27. return $password;
  28. }

[代码] 压缩多个CSS文件


  1. header('Content-type: text/css');  
  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. /* your css files */
  11. include('master.css');
  12. include('typography.css');
  13. include('grid.css');
  14. include('print.css');
  15. include('handheld.css');
  16. ob_end_flush();

[代码] 获取短网址


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

[代码] 根据生日计算年龄


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

[代码] 计算执行时间


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

[代码] PHP的维护模式


  1. function maintenance($mode = FALSE){  
  2. if($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. }
  13. }

[代码] 阻止CSS样式被缓存


  1. 
    "/stylesheet.css?" rel="stylesheet" type="text/css" /&glt; href=

[代码] 为数字增加 stndrd 等


  1. function make_ranked($rank) {  
  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. if( $last == 1 && $seclast == 1) $ext = 'th';
  9. if( $last == 2 && $seclast == 1) $ext = 'th';
  10. if( $last == 3 && $seclast == 1) $ext = 'th';
  11. return $rank.$ext;
  12. }

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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...