“博客迷”（BlogMi）源码阅读[1]
最近在学习PHP语言,想做一个博客程序.于是下载了一个博客程序的源码来研究.这个程序比较小巧,通过阅读可以快速掌握编写一个博客的方法.
阅读顺序是从第一个文件index.php开始.源码如下:
本文件的思路是：
１．包含核心文件:
require_once dirname(__FILE__).'/files/core.php';
核心文件包含了自定义的函数和全局变量.还有一个404页面函数.
2.通过正则表达式来确定请求类型.
3.根据请求的正文类型来进行查询.
require 'files/posts/index/publish.php';
4.查询完毕后通过模板进行输出.
if ($mc_get_type != 'rss') require 'files/theme/v/index.php';
else require 'files/rss.php';
1 <?php 2 require_once dirname(__FILE__).'/files/core.php'; 3 $mc_post_per_page = 2; 4 $qs = $_SERVER['QUERY_STRING']; 5 if (preg_match('|^post/([a-z0-5]{6})$|', $qs, $matches)) { 6 $mc_get_type = 'post'; 7 $mc_get_name = $matches[1]; 8 } 9 else if (preg_match('|^tag/([^/]+)/(\?page=([0-9]+)){0,1}$|', $qs, $matches)) { 10 $mc_get_type = 'tag'; 11 $mc_get_name = urldecode($matches[1]); 12 $mc_page_num = isset($matches[2]) ? $matches[3] : 1; 13 } 14 else if (preg_match('|^date/([0-9]{4}-[0-9]{2})/(\?page=([0-9]+)){0,1}$|', $qs, $matches)) { 15 $mc_get_type = 'date'; 16 $mc_get_name = urldecode($matches[1]); 17 $mc_page_num = isset($matches[2]) ? $matches[3] : 1; 18 } 19 else if (preg_match('|^archive/$|', $qs, $matches)) { 20 $mc_get_type = 'archive'; 21 } 22 else if ($qs == 'rss/') { 23 $mc_get_type = 'rss'; 24 $mc_get_name = ''; 25 $mc_page_num = isset($_GET['page']) ? $_GET['page'] : 1; 26 } 27 else if (preg_match('|^(([-a-zA-Z0-5]+/)+)$|', $qs, $matches)) { 28 $mc_get_type = 'page'; 29 $mc_get_name = substr($matches[1], 0, -1); 30 } else { 31 $mc_get_type = 'index'; 32 $mc_get_name = ''; 33 $mc_page_num = isset($_GET['page']) ? $_GET['page'] : 1; 34 } 35 if ($mc_get_type == 'post') { 36 require 'files/posts/index/publish.php'; 37 if (array_key_exists($mc_get_name, $mc_posts)) { 38 $mc_post_id = $mc_get_name; 39 $mc_post = $mc_posts[$mc_post_id]; 40 $mc_data = unserialize(file_get_contents('files/posts/data/'.$mc_post_id.'.dat')); 41 } 42 else { 43 mc_404(); 44 } 45 } 46 else if ($mc_get_type == 'tag') { 47 require 'files/posts/index/publish.php'; 48 $mc_post_ids = array_keys($mc_posts); 49 $mc_post_count = count($mc_post_ids); 50 $mc_tag_posts = array(); 51 for ($i = 0; $i < $mc_post_count; $i ++) { 52 $id = $mc_post_ids[$i]; 53 $post = $mc_posts[$id]; 54 if (in_array($mc_get_name, $post['tags'])) { 55 $mc_tag_posts[$id] = $post; 56 } 57 } 58 $mc_posts = $mc_tag_posts; 59 $mc_post_ids = array_keys($mc_posts); 60 $mc_post_count = count($mc_post_ids); 61 } 62 else if ($mc_get_type == 'date') { 63 require 'files/posts/index/publish.php'; 64 $mc_post_ids = array_keys($mc_posts); 65 $mc_post_count = count($mc_post_ids); 66 $mc_date_posts = array(); 67 for ($i = 0; $i < $mc_post_count; $i ++) { 68 $id = $mc_post_ids[$i]; 69 $post = $mc_posts[$id]; 70 if (strpos($post['date'], $mc_get_name) === 0) { 71 $mc_date_posts[$id] = $post; 72 } 73 } 74 $mc_posts = $mc_date_posts; 75 $mc_post_ids = array_keys($mc_posts); 76 $mc_post_count = count($mc_post_ids); 77 } 78 else if ($mc_get_type == 'archive') { 79 require 'files/posts/index/publish.php'; 80 $mc_post_ids = array_keys($mc_posts); 81 $mc_post_count = count($mc_post_ids); 82 $tags_array = array(); 83 $date_array = array(); 84 for ($i = 0; $i < $mc_post_count; $i ++) { 85 $post_id = $mc_post_ids[$i]; 86 $post = $mc_posts[$post_id]; 87 $date_array[] = substr($post['date'], 0, 7); 88 $tags_array = array_merge($tags_array, $post['tags']); 89 } 90 $mc_tags = array_values(array_unique($tags_array)); 91 $mc_dates = array_values(array_unique($date_array)); 92 } 93 else if ($mc_get_type == 'page') { 94 require 'files/pages/index/publish.php'; 95 if (array_key_exists($mc_get_name, $mc_pages)) { 96 $mc_post_id = $mc_get_name; 97 $mc_post = $mc_pages[$mc_post_id]; 98 $mc_data = unserialize(file_get_contents('files/pages/data/'.$mc_post['file'].'.dat')); 99 } 100 else { 101 mc_404(); 102 } 103 } 104 else { 105 require 'files/posts/index/publish.php'; 106 $mc_post_ids = array_keys($mc_posts); 107 $mc_post_count = count($mc_post_ids); 108 } 109 if ($mc_get_type != 'rss') 110 require 'files/theme/v/index.php'; 111 else 112 require 'files/rss.php'; 113 ?>
