归档

2022-06-13 23:37:17 +08:00
parent d21608a860
commit 0230cb42a2
153 changed files with 62907 additions and 0 deletions
--- a/includes/lib/Cache.php
+++ b/includes/lib/Cache.php
@@ -0,0 +1,47 @@
+<?php
+namespace lib;
+/**
+ * 缓存信息（注释待完善）
+ */
+class Cache {
+    public function get($key) {
+        global $_CACHE;
+        return $_CACHE[$key];
+    }
+    public function read($key = 'config') {
+        global $DB;
+        $value = $DB->getColumn("SELECT v FROM pre_cache WHERE k=:key LIMIT 1", [':key'=>$key]);
+        return $value;
+    }
+    public function save($key ,$value, $expire=0) {
+        if (is_array($value)) $value = serialize($value);
+        global $DB;
+        return $DB->exec("REPLACE INTO pre_cache VALUES (:key, :value, :expire)", [':key'=>$key, ':value'=>$value, ':expire'=>$expire]);
+    }
+    public function pre_fetch(){
+        global $_CACHE;
+        $_CACHE=array();
+        $cache = $this->read('config');
+        $_CACHE = @unserialize($cache);
+        if(empty($_CACHE['version']))$_CACHE = $this->update();
+        return $_CACHE;
+    }
+    public function update() {
+        global $DB;
+        $cache = array();
+        $result = $DB->getAll("SELECT * FROM pre_config");
+        foreach($result as $row){
+            $cache[ $row['k'] ] = $row['v'];
+        }
+        $this->save('config', $cache);
+        return $cache;
+    }
+    public function clear($key = 'config') {
+        global $DB;
+        return $DB->exec("UPDATE pre_cache SET v='' WHERE k=:key", [':key'=>$key]);
+    }
+    public function clean() {
+        global $DB;
+        return $DB->exec("DELETE FROM pre_cache WHERE expire>0 AND expire<'".time()."'");
+    }
+}