moved project to Github

Rundiz · Oct 12, 2015 · 8dce6fe · 8dce6fe
1 parent ab17201
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diff --git a/okvcache.php b/okvcache.php
@@ -0,0 +1,112 @@
+<?php
+/**
+ * okvCache is php file caching.
+ *
+ * @license GPL v.3
+ * @author vee w.
+ * @link http://www.okvee.net 
+ */
+
+
+class okvcache {
+
+
+	public $cache_path;
+
+
+	function __construct() {
+		// set cache path
+		$this->cache_path = dirname(__FILE__).'/cache/';
+		// check if folder is not exists.
+		if ( !file_exists( $this->cache_path ) ) {
+			mkdir( $this->cache_path );
+		}
+	}// __construct
+
+
+	/**
+	 * clear all cache
+	 * @return boolean 
+	 */
+	function clear() {
+		$scd = scandir( $this->cache_path );
+		if ( is_array( $scd ) ) {
+			foreach ( $scd as $file ) {
+				if ( $file != '.' && $file != '..' && $file != 'index.html' && $file != '.htaccess' ) {
+					unlink( $this->cache_path.$file );
+				}
+			}
+			return true;
+		}
+		return false;
+	}// clean
+
+
+	/**
+	 * delete a single cache
+	 * @param string $id
+	 * @return boolean 
+	 */
+	function delete( $id = '' ) {
+		if ( file_exists( $this->cache_path.md5( $id ) ) ) {
+			unlink( $this->cache_path.md5( $id ) );
+		}
+		return true;
+	}// delete
+
+
+	/**
+	 * get cached
+	 * @param string $id
+	 * @return boolean 
+	 */
+	function get( $id = '' ) {
+		// check file exists
+		if ( !file_exists( $this->cache_path.md5( $id ) ) ) {
+			return false;
+		}
+		// open cached
+		$fp = fopen( $this->cache_path.md5( $id ), 'r' );
+		if ( $fp === false ) {
+			// no cached, something error like permission error
+			return false;
+		}
+		$content = fread( $fp, filesize( $this->cache_path.md5( $id ) ) );
+		fclose( $fp );
+		// unserialize values
+		$content = unserialize( $content );
+		if ( !isset( $content['data'] ) && !isset( $content['cache_expire'] ) ) {
+			return false;
+		}
+		// check expire cache?
+		$file_date = filemtime( $this->cache_path.md5( $id ) );
+		$now = time();
+		if ( ( $now-$file_date ) > $content['cache_expire'] ) {
+			// expired
+			$this->delete( $id );
+			return false;
+		}
+		//
+		return $content['data'];
+	}// get
+
+
+	/**
+	 * save cache
+	 * @param string $id
+	 * @param mixed $data
+	 * @param integer $ttl
+	 * @return boolean 
+	 */
+	function save( $id = '', $data = '', $ttl = 60 ) {
+		$fp = fopen( $this->cache_path.md5( $id ), 'w+' );
+		fwrite( $fp, serialize( array( 'data' => $data, 'cache_expire' => $ttl ) ) );
+		fclose( $fp );
+		return true;
+	}// save
+
+
+}
+
+
+?>
diff --git a/test.php b/test.php
@@ -0,0 +1,143 @@
+<!DOCTYPE html>
+<html>
+	<head>
+		<meta charset="utf-8" />
+		<title>test okvCache</title>
+	</head>
+
+	<body>
+
+
+<?php
+/**
+ * ตัวอย่างการใช้งานในรูปแบบต่างๆ
+ * 
+ * @license GPL v.3
+ * @author vee w.
+ * @link http://www.okvee.net 
+ * 
+ * การใช้งาน
+ * include ( 'okvcache.php' ); ทำการ include file okvcache.php เข้ามาก่อน
+ * $cache = new okvcache(); กำหนด new object 
+ * จากนั้นทำตามตัวอย่างในแบบต่างๆด้านล่าง โดยการกำหนดค่า save() จะมี parameter 3 ค่า คือ id(string), data(mixed), ttl(integer)
+ * ซึ่ง ttl คือจำนวนวินาทีที่จะหมดอายุ ค่าเดิมคือ 60 วินาที สามารถกำหนดเพิ่มได้ตามต้องการ
+ * ตัวอย่างการลบ cache อยู่ด้านล่างของหน้า.
+ */
+
+
+include( 'okvcache.php' );
+
+// start new class
+$cache = new okvcache();
+
+/*
+ * ทดสอบ string cache
+ */
+echo '<h3>string cache</h3>';
+if ( false === $val = $cache->get( 'string-cache' ) ) {
+	$data = 'this is string text.';
+	$val = $data;
+	$cache->save( 'string-cache', $data );
+} else {
+	echo '<strong>cached:</strong> ';
+}
+echo $val;
+
+
+echo '<hr />';
+######################################################
+
+
+/*
+ * ทดสอบ array cache
+ */
+echo '<h3>array cache</h3>';
+if ( false === $val = $cache->get( 'array-cache' ) ) {
+	$data = array( 'apple', 'banana', 'mango' );
+	$val = $data;
+	$cache->save( 'array-cache', $data );
+} else {
+	echo '<strong>cached:</strong> ';
+}
+print_r( $val );
+
+
+echo '<hr />';
+######################################################
+
+
+/*
+ * ทดสอบ object cache
+ */
+echo '<h3>object cache</h3>';
+if ( false === $val = $cache->get( 'obj-cache' ) ) {
+	$data = new stdClass();
+	$data->fruit = array( 'apple', 'banana', 'mango' );
+	$data->text = 'this is string text.';
+	$val = $data;
+	$cache->save( 'obj-cache', $data );
+} else {
+	echo '<strong>cached:</strong> ';
+}
+print_r( $val );
+
+
+echo '<hr />';
+######################################################
+
+
+/*
+ * ทดสอบ mixed cache
+ */
+echo '<h3>mixed cache</h3>';
+if ( false === $val = $cache->get( 'mixed-cache' ) ) {
+	$data1 = array( 'apple', 'banana', 'mango' );
+	$data2 = new stdClass();
+	$data2->cars = array( 'mercedes', 'chevrolet', 'toyota' );
+	$data2->text = 'this is string text.';
+	$data2->boolean = false;
+	$data = array_merge( $data1, array( $data2 ) );
+	$val = $data;
+	$cache->save( 'mixed-cache', $data );
+} else {
+	echo '<strong>cached:</strong> ';
+}
+print_r( $val );
+
+
+echo '<hr />';
+######################################################
+
+
+/*
+ * ทดสอบ boolean cache
+ */
+echo '<h3>boolean cache</h3>';
+if ( false === $val = $cache->get( 'bool-cache' ) ) {
+	$data = true;
+	$val = $data;
+	$cache->save( 'bool-cache', $data );
+} else {
+	echo '<strong>cached:</strong> ';
+}
+var_dump( $val );
+
+
+echo '<hr />';
+######################################################
+
+
+// end, clear variables (not required)
+unset( $cache, $data, $data1, $data2, $val );
+
+?>
+		<h3>การลบแคช 1 แคช</h3>
+		<p>ใช้ <code>$cache-&gt;delete( 'cache-id(string)' );</code></p>
+
+
+		<h3>การล้างแคชทั้งหมด</h3>
+		<p>ใช้ <code>$cache->clear();</code></p>
+
+
+	</body>
+</html>