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李二狗 — @Meniny
Published 12:01 Jan 21, 2012.
Created by @ezra. Categorized in #Programming, and tagged as #PHP.
Source format: Markdown
资源(即 resource)由专门的函数来建立和使用，如打开文件、数据连接等。举个栗子:
<?php
$file = fopen("test.txt","r"); // 打开文件
$con = mysql_connect("localhost","root","root"); // 连接数据库
$img = imagecreate(200,200);// 图形画布
?>
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