实例说明：<?php $dir = "/images/"; // Open a directory, and read its contents if (is_dir($dir)){ if ($dh = opendir($dir)){ while (($file...
实例说明：<?php echo getcwd() ?>标签含义：getchwd：函数返回当前工作目录。源代码运行结果如下：...
实例说明：<?php $d = dir(getcwd()); echo "Handle: " . $d->handle . "<br>"; echo "Path: " . $d->path . "...
实例说明：<?php // Change root directory chroot("/path/to/chroot/"); // Get current directory echo getcwd(); ?>标签含义：chroot：函数改变当前进程的根目...
实例说明：<?php // Get current directory echo getcwd() . "<br>"; // Change directory chdir("images"); // Get current dire...
实例说明：<!DOCTYPE html> <html> <body> <?php $a=array(5,10,15); echo array_sum($a); ?> </body> </html>标签含义：arr...
实例说明：<!DOCTYPE html> <html> <body> <?php $a1=array("a"=>"red","b"=>"green"); $...
实例说明：<!DOCTYPE html> <html> <body> <?php $cars=array("奔驰","宝马","奥迪"); echo count($cars); ?>...
实例说明：<!DOCTYPE html> <html> <body> <?php $a=array("a"=>"red","b"=>"green","...
