学步园

需要3个代码文件，action.php、index.html、jquery.form.js，代码可进去下面的链接页下载

代码详解参考http://www.helloweba.com/view-blog-189.html

我自己稍作修改，解除对上传的限制，路径也稍作修改下

<?php
$action = $_GET['act'];
if($action=='delimg'){
	$filename = $_POST['imagename'];
	if(!empty($filename)){
		unlink('files/'.$filename);
		echo '1';
	}else{
		echo '删除失败.';
	}
}else{
	$picname = $_FILES['mypic']['name'];
	$picsize = $_FILES['mypic']['size'];
	if ($picname != "") {
		//if ($picsize > 1024000) {
		//	echo '图片大小不能超过1M';
		//	exit;
		//}
		//$type = strstr($picname, '.');
		//if ($type != ".gif" && $type != ".jpg") {
		//	echo '图片格式不对！';
		//	exit;
		//}
		$rand = rand(100, 999);
		$pics = date("YmdHis") . $rand . $type;
		//上传路径
		//$pic_path = "files/". $pics;
    $targetFolder = '/uploads'; 
    $targetPath = $_SERVER['DOCUMENT_ROOT'] . $targetFolder;
	  $targetFile = rtrim($targetPath,'/') . '/' . $_FILES['mypic']['name'];
    
		move_uploaded_file($_FILES['mypic']['tmp_name'], $targetFile);
	}
	$size = round($picsize/1024,2);
	$arr = array(
		'name'=>$picname,
		'pic'=>$pics,
		'size'=>$size
	);
	echo json_encode($arr);
}
?>

创建存放上传文件的路径uploads

1、刚开始在ubuntu的apache+php的环境下测试

通过浏览器浏览http://localhost/upload/index.html,能够打开网页，但上传不了文件，查了很久，后来修改了apache端口，即可上传（default port 80 --->8001）

2、在arm-ubuntu的lighttpd+php的环境下测试

通过浏览器浏览http://localhost/upload/index.html,能够打开网页，但上传不了文件，根据上述经验，修改fastcgi端口

修改 conf.d/fastcgi.conf

fastcgi.server = (
        ".php" =>
        ( "localhost" =>
		(
                "socket" => "/opt/web/lighttpd.player.server.socket",
                "bin-path" => "/opt/php/bin/php-cgi",
                "max-procs" => 1,
                "check-local" => "disable"
        ))
)

修改成

fastcgi.server = (
	".php" =>
	( "localhost" =>
		(
	#	"socket" => "/opt/web/lighttpd.player.server.socket",
		"host" => "127.0.0.1",
		"port" => 1026,
		"bin-path" => "/opt/web/sbin/php-cgi",
		"max-procs" => 1,
		"check-local" => "disable"
	))
)

3、后来发现上传文件最大2M

查看了lighttpd.conf（server.max-request-size ），没有限制上传文件的大小，奇怪，浏览器打开http://192.168.1.129/test.php

test.php

<?php
phpinfo();
?>

发现

upload_max_filesize = 2M

开始修改

修改在php下POST文件大小的限制 
修改php.ini 
post_max_size = 8M 改为 post_max_size = 20M 
upload_max_filesize = 2M 改为 upload_max_filesize = 20M 
memory_limit = 16M(默认为8M) 由于上传大文件比较费时，所以 
max_execution_time 设为800 

把php代码里面的默认值也修改成上述值

重新编译，把生成的php-cgi拷贝到 fastcgi.conf里面指定的bin-path路径。

ok

成功上传大文件到目标板系统上