PHP中上传图片并浏览

<form action="" method="post" enctype="multipart/form-data" name="form1" id="form1">
  <input type="file" name="fileField" id="fileField" />
  <input type="submit" name="submit" id="submit" value="提交" />
</form>
<?php
if($_POST["submit"])
{
	$file_gai = $_FILES["fileField"];$filename_gai=$file_gai["tmp_name"];
	$destination = basename($file_gai["name"]);
	if(!move_uploaded_file ($filename_gai, $destination))
	{
			echo "<font color='red'>移动文件出错！</a>";
	}else{
		echo ("<script>location.href='?file=".urlencode($destination)."'</script>");
	}
}if($_GET["file"])
{
	echo "<img src='".urldecode($_GET["file"])."'>";
}
?>