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php 实现简单的图片上传代码

2007-09-24 15:19 1186 查看

//author:leo 2007-09-24

<?php
$uptypes = array(
'image/jpg',
'image/jpeg',
'image/png',
'image/pjpeg',
'image/gif',
'image/bmp',
'image/x-png'
);
?>

<html>
<head>
<style type="text/css">
body,td{
font-family:tahoma,verdana,arial;
font-size:11px;
line-height:15px;
background-color:white;
color:#666666;
margin-left:20px;}
</style>
</head>
<body>
<form enctype="multipart/form-data" name="upImage_form" action="upImage.php" method="post">
<table>
<tr>
<td>图片上传:
<input name="upfile" type="file" style="width:200;border:1 solid #9a9999; font-size:9pt; background-color:#ffffff" size="17">
<input name="Submit" type="submit" value="上传" style="width:30;border:1 solid #9a9999; font-size:9pt; background-color:#ffffff" size="17"><br><br><br>
<span class="red"><b>Hint:</b></span> Maximum File Size: 500KB File Format: *.jpg *.gif *.png
</td>
</tr>
</table>
</form>
</body>
</html>

<?php
if($_POST['Submit']=='上传'){

$file = $_FILES["upfile"];
$fname = $_FILES["upfile"]["name"];
$fname_array = explode('.',$fname);
$extend = $fname_array[count($fname_array)-1];
$MAX_FILE_SIZE = 512000;
//文件当前位置创建picture文件夹，若要在上一层目录创建则为"../picture/";
$dest_folder = "picture/";
if($extend!=""){
if(!in_array($file["type"],$uptypes)){
echo "只能上传图片文件!";
exit;
}
if($file["size"]>$MAX_FILE_SIZE){
echo "图片大小不能超过512KB!";
exit;
}
if(!file_exists($dest_folder)){
mkdir($dest_folder);
}
$randval = date('Ymd').rand();
$uploadfile = $dest_folder.$randval.'.'.$extend;
echo 'uploadfile: '.$uploadfile ;
if(move_uploaded_file($_FILES["upfile"]["tmp_name"],$uploadfile)){
echo "图片上传成功!";
}else{
echo "图片上传失败!";
}
}
}
?>

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