PHP实现规范化文件上传
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2022-03-05 13:25:12
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一 代码
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>规范化的文件上传</title>
<link href="css/style.css" rel="stylesheet" type="text/css" />
</head>
<body>
<table width="830" border="0" cellpadding="0" cellspacing="0">
<tr>
<td colspan="3"><img src="images/bg_01.jpg" width="830" height="133" /></td>
</tr>
<form action="" method="post" enctype="multipart/form-data">
<tr>
<td width="193" rowspan="4"> </td>
<td width="423" height="50">选择上传文件：
<input type="hidden" name="MAX_FILE_SIZE" value="100000000" />
<input type="file" name="up_picture"/>
</td>
<td width="214" rowspan="4"> </td>
</tr>
<tr>
<td height="30" align="center"><span class="STYLE1">上传图片格式为（jpg）、大小为（2M）</span></td>
</tr>
<tr>
<td height="50" align="center"><input type="image" name="imageField2" src="images/bg_09.jpg" />
<input type="image" name="imageField3" src="images/bg_11.jpg" /></td>
</tr>
</form>
<tr>
<td height="70">
<?php
if(!empty($_FILES['up_picture']['name'])){ //判断上传内容是否为空
if($_FILES['up_picture']['error']>0){ //判断文件是否可以上传到服务器
echo "上传错误:";
switch($_FILES['up_picture']['error']){
case 1:
echo "上传文件大小超出配置文件规定值";
break;
case 2:
echo "上传文件大小超出表单中约定值";
break;
case 3:
echo "上传文件不全";
break;
case 4:
echo "没有上传文件";
break;
}
}else{
list($maintype,$subtype)=explode("/",$_FILES['up_picture']['type']);
if($maintype!="image" || $subtype!="jpeg"){
echo "上传文件格式不正确";
}else{
if(!is_dir("./upfile/")){ //判断指定目录是否存在
mkdir("./upfile/"); //创建目录
}
$path='./upfile/'.time().strtolower(strstr($_FILES['up_picture']['name'],".")); //定义上传文件名称和存储位置
if(is_uploaded_file($_FILES['up_picture']['tmp_name'])){ //判断文件是否是HTPP POST上传
if(!move_uploaded_file($_FILES['up_picture']['tmp_name'],$path)){ //执行上传操作
echo "上传失败";
}else{
echo "文件:<span class='STYLE1'>".time().strtolower(strstr($_FILES['up_picture']['name'],"."))."</span> 上传成功，大小为：<span class='STYLE1'>".$_FILES['up_picture']['size']."</span> 字节";
}
}else{
echo "上传文件:<span class='STYLE1'>".$_FILES['up_pictute']['name']."</span>不合法！";
}
}
}
}
?>
</td>
</tr>
<tr>
<td colspan="3"><img src="images/bg_14.jpg" width="830" height="30" /></td>
</tr>
</table>
</body>
</html>
二 运行结果
