Through PHP, files can be uploaded to the server
We will demonstrate it through code
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>文件上传</title>
</head>
<body>
<form method="post" action="file.php" enctype="multipart/form-data" name="uploadfile">
<label>文件名</label>
<input type="file" id="upfile" name="upfile"></br></br></br>
<input type="submit" value="提交">
</form>
</body>
</html>
As shown in the above code, the form is submitted to file.php. The file.php code is as follows
<?php
header("Content-type: text/html; charset=utf-8");//设置编码
//print_r($_FILES["upfile"]);
if(is_uploaded_file($_FILES['upfile']['tmp_name'])){
$upfile=$_FILES["upfile"];
//获取数组里面的值
$name=$upfile["name"];//上传文件的文件名
$type=$upfile["type"];//上传文件的类型
$size=$upfile["size"];//上传文件的大小
$tmp_name=$upfile["tmp_name"];//上传文件的临时存放路径
//判断是否为图片
switch ($type){
case 'image/pjpeg':$okType=true; break;
case 'image/jpeg':$okType=true; break;
case 'image/gif':$okType=true; break;
case 'image/png':$okType=true; break;
}
if($okType){
/**
* 0:文件上传成功<br/>
* 1：超过了文件大小，在php.ini文件中设置<br/>
* 2：超过了文件的大小MAX_FILE_SIZE选项指定的值<br/>
* 3：文件只有部分被上传<br/>
* 4：没有文件被上传<br/>
* 5：上传文件大小为0
*/
$error=$upfile["error"];//上传后系统返回的值
echo "================<br/>";
echo "上传文件名称是：".$name."<br/>";
echo "上传文件类型是：".$type."<br/>";
echo "上传文件大小是：".$size."<br/>";
echo "上传后系统返回的值是：".$error."<br/>";
echo "上传文件的临时存放路径是：".$tmp_name."<br/>";
echo "开始移动上传文件<br/>";
//把上传的临时文件移动到up目录下面
//move_uploaded_file($tmp_name,'up/'.$name);
$destination="up/".$name;
echo "================<br/>";
echo "上传信息：<br/>";
if($error==0){
echo "文件上传成功啦！";
//echo " alt=\"图片预览:\r文件名:".$destination."\r上传时间:\">";
}elseif ($error==1){
echo "超过了文件大小，在php.ini文件中设置";
}elseif ($error==2){
echo "超过了文件的大小MAX_FILE_SIZE选项指定的值";
}elseif ($error==3){
echo "文件只有部分被上传";
}elseif ($error==4){
echo "没有文件被上传";
}else{
echo "上传文件大小为0";
}
}else{
echo "请上传jpg,gif,png等格式的图片！";
}
}
?>Note: For the above two pieces of code, please create two files yourself, copy the code into it, and put it on the local server for debugging
When we select a picture, it will Output the information, such as path, suffix, etc.
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