In the process of background development, it is often necessary for the application to upload files to the server. This article mainly shares with you PHP to upload files to the server and implement image preview. I hope it can help everyone.
1. Backend request address page operation (can also be the current page):
<?php
header('content-type:text/html,charset=gbk');
?>
<?php
if(!empty($_FILES)){
$current_img = $_FILES['lgc_img'];
$http_path = dirname('http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']).'/images/'.$current_img['name'];
$file_dir = dirname(__FILE__).'/images/'.$current_img['name'];
echo $current_img['tmp_name'].'<br/>';
echo $file_dir;
$bool = @move_uploaded_file($current_img['tmp_name'],$file_dir);
}
?>2. Frontend form page:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<body>
<form action="" method="post" enctype="multipart/form-data">
<input type="hidden" name="MAX_FILE_SIZE" value="1000000" /> 上传文件:
<input type="file" name="lgc_img" />
<input type="submit" name="submit" value="提交" />
</form>
<?php
if(@$bool)
{
?>
<img src='<?php echo $http_path; ?>' width='10%' />
<?php
}
?>
</body>
</html>* This case action="" indicates the requested current page
* Summary: $_FILES and move_uploaded_file() are mainly used
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