Files can be upload using PHP in an HTML form.Firstly the files are uploaded in initial/ temporary folder and later it is relocated to the target defined by PHP script. There are certain criteria for uploading files in PHP like upload_max_filesize. You can find information in the phpinfo.php about file uploads.
Here the example is divided in two parts please carefully go through it to have a proper formulation.
[NOTE : Please create a folder "upload" in your server directory]
PHP Script (upload.php)
<?php
$name = $_FILES['file']['name'];
$tmp_name = $_FILES['file']['tmp_name'];
if (isset($name)) {
if (!empty($name)) {
$location = 'upload/';
$target_file = $location . $name;
if (!file_exists($target_file)) {
if (move_uploaded_file($tmp_name, $location . $name)) {
echo('uploaded');
}
}else{
echo 'File already exist.';
}
} else {
echo 'please choose a file';
}
}
?>
PHP Script (index.php)
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>nirajanghimirey's workshop</title>
</head>
<body>
<h3>File Upload:</h3>
<form action="upload.php" method="POST" enctype="multipart/form-data">
Select file to upload: <input type="file" name="file"><br>
<input type="submit" value="Submit">
</form>
</body>
</html> 
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