简单的PHP文件上传API

Tags: /PHP/ Date Created:

简单的文件上传API，保存在 ./files 目录下，返回文件的完整 URL。

<?php
$allowedExtensions = ['zip', 'jpg', 'jpeg', 'png', 'gif'];
$uploadDir = './files/';
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
if (!empty($_FILES['file']) && $_FILES['file']['error'] === 0) {
$filename = $_FILES['file']['name'];
$tempFilePath = $_FILES['file']['tmp_name'];
$extension = strtolower(pathinfo($filename, PATHINFO_EXTENSION));
$mime = mime_content_type($tempFilePath);
if (in_array($extension, $allowedExtensions) && in_array($mime, ['application/zip', 'image/jpeg', 'image/png', 'image/gif'])) {
$newFilename = uniqid() . '.' . $extension;
$destination = $uploadDir . $newFilename;
if (move_uploaded_file($tempFilePath, $destination)) {
$url = 'https://' . $_SERVER['HTTP_HOST'] . '/files/' . $newFilename;
echo $url;
exit;
} else {
echo '文件上传失败';
}
} else {
echo '不支持的文件类型';
}
} else {
echo '上传文件失败';
}
}
?>
<!DOCTYPE html>
<html>
<head>
<title>文件上传示例</title>
</head>
<body>
<form action="file.php" method="post" enctype="multipart/form-data">
<label for="file">选择文件：</label>
<input type="file" name="file" id="file" accept=".zip,.jpg,.jpeg,.png,.gif">
<button type="submit">上传文件</button>
</form>
</body>
</html>