一直想要寫支API讓行動裝置能上傳影像到伺服器，首先我就來寫PHP如何處理上傳影像，再來包裝Restful API。
![[XAMPP][PHP] 處理上傳檔案.jpg](https://cg2010studio.files.wordpress.com/2016/08/xamppphp-e89995e79086e4b88ae582b3e6aa94e6a188.jpg?w=540)
成功上傳後馬上就能看到影像！（看我們楊大多認真啊ＸＤ～）
網路上有教學總是能讓人快速上手，如此也能讓人馬上得到成就感！
![[XAMPP][PHP] 處理上傳檔案2](https://cg2010studio.files.wordpress.com/2016/08/xamppphp-e89995e79086e4b88ae582b3e6aa94e6a1882.png?w=540)
本機端開啟網頁
<!DOCTYPE html>
<html>
<body>
<form action="upload.php" method="post" enctype="multipart/form-data">
Select image to upload:
<input type="file" name="fileToUpload" id="fileToUpload">
<input type="submit" value="Upload Image" name="submit">
</form>
</body>
</html>
接著來寫上傳時，會觸發的PHP，要判斷檔案是否已存在、檔案類型、檔案大小是否符合我們所預期。
<?php $target_dir = "uploads/"; $target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]); $uploadOk = 1; $imageFileType = pathinfo($target_file,PATHINFO_EXTENSION); // Check if image file is a actual image or fake image if(isset($_POST["submit"])) { $check = getimagesize($_FILES["fileToUpload"]["tmp_name"]); if($check !== false) { echo "File is an image - " . $check["mime"] . "."; $uploadOk = 1; } else { echo "File is not an image."; $uploadOk = 0; } } // Check if file already exists if (file_exists($target_file)) { echo "Sorry, file already exists."; $uploadOk = 0; } // Check file size if ($_FILES["fileToUpload"]["size"] > 500000) {
echo "Sorry, your file is too large.";
$uploadOk = 0;
}
// Allow certain file formats
if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg"
&& $imageFileType != "gif" ) {
echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
$uploadOk = 0;
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0) {
echo "Sorry, your file was not uploaded.";
// if everything is ok, try to upload file
} else {
if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
} else {
echo "Sorry, there was an error uploading your file.";
}
}
?>
使用另一台電腦或手機，開啟連結，點擊選擇檔案，然後上傳，成功後馬上能在資料夾中看到影像喔！
![[XAMPP][PHP] 處理上傳檔案3](https://cg2010studio.files.wordpress.com/2016/08/xamppphp-e89995e79086e4b88ae582b3e6aa94e6a1883.png?w=540)
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