Php Upload Files to Network Shared Folder
Uploading files, images, and videos using PHP is every bit piece of cake as calculation a couple of scripts. This guide will show yous two dissimilar ways on how to add together php file upload functionality to your site:
- The Elementary PHP Manner – This is the simplest way of adding a PHP uploader to your service. The upside is that you lot have complete control of the files being uploaded.
- Filestack'due south PHP File Upload Service – This is an easier way of adding PHP upload functionality. The upside is that you lot practise not have to manage the complex file upload infrastructure behind-the-scenes.
Let's get started with some easy examples:
PHP File Upload – The Simple Mode
To first, nosotros'll create the post-obit:
1. The HTML Grade
Starting time, nosotros'll create an HTML class that the user volition encounter when they want to upload the file. Create a new folder for this instance projection, and within it, create an index.html file with the following code:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-viii"> <title>PHP File Upload</title> </caput> <trunk> <form activeness="fileUploadScript.php" method="mail" enctype="multipart/form-data"> Upload a File: <input type="file" proper noun="the_file" id="fileToUpload"> <input blazon="submit" name="submit" value="Start Upload"> </form> </body> </html> A couple important things to notice in the instance in a higher place:
-
activity="fileUploadScript.php"– This references the PHP script that volition handle the file upload on the backend -
method="mail"– This tells the browser activity the form will use when sending the file to the server (for uploads, this is well-nigh e'er a Postal service action, sometimes a PUT) -
enctype="multipart/form-data"– This determines the content-blazon that the form submits
Next, open your last and from the directory where you lot created the file, get-go the PHP server:
And so, open up your web browser and become to localhost:1234. You should see something similar this:
2. The PHP File Upload Script
Adjacent, we'll handle the backend of the file upload. First, in the aforementioned directory, create a new directory called uploads. This will be where our script volition save the files.
Then, in the same directory as alphabetize.html, create a file called fileUploadScript.php. Find that this is the aforementioned name as the action attribute in the form. And then add together this code:
<?php $currentDirectory = getcwd(); $uploadDirectory = "/uploads/"; $errors = []; // Store errors here $fileExtensionsAllowed = ['jpeg','jpg','png']; // These will be the only file extensions allowed $fileName = $_FILES['the_file']['name']; $fileSize = $_FILES['the_file']['size']; $fileTmpName = $_FILES['the_file']['tmp_name']; $fileType = $_FILES['the_file']['type']; $fileExtension = strtolower(finish(explode('.',$fileName))); $uploadPath = $currentDirectory . $uploadDirectory . basename($fileName); if (isset($_POST['submit'])) { if (! in_array($fileExtension,$fileExtensionsAllowed)) { $errors[] = "This file extension is not allowed. Please upload a JPEG or PNG file"; } if ($fileSize > 4000000) { $errors[] = "File exceeds maximum size (4MB)"; } if (empty($errors)) { $didUpload = move_uploaded_file($fileTmpName, $uploadPath); if ($didUpload) { echo "The file " . basename($fileName) . " has been uploaded"; } else { echo "An error occurred. Delight contact the ambassador."; } } else { foreach ($errors as $error) { echo $fault . "These are the errors" . "\northward"; } } } ?> A couple things to annotation:
- The fundamental used to access the file from the
$_FILESobject matches the name attribute used in the grade -
$fileName = $<em>FILES['the</em>file']['proper noun'];– This is the proper name of the actual file -
$fileSize = $<em>FILES['the</em>file']['size'];– This is the size of the file in bytes -
$fileTmpName = $<em>FILES['the</em>file']['tmp_name'];– This is the a temporary file that resides in thetmpdirectory of the server -
$fileExtension = strtolower(end(explode('.',$fileName)));– This gets the file extension from the file name -
$uploadPath = $currentDir . $uploadDirectory . basename($fileName);– This is where the files volition be stored on the server. In the script in a higher place, it is set to the current working directory
Too note that in the code above, we validate the file upload by checking both the file blazon and size. (Only png and jpeg files that are less than 4MB)
Now there are a couple final steps before we tin can start uploading files:
- Go to your
uploads/directory and make it writable by running:chmod 0755 uploads/ - Make certain your
php.inifile is correctly configured to handle file uploads (Tip: to discover your php.ini file, runphp --ini):
max_file_uploads = xx upload_max_filesize = 2M post_max_size = 8M Finally, if y'all now start the PHP server and get to localhost:1234, then upload a file, you lot should see it save in the uploads folder!
Keep in mind that the all of the code above requires additional security precautions before being released in production. For example, at that place are currently no checks to see if the user has uploaded a virus disguised as an image. To learn more than, check out this article which describes various means to handle secure file uploads.
File Upload with Filestack
In this second example, we'll apply Filestack to upload a file. Filestack is an advanced file upload API and service that deeply stores files in the cloud.
Why use a third party like Filestack over edifice it yourself? By using a tertiary party you no longer need to deal with the scaling, security, and maintenance that comes with building your own file upload system. This can free you up to focus on building other of import parts of your awarding.
And you can get started for free. Filestack has a free plan that handles up to 100 monthly uploads with 1GB storage and 1GB bandwidth. If you need to go across that amount, they offer pricing that scales with utilise.
So let's get started:
i. Sign upwardly for a Filestack Business relationship
First, we'll sign up for a Filestack account. Go to their registration folio and after you lot log in, get the API Key, which y'all volition use in the later steps.
two. Kickoff Uploading
Now that we have the Filestack library, let's integrate their JavaScript file uploader widget, which allows your users to connect to a diversity of other sources from which to upload from. For example, if they wanted to upload from a URL or from social media. Merely replace the contents of index.html with the following:
<!DOCTYPE html> <html lang="en"> <caput> <meta charset="UTF-8"> <championship>PHP File Upload</title> </caput> <body> <manner> .picker-content{ height:300px; width:200px; } </style> <script src="//static.filestackapi.com/filestack-js/ii.x.x/filestack.min.js"></script> <script type="text/javascript"> certificate.addEventListener("DOMContentLoaded", function(event) { const client = filestack.init(YOUR_API_KEY); allow options = { "displayMode": "inline", "container": ".picker-content", "accept": [ "prototype/jpeg", "image/jpg", "image/png" ], "fromSources": [ "local_file_system" ], "uploadInBackground": fake, "onUploadDone": (res) => console.log(res), }; picker = customer.picker(options); picker.open(); }); </script> <div grade="picker-content"></div> </torso> </html> Then, open your folio and then upload a file using the upload widget. After uploading, you should be able to log into your Filestack dashboard and run into your newly uploaded file:
And that's it! You lot don't even demand the server to handle the file, which is better for scalability, security, and maintenance.
Filestack PHP Library (optional)
The to a higher place example covers the simplest example of uploading a file with Filestack. But, what if you wanted to admission the file on your server to run some kind of mail service-processing, similar checking if an epitome is prophylactic for work? To practice that, y'all can utilise the Filestack PHP library. Nosotros'll use Composer to install the Filestack PHP library. If you don't have Composer already, yous tin install it by going to the folder you created originally and running (see this for official documentation):
php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');" php -r "if (hash_file('sha384', 'composer-setup.php') === '48e3236262b34d30969dca3c37281b3b4bbe3221bda826ac6a9a62d6444cdb0dcd0615698a5cbe587c3f0fe57a54d8f5') { repeat 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;" php composer-setup.php php -r "unlink('composer-setup.php');" After you practise the in a higher place, yous should be able to encounter Composer's output by running php composer.phar.
Then run require --prefer-dist filestack/filestack-php to install the Filestack SDK.
Now that we have the Filestack library, permit'southward brand a new PHP script to cheque if a specific uploaded file is safe for work. Create a new file called fileUploadFilestack.php and add together the following (making certain to modify the YOUR_API_KEY, YOUR_SECURITY_SECRET, and YOUR_FILE_HANDLE variables):
<?php require __DIR__ . '/vendor/autoload.php'; use Filestack\FilestackClient; $client = new FilestackClient(YOUR_API_KEY); $security = new FilestackSecurity(YOUR_SECURITY_SECRET); $file_handle = YOUR_FILE_HANDLE; # get tags with client $result_json = $customer->getTags($file_handle); # become tags with filelink $filelink = new Filelink($file_handle, YOUR_API_KEY, $security); $json_result = $filelink->getTags(); # get safe for work flag with filelink $json_result = $filelink->getSafeForWork(); ?> When this script is run, the event of the safety-for-work check will be saved in the $json_result variable. And that's just one instance. Using the Filestack PHP SDK allows you to perform a diversity of tasks on your uploaded files. Check out these other examples:
- Transform a file before upload
- Test if a file upload is "safe for work"
- Transcode uploaded video or sound
- Catechumen a file upload to pdf
- And more…
In addition, if y'all want to see more examples of how the file upload picker can exist integrated into a course check out these links:
- Upload image
- Open up picker
- Open picker in inline mode
- Crop images
- File preview
- And more than…
Summary
At present that you know how implement PHP file uploads two ways, you lot can easily add this feature to your website or application. If dealing with the scalability, security, and maintenance challenges of hosting your ain file upload infrastructure seems too daunting, let Filestack handle information technology. Likewise be sure to check out our commodity on AJAX File Uploads as well!
Read More →
Source: https://blog.filestack.com/thoughts-and-knowledge/php-file-upload/
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