ZF2 File Upload Examples Module A set of form file upload examples to test the new features in the upcoming ZF 2.1 release. NOTE: These examples are only compatible with Zend Framework version 2.1 (or greater). You can find a good primer on file uploading in the. List of Examples • Using a single File element. Jun 4, 2014 - Want to know how to create a file upload form in Zend Framework 2? Today's post steps through how it's done, along with filters and validators. Form file upload examples for Zend Framework 2. Using AJAX to upload files and displaying progress with Session Upload Progress (Requires PHP 5.4). • Using multiple File elements in a Collection. • Using a single File element with the HTML5 'multiple' attribute. • Temporarily save uploaded file(s) until a form is completely valid. • Using file uploads with the Post-Redirect-Get plugin. • Using AJAX to upload files and displaying progress with (Requires PHP 5.4). • Complex example using with a partially valid form (Requires PHP 5.4). See the for more details. If there is a use-case for file uploading that you'd like to see and isn't currently included here, please create a GitHub issue. Installation • Install the. • Clone this project into your./vendor/ directory (or use composer, see below). • Enable ZF2FileUploadExamples in your application.config.php file. • Create a./data/tmpuploads directory, and make writeable by the webserver. • Download the into./public/js/jquery.form.js (for the Upload Progress example). • Navigate to /file-upload-examples in your browser to see the list of examples. You may also need to change/verify these php.ini settings. // File: upload-form.phtml prepare (); // The correct enctype is set here?> form () -> openTag ( $form );?> get ( 'image-file' );?> formLabel ( $fileElement );?> formFile ( $fileElement );?> formElementErrors ( $fileElement );?> Submit form () -> closeTag ();?> When rendered, the HTML should look similar to. File Post-Redirect-Get Plugin When using other standard form inputs (i.e. Text, checkbox, select, etc.) along with file inputs in a Form, you can encounter a situation where some inputs may become invalid and the user must re-select the file and re-upload. PHP will delete uploaded files from the temporary directory at the end of the request if it has not been moved away or renamed. Serial key for mortal kombat arcade kollection. Re-uploading a valid file each time another form input is invalid is inefficient and annoying to users. One strategy to get around this is to split the form into multiple forms. One form for the file upload inputs and another for the other standard inputs. When you cannot separate the forms, the can be used to manage the file inputs and save off valid uploads until the entire form is valid. Changing our earlier example to use the fileprg plugin will require two changes. • Adding a RenameUpload filter to our form’s file input, with details on where the valid files should be stored. Upload Progress While pure client-based upload progress meters are starting to become available with, not all browsers have. For upload progress to work in a greater number of browsers (IE9 and below), you must use a server-side progress solution. Zend ProgressBar Upload provides handlers that can give you the actual state of a file upload in progress. To use this feature you need to choose one of the (APC, uploadprogress, or Session) and ensure that your server setup has the appropriate extension or feature enabled. // File: upload-form.phtml prepare ();?> form () -> openTag ( $form );?> formFileSessionProgress (); // Must come before the file input!?> get ( 'image-file' );?> formLabel ( $fileElement );?> formFile ( $fileElement );?> formElementErrors ( $fileElement );?> Submit form () -> closeTag ();?> When rendered, the HTML should look similar to. Avatar Image Upload Submit There are a few different methods for getting progress information to the browser (long vs. Short polling). Here we will use short polling since it is simpler and less taxing on server resources, though keep in mind it is not as responsive as long polling. When our form is submitted via AJAX, the browser will continuously poll the server for upload progress. The following is an example Controller action which provides the progress information. Warning This is not the most efficient way of providing upload progress, since each polling request must go through the Zend Framework bootstrap process. A better example would be to use a standalone php file in the public folder that bypasses the MVC bootstrapping and only uses the essential Zend ProgressBar adapters. Back in our view template, we will add the JavaScript to perform the AJAX POST of the form data, and to start a timeout interval for the progress polling. To keep the example code relatively short, we are using the to do the AJAX form POST. If your project uses a different JavaScript framework (or none at all), this will hopefully at least illustrate the necessary high-level logic that would need to be performed. Edit this document The source code of this file is hosted on GitHub. Everyone can update and fix errors in this document with few clicks - no downloads needed. • Login with your account. • Go to on GitHub. • Edit file contents using GitHub's text editor in your web browser • Fill in the Commit message text box at the end of the page telling why you did the changes. Press Propose file change button next to it when done. Zend Framework Upload File Ajax Download• On Send a pull request page you don't need to fill in text anymore. Just press Send pull request button. • Your changes are now queued for review under project's tab on GitHub.
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