Symfony2 use third-party library upload to make picture upload instance _php instance

This paper analyzes the method of Symfony2 using third-party library upload to make image uploading. Share to everyone for your reference, as follows:

We generally have the function of setting the avatar in the profile of the application or the website, this chapter we use a third party's more famous upload library to make the function of uploading the picture in Symfony2.

First, install a third-party library

1. In "require" in the Composer.json file, add

"Codeguy/upload": "*"

2. Run the command installation

Composer Update

Second, the Code

1. Write the Uploadpic method to upload the image, and upload the image as the user ID as the file name

<?php/** * @author Sun * by blogs.zmit.cn http://blogs.zmit.cn * Original works, permission to reprint, please be sure to use hyperlinks in the form of the original source of the article http://blogs.zmit.cn/ 6544.html * Chinese Dream Blog, author information and this statement. Otherwise, the legal liability will be investigated. */namespace Zm\adminbundle\controller;use Symfony\bundle\frameworkbundle\controller\controller;use Symfony\ Component\filesystem\filesystem;class Defaultcontroller extends Controller {public Function indexaction ($name) {Retu  RN $this->render (' ZMAdminBundle:Default:index.html.twig ', Array (' name ' = = $name));   /** * Upload image * * @param type $user The ID of the _id user, use as file name * @param type $str name of input of type file in form * @param type $path    Save path * @return Type */Public function uploadpic ($user _id, $str, $path) {$fs = new Filesystem ();    Check if the path exists if (! $fs->exists ($path)) {//If not present, create directory $fs->mkdir ($path, 0700);    }//using Upload library $storage = new \upload\storage\filesystem ($path);    $file = new \upload\file ($STR, $storage); If the file name is null if ($file->getname ()! = ") {//sets the file name to the user's ID $file->setname ($user _id); Verify File Upload $file->addvalidations (Array (//Specify file Type new \upload\validation\mimetype (Array (' image/png ', ' I      Mage/jpg ', ' image/jpeg ', ' image/gif '),//Specify File Size new \upload\validation\size (' 2M '));        Upload file try {//Success $file->upload ();      File name and extension $file _name = $file->getnamewithextension ();        } catch (\exception $e) {//failed!      $errors = $file->geterrors ();  }}//Return file name and extension return $file _name; }}

2. The user uploads the avatar and stores the full path of the avatar into the database table

<?php/** * Contact Controller * @author Sun * by blogs.zmit.cn http://blogs.zmit.cn * Original works, permission to reprint, please be sure to use hyperlinks in the form of the original source of the article http://blogs.z mit.cn/6544.html * Chinese Dream Blog, author information and this statement. Otherwise, the legal liability will be investigated. */namespace zm\apibundle\controller;//refer to the Uploadpic Controller that wrote the upload image method and named Basecontrolleruse zm\adminbundle\ Controller\defaultcontroller as Basecontroller;use symfony\component\httpfoundation\request;use Symfony\Component\  httpfoundation\response;//inherit Basecontrollerclass Contactcontroller extends Basecontroller {/** * user uploads avatar * * @return    Response */Public Function uploadheadaction () {$request = Request::createfromglobals ()->request;    $user _id = $request->get (' user_id '); Determine if there is a file upload if (isset ($_files[' head ')) && $_files[' head ']! = ") {$conn = $this->getdoctrine ()->get      Connection (); $data = $conn-&GT;FETCHASSOC ("Select ID, head from the contact WHERE id =?")      LIMIT 1 ", Array ($user _id)); Determine if the user exists if (!empty ($data [' ID ')]) {//Set picture save path $path = ' image/head/';       Gets the file name and extension $file _name = $this->uploadpic ($user _id, ' head ', $path) returned after uploading the files; Modify the value of the user Contact table Head picture field $conn->executeupdate ("UPDATE contact SET head =?")        WHERE id =? ", Array ($path. $file _name, $user _id));        $result [' flag '] = 1; $result [' content '] = ' upload avatar successfully!      ';        } else {$result [' flag '] = 3; $result [' content '] = ' user does not exist!      ';      }}else{$result [' flag '] = 2; $result [' content '] = ' upload failed, no picture Selected!    ';  } return new Response (Json_encode ($result), ' n ', Array (' content-type ' = ' Application/json ')); }}

So the picture is uploaded successfully, the user's ID as the file name, and modify the table field value as the full path of the picture

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It is hoped that this article is helpful to the PHP program design based on Symfony framework.

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