I'm quite new to using composer and I am not too sure what I am doing at this point. I am currently trying to use this Nmap library I found. now once I have this library installed using this commandcomposer require willdurand/nmap
I created a index.php file with
<?php
require __DIR__ . '/vendor/autoload.php';
$hosts = Nmap::create()->scan([ 'example.com' ]);
$ports = $hosts->getOpenPorts();
echo $ports;
?>
This is what my composer.json file
{
"require": {
"willdurand/nmap": "^0.5.0"
}
}
When I run this I get PHP Fatal error: Uncaught Error: Class 'Nmap' not found in /var/www/html/nmap.php:5. I have Nmap installed on my Unix system. Any help on this issue would be great.
When you do not define a current namespace, PHP looks for any references classes in the root namespace. However, it cannot find Nmap in the root namespace because it is defined in the ´Nmap´ namespace.
You have to either add the namespace to the class defenition:
$hosts = \Nmap\Nmap::create()->scan([ 'example.com' ]);
Or, add a using statement for this class at the top of your file: (under <?php ofcourse)
use Nmap\Nmap;
Related
I've been trying to use this Anti XSS Library: https://github.com/voku/anti-xss/blob/master/README.md
But I'm getting following error:
AH01071: Got error 'PHP message: PHP Fatal error: Class 'voku\\helper\\AntiXSS' not found in /var/www/vhosts/example.com/httpdocs/xss.php on line 6\n'
Here's the code I'm using:
<?php
use voku\helper\AntiXSS;
require_once __DIR__ . '/vendor/autoload.php';
$antiXss = new AntiXSS();
$harm_string = "Hello, i try to <script>alert('Hack');</script> your site";
echo $antiXss->xss_clean($harm_string);
?>
You need to require the autoload before you reference the class.
require_once __DIR__ . '/vendor/autoload.php';
use voku\helper\AntiXSS;
Otherwise, this dependancy namespace will not be loaded into memory in the context, as it is loaded inside the autoload.php file. This is why it says class not found.
Also Make Sure You've Installed via "composer require"
composer require voku/anti-xss
I am trying to include a package from composer, but I am receiving a class not found error.
I have tried the below possibilities.
$supermeteor = new \Supermeteor\Supermeteor('XXXXXXXX');
and
use Supermeteor\Supermeteor;
$supermeteor = new Supermeteor('xxxxxxxx');
Packages composer.json:
"psr-4": {
"Supermeteor\\": ""
}
Packages namespace :
namespace Supermeteor;
Packages class name :
class Supermeteor() {}
Error message
Uncaught Error: Class 'Supermeteor\Supermeteor' not found in
C:\path\to\my\file.php:16
I just tested your package locally, and it seems to work fine for me using the same code as you provided in your question. This is how I tested it.
1. Create a new project
Create a new directory on your computer.
2. Add the package to a new project using Composer
Locate your new directory on the command line and add the package to your projects autoloader by running the below composer command.
composer require supermeteor/sdk-php
3. Use the package
Create an index.php file in the same directory as your composer.json and add the below code.
<?php
require_once __DIR__ . '/vendor/autoload.php';
use Supermeteor\Supermeteor;
$supermeteor = new Supermeteor("xxx");
4. Test the results
In the terminal window start a new php server to serve your project.
php -S localhost:8089
Now access the site via your browser at http://localhost:8089.
I installed composer and laravel and installed some packages
all work fine, but now I created my own class under the folder services
I gave it name space of Services like that:
namespace Services;
And the class name is UploadToImgurService
I run the composer command:
composer dump-autoload
And in my controller I wrote:
use Services\UploadToImgurService;
But I get this error:
Class 'Services\UploadToImgurService' not found
What did I did wrong?
Is there anything else that I should do with composer for autoloading the service class?
EDIT
I found a solution
I edited y composer.json file and added to psr-4 the line
"Services\\" : "app/services"
But why It didn't workt before? The line :
"App\\": "app/",
was there, maybe it loaded the class but under the app namespace?
If you are using a case sensitive file system, you will need to have the Services folder with upper case S.
Your idea is right, but let me try to explain how the psr-4 autoloading works.
You can define root namespaces in your composer.json file and map it to any project directory. Inside the defined directories, your classes should get the root namespace. The namespace segments after the root are build by your sub directory structure and the class name is equal to the file name (PSR-4 Autoloading).
E.g
"MyNamespace\\WithSubNamespace\\": "cool/project"
cool/project/MyClass.php -> MyNamespace\WithSubNamespace\MyClass
cool/project/SubDirectory/AnotherClass.php -> MyNamespace\WithSubNamespace\SubDirectory\AnotherClass
In Laravel, the app directory is mapped to the App namespace as default. Optionally, you can change the root namespace with the command php artisan app:name [NewRootNamespaceName], but the autoloader only finds classes inside the app directory.
If you create a new directory outside of "app", you have to add the directory to your psr-4 namespace mapping in the composer.json file.
In your example, you define a new root namespace in the existing app directory, so your issue was that the root namespace was unknown and you solved it by adding the line in your composer.json.
This is possible, because psr-4 provides a huge flexibility. But personally, i would not recommend to use different root namespaces in the same project.
I hope i could help and maybe this is also interesting for you: composer.json PSR-4.
maybe you forgot to add this line of code
require_once('vendor/autoload.php');
Once I was getting the error:
Fatal error: Uncaught Error: Class "..." not found
in /var/www/html/... on line ...
I was requiring autoload file this way:
require 'vendor/autoload.php';
After I changed the line to:
require __DIR__.'/vendor/autoload.php';
it started working...
Weird, since the the vendor folder was in the same directory as the file which was calling it.
BTW, I was using Composer 2 and PHP 8.1.
I am using elasticsearch API php to build search results. I have configured everything in my xampp server. All the libraries downloaded from composer.json. In my composer.json file contains below code
{
"require": {
"elasticsearch/elasticsearch": "~2.0"
}
}
Libraries are successfully downloaded. After that i initialize the elastic search with below code
<?php
require 'vendor/autoload.php';
$client = ClientBuilder::create()->build();
It shows fatal error like as follows
Fatal error: Class 'ClientBuilder' not found in E:\Xampp\htdocs\codeporn\elasticsearch\app\init.php on line 4
So i change the config code as,
require_once 'vendor/autoload.php';
$es = new Elasticsearch\Client([
'hosts' => ['127.0.0.1:9200']]
]);
This also shows error like
Parse error: syntax error, unexpected ']' in E:\Xampp\htdocs\codeporn\elasticsearch\app\init.php on line 10
I am following the below youtube tutorial to build the search
https://www.youtube.com/watch?v=3xb1dHLg-Lk
Please suggest what i went wrong in Elasticsearch - PHP.
My PHP Version is 5.5.9
i have initialize the clientbuilder class, now it works fine
require 'vendor/autoload.php';
use Elasticsearch\ClientBuilder;
$client = ClientBuilder::create()->build();
you need install it with composer
composer require elasticsearch/elasticsearch
I downloaded phpwhois from here,
and copied it in vendor folder in cakephp.
But when I load whois class in controller :
App::import('Vendor', 'phpWhois\Whois', array('file' => 'phpWhois/Whois.php'));
It shows me this error :
Error: Class 'phpWhois\WhoisClient' not found
File: \app\Vendor\phpWhois\Whois.php
Since whois class extend WhoisClient.
What should I do?
install using following composer command
php composer.phar require "phpwhois/phpwhois":"~4.0"
Add following line in bootstrap.php
require APP . 'Vendor/autoload.php';
spl_autoload_unregister(array('App', 'load'));
spl_autoload_register(array('App', 'load'), true, true);
and add this before before controller's class definition
use phpWhois\Whois;