Attempted to load class "Imagick" from the global namespace in symfony3 - php

Question

So I'm currently using "Imagick" extension for a symfony project, but I get this error:
ClassNotFoundException: "Attempted to load class "Imagick" from the global namespace. Did you forget a "use" statement?"
Strangely, it's working fine in all native php script, but not working in symfony project!
I did some research and I found that I need to enable imagick for CLI also .. but I didn't find any method explain how to make it.
So, I verified Imagick installation by this code snippet:
<?php
header('Content-type: image/jpeg');
$image = new imagick("C:/wamp64/www/test/image.jpg");
$image->thumbnailImage(100,0);
echo $image;
and I can see the image loaded correctly.
Also, when I run this script from the browser:
<?php
if (extension_loaded('imagick')){
echo 'imagick is installed';
} else {
echo 'imagick not installed';
}
?>
I get :
imagick is installed
But when I execute this file from command-line interface, I get :
imagick not installed
In the Symfony project I get this error log:
Uncaught PHP Exception Symfony\Component\Debug\Exception\ClassNotFoundException: "Attempted to load class "Imagick" from the global namespace. Did you forget a "use" statement?"
Symfony function
private function createThumbnail($path, $dest, $width, $height)
{
$im = new \Imagick();
$im->pingImage($path);
$im->readImage($path);
$im->thumbnailImage($width, $height);
$white=new \Imagick();
$white->newImage($width, $height, "white");
$white->compositeImage($im, \Imagick::COMPOSITE_OVER, 0, 0);
$white->setImageFormat('jpg');
$white->writeImage($dest);
$im->destroy();
$white->destroy();
}
Environment
PHP Version => 7.1.9
System => Windows 10
Server => Wamp64
Symfony version => 3.1
Compiler => MSVC14 (Visual C++ 2015)
Architecture => x64
imagick module version => 3.4.3
ImageMagick version => ImageMagick 6.9.3-7 Q16 x64 2016-03-27

Answer 1

The complete ImageMagick/Symfony installation steps are the following (here for Windows):
Download the package from https://pecl.php.net/package/imagick/3.5.1/windows
Extract from php_imagick-….zip the php_imagick.dll file, and save it to the ext directory of your PHP installation
Extract the dependencies
• For PHP 5.x/7.x: Extract from ImageMagick-….zip the DLL files located in the bin folder that start with CORE_RL or IM_MOD_RL or FILTER, and save them to the PHP root directory (where you have php.exe), or to a directory in your PATH variable:
• 17 files CORE_RL*.dll
• 126 files IM_MOD_RL*.dll
• 1 files FILTER*.dll
• For PHP 8.x: Extract from php_imagick-….zip the DLL files that start with CORE_RL or IM_MOD_RL or FILTER, and save them to the PHP root directory (where you have php.exe), or to a directory in your PATH variable
Add this line to your php.ini file: extension=php_imagick.dll
Restart the Apache/NGINX Windows service (if applicable)
Check if the install is correct through phpinfo() for which a specific imagick block has been added
Don’t forget to add use Imagick; to your php file

Answer 2

I found the solution, I put the answer for someone who have the same issue:
you should add the following lines
;on Windows:
extension=php_imagick.dll
;on UNIX:
extension = imagick.so
to C:\wamp64\bin\php\phpx.x.x\php.ini
not to C:\wamp64\bin\apache\apachex.x.x\bin\php.ini
because the first php.ini is the file used by PHP CLI, so by the Symfony Local Web Server.
Happy coding!