Fatal error: Uncaught Error: Call to undefined function Picqer\Barcode\imagejpeg()

[developerluanramos]

Hello guys!

I am getting that error:

Fatal error: Uncaught Error: Call to undefined function Picqer\Barcode\imagejpeg()

This is my code

$gerador = new \Picqer\Barcode\BarcodeGeneratorJPG();

$bar_code =  $gerador->getBarcode($codigo, $gerador::TYPE_INTERLEAVED_2_5, 2, 50);

<?php

namespace Picqer\Barcode;

use Imagick;

class BarcodeGeneratorJPG extends BarcodeGeneratorPNG
{
    protected function createImagickImageObject(int $width, int $height): Imagick
    {
        $image = new Imagick();
        $image->newImage($width, $height, 'white', 'JPG');

        return $image;
    }

    protected function generateGdImage($image)
    {
        imagejpeg($image);
        imagedestroy($image);
    }
}

Everything was working well until I develop a docker container.

I am using php:7.4-fpm

Actually, I fixed this using other generator method $gerador = new \Picqer\Barcode\BarcodeGeneratorPNG(); and it worked well. But I thought important to report that.

Thanks.

[casperbakker]

It sounds like your docker container does not contain the GD module. Which is weird, because the PNG generator uses the same one.

[developerluanramos]

@casperbakker I have installed this one in my docker container

Docker

RUN docker-php-ext-configure gd
RUN docker-php-ext-install gd

php.ini

;extension=bz2
;extension=curl
;extension=ffi
;extension=ftp
;extension=fileinfo
;extension=gd2
extension=gd
extension=zip
;extension=gettext
;extension=gmp
;extension=intl
;extension=imap
;extension=ldap
;extension=mbstring
;extension=exif      ; Must be after mbstring as it depends on it
;extension=mysqli
;extension=oci8_12c  ; Use with Oracle Database 12c Instant Client
;extension=odbc
;extension=openssl
extension=pdo_firebird
;extension=pdo_mysql
;extension=pdo_oci
;extension=pdo_odbc
;extension=pdo_pgsql
;extension=pdo_sqlite
;extension=pgsql
;extension=shmop
extension=interbase

and verifying inside the docker container with php -m I have this:

$ php -m
[PHP Modules]
Core
ctype
curl
date
dom
fileinfo
filter
ftp
gd
hash
iconv
interbase
json
libxml
mbstring
mysqlnd
openssl
pcre
PDO
PDO_Firebird
pdo_sqlite
Phar
posix
readline
Reflection
session
SimpleXML
SPL
sqlite3
standard
tokenizer
xml
xmlreader
xmlwriter
zip
zlib

[Zend Modules]

[casperbakker]

I am sorry, but I cannot help you further. It has to do with the configuration of your host. It does not have the imagejpeg() method available. That is not a bug in this library.