Fatal error: Call to undefined function imagettftext() really-simple-captcha.php

Hi there,

Having just setup a WordPress Docker image.

See: https://hub.docker.com/_/wordpress/

I’ve migrated an existing WordPress installation over to try it out.

I discovered that your plugin produced this error:

Fatal error: Call to undefined function imagettftext() in /var/www/html/wp-content/plugins/really-simple-captcha/really-simple-captcha.php on line 124

You’ll find that the imagettftext function requires both the GD library and the FreeType library.

The WordPress Docker image is actually based on php:5.6-apache, which does not appear to include the FreeType library by standard.

Have you considered using a fallback instead?

eg:

$use_font = ($font_path !== '' && file_exists($font_path) && function_exists('imagettftext'));

See: https://github.com/bcit-ci/CodeIgniter/blob/develop/system/helpers/captcha_helper.php#L282

https://ww.wp.xz.cn/plugins/really-simple-captcha/