To generate the image this plugin does not need to use the WordPress database and therefore IO of the database is very low..
System requirements * WordPress up and running * PHP5 or PHP7 installed * PHP-GD installed and activated * uses PHP sessions.
This plugin will create captcha displaying text, with the try to confuse OCR by drawing some random lines..
The behavior of the image can be set in the area of WordPress...
Upload psphpcaptchawp-directory to the wp-content plugins directory.
Activate the plugin through 'Plugins in WordPress.
Configure the plugin using the provided settings page...
I followed your instructions, but do not see the Captcha in the comment form.
In this case, the Captcha does not show..
Interested in development.., check out SVN repository, or subscribe to the development log by RSS...
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