Upgraded php & wordpress but theme broke

<?php the_post_thumbnail(thumbnail); ?> should be <?php the_post_thumbnail( “thumbnail” ); ?>. thumbnail is not a defined constant, and the updated version of PHP is no longer converting undefined constants into strings for you. It appears that PHP changed the “undefined constants” message from a notice to a fatal error sometime around version 8.

WP-CLI command to update plugins and core fails in crontab?

Understanding this answer requires preliminary knowledge in a system administration and Linux issue named “Environment variables”. Acquiring this knowledge could be done with a didactic Linux book, course, or tutor. If one explanation was bad, seek another. The problem and the solution: It seems to happen due to a partial utilization of the PATH environment … Read more

Fatal error after update 6.5 – wp-includes/media.php:2134 svg inline sizes equal 0

If you dig into the function wp_img_tag_add_width_and_height_attr, you see the line where it goes wrong: $size_array[1] = (int) round( $size_array[1] * $style_width / $size_array[0] ); Before this there are two places to do something. The first is a filter to bypass generating any widths and heights, which you could use like this: add_filter (‘wp_img_tag_add_width_and_height_attr’, ‘wpse424749_no_height_width’); … Read more

WordPress not showing plugin updates available

There are two constants related to preventing editing of themes and plugins through the WordPress admin: DISALLOW_FILE_EDIT and DISALLOW_FILE_MODS. If these constants are set to true, editing themes and plugins in the WordPress admin will be disabled, and no core or plugin updates will be shown. Check if those constants are defined, and if they … Read more

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