apply_filters( ‘big_image_size_threshold’, int $threshold, array $imagesize, string $file, int $attachment_id )

User Contributed Notes

1. Skip to note 3 content

   squarecandy 6 years ago

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   Usage examples:

   // completely disable image size threshold
   add_filter( 'big_image_size_threshold', '__return_false' );
   
   // increase the image size threshold to 4000px
   function mynamespace_big_image_size_threshold( $threshold ) {
   	return 4000; // new threshold
   }
   add_filter('big_image_size_threshold', 'mynamespace_big_image_size_threshold', 999, 1);

   • AFAIK, you can’t return a Boolean in a string. add_filter( ‘big_image_size_threshold’, ‘__return_false’ ); …should be: add_filter( ‘big_image_size_threshold’, __return_false );

     David Adams 3 years ago
   • __return_false is a function name, and add_filter() is a function that expects a callable (in this case, a function name) for the second parameter, so it is correct to provide __return_false as a string.

     crstauf 3 years ago
   • PNG images are excluded from scaling after upload See ticket #48736. From the core: // Do not scale (large) PNG images. // May result in sub-sizes that have greater file size than the original. if ('image/png' !== $imagesize['mime']) { /* filter applied here */ }

     brasofilo 11 months ago
2. Skip to note 4 content

   cazuma 9 months ago

   You must log in to vote on the helpfulness of this noteVote results for this note: 0You must log in to vote on the helpfulness of this note

   // as of 2025, I had to specify lower priority for return false version to work
   add_filter( 'big_image_size_threshold', '__return_false', 100, 1 );