Filter hook 'image_editor_output_format'

Hook Information

Hook Parameters

Usage Examples

<?php
// Hook into image_editor_output_format
add_filter('image_editor_output_format', 'my_custom_filter', 10, 3);

function my_custom_filter($output_format, $filename, $mime_type) {
    // Your custom filtering logic here
    return $output_format;
}

Source Code Context

<?php
6347  	 *     @type string ...$0 The new mime type.
6348  	 * }
6349  	 * @param string $filename  Path to the image.
6350  	 * @param string $mime_type The source image mime type.
6351  	 */
6352  	return apply_filters( 'image_editor_output_format', $output_format, $filename, $mime_type );
6353  }

PHP Documentation

<?php
/**
	 * Filters the image editor output format mapping.
	 *
	 * Enables filtering the mime type used to save images. By default HEIC/HEIF images
	 * are converted to JPEGs.
	 *
	 * @see WP_Image_Editor::get_output_format()
	 *
	 * @since 5.8.0
	 * @since 6.7.0 The default was changed from an empty array to an array
	 *              containing the HEIC/HEIF images mime types.
	 *
	 * @param string[] $output_format {
	 *     An array of mime type mappings. Maps a source mime type to a new
	 *     destination mime type. By default maps HEIC/HEIF input to JPEG output.
	 *
	 *     @type string ...$0 The new mime type.
	 * }
	 * @param string $filename  Path to the image.
	 * @param string $mime_type The source image mime type.
	 */