Ticket #31029: 31029.3.patch

src/wp-includes/media-template.php

@@ -736 +736 @@
                         <span><?php _e('Columns'); ?></span>
                         <select class="columns" name="columns"
                                 data-setting="columns">
-                                <?php for ( $i = 1; $i <= 9; $i++ ) : ?>
+                                <?php
+                                /**
+                                 * Filter the range of gallery columns available in the Media Gallery settings drop-down.
+                                 *
+                                 * @since 4.3.0
+                                 *
+                                 * @param array $limits Array containing minimum ('min') and maximum ('max') values
+                                 *                      constituting the range of gallery columns that can be chosen
+                                 *                      in the Media Gallery settings. Default minimum is 1, maximum is 9.
+                                 */
+                                $column_limits = apply_filters( 'media_gallery_column_limits', array( 'min' => 1, 'max' => 9 ) );
+
+                                $column_limits = wp_parse_args( $column_limits, array( 'min' => 1, 'max' => 9 ) );
+
+                                for ( $i = absint( $column_limits['min'] ); $i <= absint( $column_limits['max'] ); $i++ ) : ?>
                                         <option value="<?php echo esc_attr( $i ); ?>" <#
                                                 if ( <?php echo $i ?> == wp.media.galleryDefaults.columns ) { #>selected="selected"<# }
                                         #>>