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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
821 | /** |
822 | * Filter the maximum allowed upload size for import files. |
823 | * |
824 | * @since 2.3.0 |
825 | * |
826 | * @see wp_max_upload_size() |
827 | * |
828 | * @param int $max_upload_size Allowed upload size. Default 1 MB. |
829 | */ |
830 | $bytes = apply_filters( 'import_upload_size_limit', wp_max_upload_size() ); |
831 | $size = size_format( $bytes ); |
832 | $upload_dir = wp_upload_dir(); |
833 | if ( ! empty( $upload_dir['error'] ) ) : |
834 | ?><div class="error"><p><?php _e('Before you can upload your import file, you will need to fix the following error:'); ?></p> |
835 | <p><strong><?php echo $upload_dir['error']; ?></strong></p></div><?php |
836 | else : |
837 | ?> |
838 | <form enctype="multipart/form-data" id="import-upload-form" method="post" class="wp-upload-form" action="<?php echo esc_url( wp_nonce_url( $action, 'import-upload' ) ); ?>"> |
839 | <p> |