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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 |
---|---|
1000 | /** |
1001 | * Filters the maximum allowed upload size for import files. |
1002 | * |
1003 | * @since 2.3.0 |
1004 | * |
1005 | * @see wp_max_upload_size() |
1006 | * |
1007 | * @param int $max_upload_size Allowed upload size. Default 1 MB. |
1008 | */ |
1009 | $bytes = apply_filters( 'import_upload_size_limit', wp_max_upload_size() ); |
1010 | $size = size_format( $bytes ); |
1011 | $upload_dir = wp_upload_dir(); |
1012 | if ( ! empty( $upload_dir['error'] ) ) : |
1013 | ?> |
1014 | <div class="error"><p><?php _e( 'Before you can upload your import file, you will need to fix the following error:' ); ?></p> |
1015 | <p><strong><?php echo $upload_dir['error']; ?></strong></p></div> |
1016 | <?php |
1017 | else : |
1018 | ?> |