image_meta.php

<?php

function bfa_image_size() {
    $meta = wp_get_attachment_metadata();
    echo $meta['width']. '&times;' . $meta['height'];
}


function bfa_image_meta( $args = '' ) {

    $defaults = array(
        'keys' => '',
        'before' => '',
        'after' => '',
        'item_before' => '',
        'item_after' => '',
        'item_sep' => ' &middot; ',
        'key_before' => '',
        'key_after' => ': ',
        'value_before' => '',
        'value_after' => '',
        'display_empty' => FALSE
    );

    $r = wp_parse_args( $args, $defaults );
    extract( $r, EXTR_SKIP );

    $meta = wp_get_attachment_metadata();

    $string_array = array();

    // All keys, alphabetically sorted, as provided by wp_get_attachment_metadata()
    if( $keys == '' ) {
        $array_keys = array_keys( $meta['image_meta'] );
    // Only keys specificed in parameter:
    } else {
        $array_keys = array_map( 'trim', explode( ',', $keys ) );
    }

    foreach( $array_keys as $key ) {

        $value = $meta['image_meta'][$key];

        if( $display_empty === TRUE || ( $value != '' && $value != '0' ) ) {

            if( $key == 'created_timestamp' )
                // Transform timestamp into readable date, based on default WP date/time settings:
                $value = date( get_option('date_format') . ' - ' . get_option('time_format'), $value );

            // Prettify key
            $key = ucwords( str_replace( '_', ' ', $key ) );
            $key = $key == 'Iso' ? 'ISO' : $key;


            $key = str_replace(
                array(
                    'Aperture',
                    'Credit',
                    'Camera',
                    'Caption',
                    'Created Timestamp',
                    'Copyright',
                    'Focal Length',
                    'ISO',
                    'Shutter Speed',
                    'Title'
                ),
                array(
                    __( 'Aperture', 'montezuma' ),
                    __( 'Credit', 'montezuma' ),
                    __( 'Camera', 'montezuma' ),
                    __( 'Caption', 'montezuma' ),
                    __( 'Timestamp', 'montezuma' ),
                    __( 'Copyright', 'montezuma' ),
                    __( 'Focal Length', 'montezuma' ),
                    __( 'ISO', 'montezuma' ),
                    __( 'Shutter Speed', 'montezuma' ),
                    __( 'Title', 'montezuma' )
                ),
                $key
            );


            // Glue it together
            $string = $item_before
                        . $key_before
                        . $key
                        . $key_after
                        . $value_before
                        . $value
                        . $value_after
                        . $item_after;

            $string_array[] = $string;
        }
    }

    $final_string = '';

    // Glue together with item separator
    if( ! empty( $string_array ) )
        $final_string = implode( $item_sep, $string_array );

    // Wrap into parent container
    if( $final_string != '' )
        $final_string = $before . $final_string . $after;

    echo $final_string;
}