Shortcodes

basics.php

function shortcode_hello( $atts ){
  $time = ( date('G') < 9 ) ? "good morning" : "good day";
	return "Hello, and " . $time . ', my name is Daniel';
}
add_shortcode( 'hello', 'shortcode_hello' );

color.php

// Usage: 
// [colorblock color='ff9900']
// Creates a small color swatch

function shortcode_colorblock( $atts ){
    $atts = shortcode_atts( array(
        'color' => '000000',
    ), $atts, 'colorblock' );
    
    return "<div class='swatch' style='height:22px; width:50px; display:inline-block; color:#" . $atts['color'] . "'></div>";
    
}
add_shortcode( 'colorblock', 'shortcode_colorblock' );

do_shortcode.php

<?php echo do_shortcode( '[gallery ids="3,14,423" columns="3"]' ) ?>

notice.php

// Usage: 
// [message type='alert']Note that we are closed due to renovatiosn for 2 weeks[/message]

function shortcode_message( $atts, $content ){
    $atts = shortcode_atts( array(
        'type' => 'success',
    ), $atts, 'message' );
    
    return "<div class='alert " . $atts['type'] . "'>" . $content . "</div>";
    
}
add_shortcode( 'message', 'shortcode_message' );