If has $title in widgets

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I’m writing a widget to display 125 x 125 pixel ads. There are 6 spaces for the ads and currently all works.

However, I would to add some conditional logic so that if nothing is entered in the values in the widget admin for an ad, then no add is shown.

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I think this can be done by using PHP if or something, I can’t remember what it is exactly. I need it with the <?php & ?> tags on. It needs to check if $adone exists and if not display an empty space.

I know this code here is wrong but something like this: 

<?php if_has($adone_img)  ?>
/** Ad 1 code here */
<?php else : ?>
<?php endif; ?>

The widget class: 

<?php
/**
 * square_ad Class
 */
class square_ad extends WP_Widget {
    /** constructor */
    function square_ad() {
        $widget_ops = array('classname' => 'square_ad', 'description' => 'Up to 6 125px by 125px ads for your sidebar.');
        $control_ops = array('id_base' => 'square_ad');
        $this->WP_Widget('square_ad', 'SILVERLINE 125 Ad', $widget_ops, $control_ops);  
    }

    /** @see WP_Widget::widget */
    function widget( $args, $instance ) {
        extract( $args );
        $title = apply_filters( 'widget_title', $instance['title'] );

        $adone_img = apply_filters( 'adone', $instance['adone_img'] );
        $adone_link = apply_filters( 'adone', $instance['adone_link'] );

        $adtwo_img = apply_filters( 'adtwo', $instance['adtwo_img'] );
        $adtwo_link = apply_filters( 'adtwo', $instance['adtwo_link'] );    

        $adthree_img = apply_filters( 'adthree', $instance['adthree_img'] );
        $adthree_link = apply_filters( 'adthree', $instance['adthree_link'] );

        $adfour_img = apply_filters( 'adfour', $instance['adfour_img'] );
        $adfour_link = apply_filters( 'adfour', $instance['adfour_link'] );

        $adfive_img = apply_filters( 'adfive', $instance['adfive_img'] );
        $adfive_link = apply_filters( 'adfive', $instance['adfive_link'] );

        $adsix_img = apply_filters( 'adsix', $instance['adsix_img'] );
        $adsix_link = apply_filters( 'adsix', $instance['adsix_link'] );

        echo('<h3 style="margin-left:5px; margin-top:-30px;" class="widget-title-text">');
        echo($title);
        echo('</h3>');
        echo('<div id="widget-container-125">');
 ?>



<a href="<?php echo ($adone_link);?>"><img class="box-container" src="<?php echo ($adone_img);?>" width="125" height="125" /></a>
<a href="<?php echo ($adtwo_link);?>"><img align="right" class="box-container" src="<?php echo ($adtwo_img);?>"  width="125" height="125" /><br/></a>
<a href="<?php echo ($adthree_link);?>"><img class="box-container" src="<?php echo ($adthree_img);?>" width="125" height="125" /></a>
<a href="<?php echo ($adfour_link);?>"><img align="right" class="box-container" src="<?php echo ($adfour_img);?>"  width="125" height="125" /><br/></a>
<a href="<?php echo ($adfive_link);?>"><img class="box-container" src="<?php echo ($adfive_img);?>" width="125" height="125" /></a>
<a href="<?php echo ($adsix_link);?>"><img class="box-container" src="<?php echo ($adsix_img);?>" width="125" height="125" /></a>

<style type="text/css">
</style>
<br/><br/></div>

        <?php 
    }

    /** @see WP_Widget::update */
    function update( $new_instance, $old_instance ) {
        $instance = $old_instance;
        $instance['title'] = strip_tags($new_instance['title']);

        $instance['adone_img'] = strip_tags($new_instance['adone_img']);
        $instance['adone_link'] = strip_tags($new_instance['adone_link']);

        $instance['adtwo_img'] = strip_tags($new_instance['adtwo_img']);
        $instance['adtwo_link'] = strip_tags($new_instance['adtwo_link']);

        $instance['adthree_img'] = strip_tags($new_instance['adthree_img']);
        $instance['adthree_link'] = strip_tags($new_instance['adthree_link']);

        $instance['adfour_img'] = strip_tags($new_instance['adfour_img']);
        $instance['adfour_link'] = strip_tags($new_instance['adfour_link']);

        $instance['adfive_img'] = strip_tags($new_instance['adfive_img']);
        $instance['adfive_link'] = strip_tags($new_instance['adfive_link']);

        $instance['adsix_img'] = strip_tags($new_instance['adsix_img']);
        $instance['adsix_link'] = strip_tags($new_instance['adsix_link']);
        return $instance;
    }

    /** @see WP_Widget::form */
    function form( $instance ) {
        if ( $instance ) {
            $title = esc_attr( $instance[ 'title' ] );
            $adone_img = esc_attr( $instance[ 'adone_img' ] );
            $adone_link = esc_attr( $instance[ 'adone_link' ] );

            $adtwo_img = esc_attr( $instance[ 'adtwo_img' ] );
            $adtwo_link = esc_attr( $instance[ 'adtwo_link' ] );

            $adthree_img = esc_attr( $instance[ 'adthree_img' ] );
            $adthree_link = esc_attr( $instance[ 'adthree_link' ] );

            $adfour_img = esc_attr( $instance[ 'adfour_img' ] );
            $adfour_link = esc_attr( $instance[ 'adfour_link' ] );

            $adfive_img = esc_attr( $instance[ 'adfive_img' ] );
            $adfive_link = esc_attr( $instance[ 'adfive_link' ] );

            $adsix_img = esc_attr( $instance[ 'adsix_img' ] );
            $adsix_link = esc_attr( $instance[ 'adsix_link' ] );
        }
        else {
            $title = __( '', 'text_domain' );
        }
        ?>
        <p>
        <label for="<?php echo $this->get_field_id('title'); ?>"><?php _e('Title:'); ?></label>
        <input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo $title; ?>" />


        <h4>Ad One</h4>
        <label for="<?php echo $this->get_field_id('adone_img'); ?>"><?php _e('Image URL:'); ?></label>
        <input class="widefat" id="<?php echo $this->get_field_id('adone_img'); ?>" name="<?php echo $this->get_field_name('adone_img'); ?>" type="text" value="<?php echo $adone_img; ?>" />
        <label for="<?php echo $this->get_field_id('adone_link'); ?>"><?php _e('AD Link:'); ?></label>
        <input class="widefat" id="<?php echo $this->get_field_id('adone_link'); ?>" name="<?php echo $this->get_field_name('adone_link'); ?>" type="text" value="<?php echo $adone_link; ?>" />

        <h4>Ad Two</h4>
        <label for="<?php echo $this->get_field_id('adtwo_img'); ?>"><?php _e('Image URL:'); ?></label>
        <input class="widefat" id="<?php echo $this->get_field_id('adtwo_img'); ?>" name="<?php echo $this->get_field_name('adtwo_img'); ?>" type="text" value="<?php echo $adtwo_img; ?>" />
        <label for="<?php echo $this->get_field_id('adtwo_link'); ?>"><?php _e('AD Link:'); ?></label>
        <input class="widefat" id="<?php echo $this->get_field_id('adtwo_link'); ?>" name="<?php echo $this->get_field_name('adtwo_link'); ?>" type="text" value="<?php echo $adtwo_link; ?>" />

        <h4>Ad Three</h4>
        <label for="<?php echo $this->get_field_id('adthree_img'); ?>"><?php _e('Image URL:'); ?></label>
        <input class="widefat" id="<?php echo $this->get_field_id('adthree_img'); ?>" name="<?php echo $this->get_field_name('adthree_img'); ?>" type="text" value="<?php echo $adthree_img; ?>" />
        <label for="<?php echo $this->get_field_id('adthree_link'); ?>"><?php _e('AD Link:'); ?></label>
        <input class="widefat" id="<?php echo $this->get_field_id('adthree_link'); ?>" name="<?php echo $this->get_field_name('adthree_link'); ?>" type="text" value="<?php echo $adthree_link; ?>" />

        <h4>Ad Four</h4>
        <label for="<?php echo $this->get_field_id('adfour_img'); ?>"><?php _e('Image URL:'); ?></label>
        <input class="widefat" id="<?php echo $this->get_field_id('adfour_img'); ?>" name="<?php echo $this->get_field_name('adfour_img'); ?>" type="text" value="<?php echo $adfour_img; ?>" />
        <label for="<?php echo $this->get_field_id('adfour_link'); ?>"><?php _e('AD Link:'); ?></label>
        <input class="widefat" id="<?php echo $this->get_field_id('adfour_link'); ?>" name="<?php echo $this->get_field_name('adfour_link'); ?>" type="text" value="<?php echo $adfour_link; ?>" />

        <h4>Ad Five</h4>
        <label for="<?php echo $this->get_field_id('adfive_img'); ?>"><?php _e('Image URL:'); ?></label>
        <input class="widefat" id="<?php echo $this->get_field_id('adfive_img'); ?>" name="<?php echo $this->get_field_name('adfive_img'); ?>" type="text" value="<?php echo $adfive_img; ?>" />
        <label for="<?php echo $this->get_field_id('adfive_link'); ?>"><?php _e('AD Link:'); ?></label>
        <input class="widefat" id="<?php echo $this->get_field_id('adfive_link'); ?>" name="<?php echo $this->get_field_name('adfive_link'); ?>" type="text" value="<?php echo $adfive_link; ?>" />

        <h4>Ad Six</h4>
        <label for="<?php echo $this->get_field_id('adsix_img'); ?>"><?php _e('Image URL::'); ?></label>
        <input class="widefat" id="<?php echo $this->get_field_id('adsix_img'); ?>" name="<?php echo $this->get_field_name('adsix_img'); ?>" type="text" value="<?php echo $adsix_img; ?>" />
        <label for="<?php echo $this->get_field_id('adsix_link'); ?>"><?php _e('AD Link:'); ?></label>
        <input class="widefat" id="<?php echo $this->get_field_id('adsix_link'); ?>" name="<?php echo $this->get_field_name('adsix_link'); ?>" type="text" value="<?php echo $adsix_link; ?>" />
                </p>
        <?php 
    }

} // class square_ad

// register square_ad widget
add_action( 'widgets_init', create_function( '', 'return register_widget("square_ad");' ) );
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1 comment

  1. Should be possible like this:

    <?php
    /** @see WP_Widget::widget */
        function widget( $args, $instance ) {
            extract( $args );
            $title = apply_filters( 'widget_title', $instance['title'] );
            # >>>> NEW
            if ( ! isset( $title ) OR empty( $title ) );
                return;
            # <<<< NEW
            echo $before_widget;
            if ( $title )
                echo $before_title . $title . $after_title; 
            ?>
            Hello, World!
            <?php 
            echo $after_widget;
        }
?>