嗨，我在制作自定义post类型小部件时遇到了一个小问题。

问题是，当我想要获取我想要在内联样式中使用的字段时，它不起作用。

这是我的代码：

class Agenda_widget extends WP_Widget{
function __construct() {
    parent::__construct(
        \'agenda_widget\', // Base ID
        \'Agenda Widget\', // Name
        array(\'description\' => __( \'Details\'))
       );
}
function update($new_instance, $old_instance) {
    $instance = $old_instance;
    $instance[\'title\'] = strip_tags($new_instance[\'title\']);
    $instance[\'numberOfListings\'] = strip_tags($new_instance[\'numberOfListings\']);
    return $instance;
}

function form($instance) {
    if( $instance) {
        $title = esc_attr($instance[\'title\']);
        $numberOfListings = esc_attr($instance[\'numberOfListings\']);
    } else {
        $title = \'\';
        $numberOfListings = \'\';
    }
    ?>
        <p>
        <label for="<?php echo $this->get_field_id(\'title\'); ?>"><?php _e(\'Title\', \'agenda_widget\'); ?></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; ?>" />
        </p>
        <p>
        <label for="<?php echo $this->get_field_id(\'numberOfListings\'); ?>"><?php _e(\'Number of Listings:\', \'agenda_widget\'); ?></label>
        <select id="<?php echo $this->get_field_id(\'numberOfListings\'); ?>"  name="<?php echo $this->get_field_name(\'numberOfListings\'); ?>">
            <?php for($x=1;$x<=30;$x++): ?>
            <option <?php echo $x == $numberOfListings ? \'selected="selected"\' : \'\';?> value="<?php echo $x;?>"><?php echo $x; ?></option>
            <?php endfor;?>
        </select>
        </p>
    <?php
    }

function widget($args, $instance) {
    extract( $args );
    $title = apply_filters(\'widget_title\', $instance[\'title\']);
    $numberOfListings = $instance[\'numberOfListings\'];
    echo $before_widget;
    if ( $title ) {
        echo $before_title . $title . $after_title;
    }
    $this->getRealtyListings($numberOfListings);
    echo $after_widget;
}

function getRealtyListings($numberOfListings) { //html
    global $post;
    add_image_size( \'agenda_widget_size\', 85, 45, false );
    $listings = new WP_Query();
    $listings->query(\'post_type=agenda&posts_per_page=\' . $numberOfListings );
    if($listings->found_posts > 0) {
        echo \'<ul class="agenda">\';
            while ($listings->have_posts()) {
                $listings->the_post();
                $listItem = \'<li class="agenda-listing">\';
                $listItem .= \'<header id="agenda-block">\';
                $listItem .= \'<div id="agenda-info">\';
                $listItem .= \'<div id="agenda-info-time">\';
                $listItem .= get_field(\'time\');  
                $listItem .= \'</div>\';
                $listItem .= \'<div id="agenda-info-title">\';
                $listItem .= get_field(\'title\'); 
                $listItem .= \'</div>\';
                $listItem .= \'<div id="agenda-info-name">\';
                $listItem .= get_field(\'speaker\'); 
                $listItem .= \'</div>\';
                $listItem .= \'<div id="agenda-block-image-responsive" style="get_field(\'speaker-img\', \'option\' );">\';
                $listItem .= \'</div>\';
                $listItem .= \'</div></header>\';
                $listItem .= \'</li>\';
                echo $listItem;
            }

        echo \'</ul>\';
        wp_reset_postdata();
    }else{
        echo \'<p style="padding:25px;">No listing found</p>\';
    }
}


} //end class Trm_Agenda_widget
register_widget(\'Agenda_widget\');

$listItem .= \'<div id="agenda-block-image-responsive" style="get_field(\'speaker-img\', \'option\' );">\';

我想做的是，我想用一个acf get\\u字段函数自动将一个图像放入listitem中。

请帮忙