Ive是一个设置为过滤各种类别的数组，目前它只显示10个，最多显示10个帖子，而不是所有帖子。我哪里出错了？

<div class="select-search">

    <div class="ten columns beer-filter">
    <form  id="category-select" class="select-search" action="<?php echo esc_url( home_url( \'/\' ) ); ?>" method="get">

        <?php
        $args = array(
            \'show_option_none\' => __( \'Filter By Beer Type:\' ),
            \'show_count\'       => 1,
            \'orderby\'          => \'name\',
            \'echo\'             => 0,
            \'child_of\'           => 2,
            \'exclude\' => \'\',
        );
        ?>

        <?php $select  = wp_dropdown_categories( $args ); ?>
        <?php $replace = "<select$1 onchange=\'return this.form.submit()\'>"; ?>
        <?php $select  = preg_replace( \'#<select([^>]*)>#\', $replace, $select ); ?>

        <?php echo $select; ?>

        <noscript>
            <input type="submit" value="View" />
        </noscript>

    </form>

    </div>
    <div class="two columns"><a href="http://beerinbelfast.com/beers/"><button class="filter-button">Reset</button></a></div>

</div>