PHP 判断某值为 1，数组中含有某元素，为 0 不含有某元素

如果某值为1，数组的子数组中含有某元素，如果0，那么不含有某元素，大家能否提供一下方法？下面的是我自己写的，由于PHP不是很擅长，求指教
<?php
if (ofget_option('themetuts_download_open')==1) {
register_field_group(array (
'id' => 'acf%e4%b8%8b%e8%bd%bd%e6%bc%94%e7%a4%ba',
'title' => '下载演示',
'fields' => array (
array (
'key' => 'field_553a4b55979cd',
'label' => '开启演示以及下载',
'name' => 'post_down_open',
'type' => 'radio',
'instructions' => '请选择本篇文章是否需要开启演示以及下载功能',
'choices' => array (
1 => '是',
0 => '否',
),
'other_choice' => 0,
'save_other_choice' => 0,
'default_value' => 0,
'layout' => 'horizontal',
),

if (of_get_option('themetuts_download_file')==1) { 
        array (
            'key' => 'field_553a4f38ec358',
            'label' => '显示资源大小',
            'name' => 'post_down_yuan_radio',
            'type' => 'radio',
            'choices' => array (
                1 => '是',
                0 => '否',
            ),
            'other_choice' => 0,
            'save_other_choice' => 0,
            'default_value' => 0,
            'layout' => 'horizontal',
        ),
        array (
            'key' => 'field_553a4f86ec359',
            'label' => '资源大小',
            'name' => 'post_down_yuan',
            'type' => 'text',
            'conditional_logic' => array (
                'status' => 1,
                'rules' => array (
                    array (
                        'field' => 'field_553a4f38ec358',
                        'operator' => '==',
                        'value' => '1',
                    ),
                ),
                'allorany' => 'all',
            ),
            'default_value' => '',
            'placeholder' => '',
            'prepend' => '',
            'append' => '',
            'formatting' => 'html',
            'maxlength' => '',
        ),
        }


        if (of_get_option('themetuts_download_update_time')==1) { 
        array (
            'key' => 'field_553a4f9bec35a',
            'label' => '显示更新时间',
            'name' => 'post_down_update_radio',
            'type' => 'radio',
            'choices' => array (
                1 => '是',
                0 => '否',
            ),
            'other_choice' => 0,
            'save_other_choice' => 0,
            'default_value' => 0,
            'layout' => 'horizontal',
        ),
        array (
            'key' => 'field_553a4fc8ec35b',
            'label' => '资源更新时间',
            'name' => 'post_down_update',
            'type' => 'date_picker',
            'conditional_logic' => array (
                'status' => 1,
                'rules' => array (
                    array (
                        'field' => 'field_553a4f9bec35a',
                        'operator' => '==',
                        'value' => '1',
                    ),
                ),
                'allorany' => 'all',
            ),
            'date_format' => 'yymmdd',
            'display_format' => 'dd/mm/yy',
            'first_day' => 1,
        ),
        }


    ),
    'location' => array (
        array (
            array (
                'param' => 'post_type',
                'operator' => '==',
                'value' => 'post',
                'order_no' => 0,
                'group_no' => 0,
            ),
        ),
        array (
            array (
                'param' => 'post_type',
                'operator' => '==',
                'value' => 'page',
                'order_no' => 0,
                'group_no' => 1,
            ),
        ),
    ),
    'options' => array (
        'position' => 'normal',
        'layout' => 'default',
        'hide_on_screen' => array (
        ),
    ),
    'menu_order' => 40,
));

}
?>