无法向metabox添加类

Question

为此，我尝试向metabox添加一个类，这样我就以这种方式创建了metabox元素：

array( 
    'label' => esc_html__( 'Property Lot Size', 'zoacres' ),
    'desc'  => esc_html__( 'Enter lot size of property by number. Do not use any special characters like comma, dot etc... Example 10000', 'zoacres' ), 
    'id'    => $prefix.'lot_size',
    'tab'   => esc_html__( 'Property Details', 'zoacres' ),
    'type'  => 'text',
    'default'   => ''
    'class' => 'zoacres-main'
),

上面的代码生成metabox，但我没有类zoacres-main，为什么？

Answer 1

您没有提到用于生成此元数据的库，但我猜它是cmb2库，如果是这样的话，您应该按如下方式更改数组参数：

array( 
    'label' => esc_html__( 'Property Lot Size', 'zoacres' ),
    'desc'  => esc_html__( 'Enter lot size of property by number. Do not use any special characters like comma, dot etc... Example 10000', 'zoacres' ), 
    'id'    => $prefix.'lot_size',
    'tab'   => esc_html__( 'Property Details', 'zoacres' ),
    'type'  => 'text',
    'default'   => '',
    'attributes' => array(
       'class' => 'zoacres-main'
     )
),