数组到字符串的转换对象

Question

在 woocommerce 中，我试图从高级自定义字段 (ACF) 的多维数组中获取数据，以填充 woocommerce_form_field() 选择字段选项。

如果我print_r的数据来自：

$pickup = get_field_object('pick_up', 'pick_up_list')['value'];

我有这个：

 Array
(
    [0] => Array
        (
            [name] => Hotel Cla
            [price] => 0
        )

    [1] => Array
        (
            [name] => Ritz Carlon
            [price] => 7
        )

)

然后我在使用这个数组时收到错误Array to string conversion in：

woocommerce_form_field( 'pick_up_list', array(
     'type'          => 'select',
     'class'         => array('form-row-wide'),
     'label'         => __('Pick Up'),
     'options'       => $pickup
 ));

我想要的是能够将$pickup 数组添加为选择字段。有什么帮助吗？

Answer 1

也可以在一个简单的FOR 循环中完成，同时将'name' 和'price' 值保持为<option> 提交值：

$pickup = get_field_object('pick_up', 'pick_up_list')['value'];

$options = array();

for( $i = 0; $i < count($pickup); $i++ ){
    $options[$pickup[$i]['name'].'_'.$pickup[$i]['price']] = $pickup[$i]['name'];
}

woocommerce_form_field( 'pick_up_list', array(
     'type'          => 'select',
     'class'         => array('form-row-wide'),
     'label'         => __('Pick Up'),
     'options'       => $options
));

然后一旦提交数据，您将通过这种方式同时获得'name' 和'price'：

if( isset($_POST['pick_up_list']) ){
    $pick_up_list = sanitize_text_field($_POST['pick_up_list']);
    $pick_up_list = explode('_', $pick_up_list); // Separate the merged data

    $name  = $pick_up_list[0]; // The hotel name
    $price = $pick_up_list[1]; // The hotel price
}

Answer 2

options 应该是关联数组 key => 值，试试这个：

$options = array();
foreach($pickup as $index => $values) {
    $options[$index] = $values['name'];
}

然后，调用函数：

woocommerce_form_field( 'pick_up_list', array(
   'type'          => 'select',
   'class'         => array('form-row-wide'),
   'label'         => __('Pick Up'),
   'options'       => $options
));