如果数组声明中的语句是可能的吗？

Question

可能重复:
数组(...)构造中的条件元素

这是我的代码

$product_option_value_data[] = array(
    'product_option_value_id' => $product_option_value['product_option_value_id'],
    if (isset($product_option_value_description_query->row['smallimage'])) {
        'smallimage'                  => $product_option_value_description_query->row['smallimage'],
    }
    'name'                    => $product_option_value_description_query->row['name'],
    'price'                   => $product_option_value['price'],
    'prefix'                  => $product_option_value['prefix']
);

我能做这样的事......

这是我的错误

  Parse error: syntax error, unexpected T_IF, expecting ')' in /Users/mattelhotiby/Sites/posnation/shop_pos/catalog/model/catalog/product.php on line 419 

其实我这样做了

if (isset($product_option_value_description_query->row['smallimage'])) {
    $smallimage = $product_option_value_description_query->row['smallimage'];
}else{
    $smallimage = '';
}
$product_option_value_data[] = array(
    'product_option_value_id' => $product_option_value['product_option_value_id'],
    'smallimage'                  => $smallimage,
    'name'                    => $product_option_value_description_query->row['name'],
    'price'                   => $product_option_value['price'],
    'prefix'                  => $product_option_value['prefix']
);

但是我仍然想知道在这个数组声明中有一种方法可以做一个if

Answer 1

不是if,但类似的东西是可能的:

$product_option_value_data[] = array(
    'product_option_value_id' => $product_option_value['product_option_value_id'],
    'smallimage' => (isset($product_option_value_description_query->row['smallimage'])) ?
        $product_option_value_description_query->row['smallimage'] : null,
    'name'                    => $product_option_value_description_query->row['name'],
    'price'                   => $product_option_value['price'],
    'prefix'                  => $product_option_value['prefix']
);

句法:

(<statement> ? <case: true> : <case: false>)
(1 == 1 ? 'yes!' : 'PHP is wrong')

Answer 2

也许是这个？

$array = array(
    'key1' => 'value1',
    'key2' => 'value2',
);

if (isset(...)) {
    $array['key3'] = 'value3';
}

$multiarray[] = $array;