PHP：从复杂数组获取单个值

Question

I have the following:

Array ( [0] => Array ( [0] => Array ( [value] => 150109 [format] => [safe_value] => 150109 ) ) )

I need to get the value "150109", but how on earth do I accomplish that?

Answer 1

Top level:

print_r($data);
// Output: Array ( [0] => Array ( [0] => Array ( [value] => 150109 [format] => [safe_value] => 150109 ) ) )

Outmost element:

print_r($data[0]);
// Output: Array ( [0] => Array ( [value] => 150109 [format] => [safe_value] => 150109 ) )

Next level:

print_r($data[0][0]);
// Output: Array ( [value] => 150109 [format] => [safe_value] => 150109 )

The final value

echo $data[0][0]['value'];
// Output: 150109

Accessing each layer of values this way makes it easier to figure out how to get to your desired value. After a while this becomes more obvious.

Answer 2

您可以在多维数组上连续使用数组的获取值：
$value = $array[0][0]["value"];