PHP使用cURL GET JSON,对返回的数组进行排序

Question

我使用PHP从Web服务返回JSON.我能够获得JSON,解码它,并查看结果.但是,我需要能够按特定值对数组进行排序.我目前有:

// JSON URL which should be requested
$json_url = 'https://*******/maincategories';

// Initializing curl
$ch = curl_init( $json_url );

// Configuring curl options
$options = array(
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => array('Content-type: application/json') ,
);

// Setting curl options
curl_setopt_array( $ch, $options );

// Getting results
$result =  curl_exec($ch); // Getting JSON result string

$data = json_decode($result);

ksort($data, "Total");

print_r($data);

这print_r($data);打印:

Array ( [0] => stdClass Object ( [Goal] => 10000000 [Name] => Rental [Total] => 500000 ) [1] => stdClass Object ( [Goal] => 8000000 [Name] => National Sales [Total] => 750000 ) [2] => stdClass Object ( [Goal] => 120000000 [Name] => Vendor Leasing [Total] => 500000 ) )

我试图使用kso​​rt并通过Total密钥按升序对数组进行排序.如何对此数组进行排序,以使总数最高的对象成为第一个,其余的按升序排列？

Answer 1

这应该适合你:

usort($data, function ($a, $b) {
    return $a->Total - $b->Total;
});

请注意,如果您想要关联数组而不是对象json_decode,请使用json_decode(..., true)