我可以在PowerShell中运行curl命令，它可以工作，但当我尝试移动到php脚本时却不行（php也可以从命令行运行）命令行：
curl.exe https://api.bigcommerce.com/stores/a1b2c3d4/v3/customers/attributes -H "x-auth-token: a1b2c3d4a1b2c3d4a1b2c3d4a1b2c3d4" -H "Content-Type: application/json"
退货：

{"data":[{"id":2,"name":"gp_customer_id","type":"string","date_created":"2021-12-14T14:18:10Z","date_modified":"2021-12-14T14:18:10Z"}],"meta":{"pagination":{"total":1,"count":1,"per_page":50,"current_page":1,"total_pages":1}}}
PS C:\Users\JAMESB\Documents\webroot\BC\swamp

PHP文件：

$ACCESS_TOKEN = "a1b2c3d4a1b2c3d4a1b2c3d4a1b2c3d4";
$STORE_HASH = "a1b2c3d4";

$headers = array();
$headers[] = "x-auth-token: $ACCESS_TOKEN";
$headers[] = 'Content-Type: application/json';
$headers[] = 'ACCEPT: application/json';
var_dump ($headers);
    echo "https://api.bigcommerce.com/stores/$STORE_HASH/v3/customers/attributes\n";
$state_ch = curl_init();
//    curl_setopt($state_ch, CURLOPT_URL,"https://api.bigcommerce.com/stores/$STORE_HASH/v3/customers/attributes");
    curl_setopt($state_ch, CURLOPT_URL,"https://api.bigcommerce.com/stores/a1b2c3d4/v3/customers/attributes");
    curl_setopt($state_ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($state_ch, CURLOPT_HTTPHEADER, $headers);
var_dump($state_ch);
    $state_result = curl_exec ($state_ch);
var_dump($state_result);
    $state_result = json_decode($state_result);

var_dump($state_result);
?>

退货：

array(3) {
[0]=>   string(45) "x-auth-token: a1b2c3d4a1b2c3d4a1b2c3d4a1b2c3d4"
[1]=>   string(30) "Content-Type: application/json"     
[2]=>   string(24) "ACCEPT: application/json"}
https://api.bigcommerce.com/stores/a1b2c3d4/v3/customers/attributes  resource(4) of type (curl)  bool(false)  NULL

谢谢！金布斯