如何使用 PHP 将 JSON 字符串数据转换为数组？答案

【问题标题】：How to convert JSON string data into array using PHP?如何使用 PHP 将 JSON 字符串数据转换为数组？
【发布时间】：2016-11-08 10:20:33
【问题描述】：

我需要将 JSON 结果转换为 PHP 中的数组。这里我使用authorize.net 支付网关沙箱。我可以在JSON 字符串中得到响应（$result）。但我不会使用json_decode 转换为 php 数组

$output = json_decode($result,true); print_r($output);

示例代码

<?php
    $data=array("createTransactionRequest" => array(
                    "merchantAuthentication" => array(
                        "name" => "2bU77DwM",
                        "transactionKey" => "92x86d7M7f6NHK98"
                     ),
                     "refId" => "9898989898",
                     "transactionRequest" => array(
                        "transactionType" => "authCaptureTransaction",
                        "amount" => "25",
                        "payment" => array(
                            "creditCard" => array(
                                "cardNumber" => "5424000000000015",
                                "expirationDate" => "1220",
                                "cardCode" => "999"
                            )
                        )
                    )
                )
            );
    $data_string = json_encode($data);

    $ch = curl_init('https://apitest.authorize.net/xml/v1/request.api');
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array(
        'Content-Type: application/json',
        'Content-Length: ' . strlen($data_string))
    );
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    $result = curl_exec($ch);
    curl_close($ch);        
    print_r($result); //Print the JSON data

    //Try to convert JSON into array
    $output = json_decode($result,true); 
    print_r($output); //Print empty

JSON 响应来自print_r($result);

http://www.jsoneditoronline.org/?id=c75c5a6a4c247ad2f0aaf7c801daad39

【问题讨论】：

可以分享一下示例json结果吗？
好吧，如果你不给我们回复的内容，那我们该如何帮助呢？
如果json_decode()无法解码字符串，那么它不是有效的JSON。
请运行示例代码并查看 JSON 响应。
你遇到了什么错误？

标签： php arrays json curl

【解决方案1】：

试试下面的代码你会得到结果。

<?php
    $data=array("createTransactionRequest" => array(
                    "merchantAuthentication" => array(
                        "name" => "2bU77DwM",
                        "transactionKey" => "92x86d7M7f6NHK98"
                     ),
                     "refId" => "9898989898",
                     "transactionRequest" => array(
                        "transactionType" => "authCaptureTransaction",
                        "amount" => "25",
                        "payment" => array(
                            "creditCard" => array(
                                "cardNumber" => "5424000000000015",
                                "expirationDate" => "1220",
                                "cardCode" => "999"
                            )
                        )
                    )
                )
            );
    $data_string = json_encode($data);

    $ch = curl_init('https://apitest.authorize.net/xml/v1/request.api');
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array(
        'Content-Type: application/json',
        'Content-Length: ' . strlen($data_string))
    );
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    $result = curl_exec($ch);
    curl_close($ch);        

// below is my code 
$final_result = json_decode( preg_replace('/[\x00-\x1F\x80-\xFF]/', '', $result), true );
echo "<pre>";
print_r($final_result);

?>

你只需要使用
$输出 = json_decode( preg_replace('/[\x00-\x1F\x80-\xFF]/', '', $result), true );

print_r($output);

我已经检查过了！它为我工作。希望这会有所帮助！

【讨论】：