Question

<?php
$postcode=$_POST['script'];

// $myfile = file_get_contents("./aircondata/".$postcode.".json");
// echo $myfile;

$myfile = '{
  "1": { "Brand":"MITSUBISHI HEAVY INDUSTRIES, LTD.", "Model_No":"SRK20ZMXA-S / SRC20ZMXA-S", "C.Power_Inp_Rated":0.35, "H.Power_Inp_Rated":0.45, "KWH":1881.95, "Cost":564.585},
  "2": { "Brand":"MITSUBISHI HEAVY INDUSTRIES LTD.", "Model_No":"SRK20ZIX-S", "C.Power_Inp_Rated":0.35, "H.Power_Inp_Rated":0.45, "KWH":1881.95, "Cost":564.585},
  "3": { "Brand":"MITSUBISHI HEAVY INDUSTRIES LTD.", "Model_No":"SRK20ZJX-S", "C.Power_Inp_Rated":0.35, "H.Power_Inp_Rated":0.45, "KWH":1881.95, "Cost":564.585},
  "4": { "Brand":"TOSHIBA", "Model_No":"RAS-07PKVP-E/PAVP-E", "C.Power_Inp_Rated":0.355, "H.Power_Inp_Rated":0.44, "KWH":1908.835, "Cost":572.6505},
  "5": { "Brand":"CARRIER", "Model_No":"50PCH006", "C.Power_Inp_Rated":0.4, "H.Power_Inp_Rated":0.4, "KWH":2150.8, "Cost":645.24}
}';


$ac_decoded = json_decode($myfile, true);

echo $ac_decoded;
foreach ($ac_decoded as $key => $value) {
    if($key=="1"){
        echo $value["Brand"];

    }

}
echo "okay";

fclose($myfile);

?>

我的问题是，上面的代码在json数组存在于同一个.php文件中时有效，但注释掉的代码（使用file_get_contents）对json_decode不起作用，只有在回显时才有效。请帮忙......谢谢!!

要回答第一个回复中的建议，以下是.json文件，不确定格式是否正确

'{
  "1": { "Brand":"MITSUBISHI HEAVY INDUSTRIES, LTD.", "Model_No":"SRK20ZMXA-S / SRC20ZMXA-S", "C.Power_Inp_Rated":0.35, "H.Power_Inp_Rated":0.45, "KWH":1881.95, "Cost":564.585},
  "2": { "Brand":"MITSUBISHI HEAVY INDUSTRIES LTD.", "Model_No":"SRK20ZIX-S", "C.Power_Inp_Rated":0.35, "H.Power_Inp_Rated":0.45, "KWH":1881.95, "Cost":564.585},
  "3": { "Brand":"MITSUBISHI HEAVY INDUSTRIES LTD.", "Model_No":"SRK20ZJX-S", "C.Power_Inp_Rated":0.35, "H.Power_Inp_Rated":0.45, "KWH":1881.95, "Cost":564.585},
  "4": { "Brand":"TOSHIBA", "Model_No":"RAS-07PKVP-E/PAVP-E", "C.Power_Inp_Rated":0.355, "H.Power_Inp_Rated":0.44, "KWH":1908.835, "Cost":572.6505},
  "5": { "Brand":"CARRIER", "Model_No":"50PCH006", "C.Power_Inp_Rated":0.4, "H.Power_Inp_Rated":0.4, "KWH":2150.8, "Cost":645.24}
}'

Answer 1

参考我现有的Answer ..您在file_get_contents电话中有语法：

$myfile = file_get_contents("./aircondata/".$postcode.".json");

您必须转义特殊字符，如下所示：

$myfile = file_get_contents(".//aircondata//".$postcode.".json");

P.S。：你一直关注我认为在你的服务器上没有活动的php错误报告。

<强>更新

另一个可能的原因可能是所包含文件的JSON内容的格式，请确保validate the contents。

如果该文件中的数据确实用单引号括起来，那么这是一个无效的JOSN文件。

php打开一个.json字符串文件并转换为数组

1 个答案: