json_encode() 返回 false

2024-03-15

这是我第一次面对数组结果布尔值的 var_dumping json_encode。

我有一个由反序列化产生的数组。我 var_dumped 它并确保它是一个有效的数组。结果如下。这只是一部分,而不是整个调试视图。

array (size=3)
'id' => string 'asco-power-technologies-l-p' (length=27)
  'name' => string 'asco-power-technologies-l-p' (length=27)
  'children' => 
    array (size=2)
      0 => 
        array (size=4)
          'id' => string 'apl-logistics' (length=13)
          'name' => string 'APL LOGISTICS' (length=13)
          'data' => 
            array (size=2)
              'band' => string 'ASCO POWER TECHNOLOGIES ,L.P.' (length=29)
              'relation' => string 'Buyer of band' (length=13)
          'children' => 
            array (size=11)
              0 => &
                array (size=3)
                  'id' => string 'trisa-ag' (length=8)
                  'name' => string 'TRISA AG' (length=8)
                  'data' => 
                    array (size=2)
                      'band' => string 'APL LOGISTICS' (length=13)
                      'relation' => string 'Buyer of band' (length=13)
              1 => &
                array (size=3)
                  'id' => string 'colgate-sanxiao-co-ltd' (length=22)
                  'name' => string 'COLGATE SANXIAO CO LTD' (length=22)
                  'data' => 
                    array (size=2)
                      'band' => string 'APL LOGISTICS' (length=13)
                      'relation' => string 'Buyer of band' (length=13)

.....

之后我用最大深度 = 3 对它进行 json_encode。请注意,我使用的是 PHP 5.5 并在 Apache 2.4 上运行,因此它支持 json_encode() 上的深度参数。这就是我正在做的事情。

    $array = unserialize($serial);
    var_dump($array);
    $json = json_encode($array, JSON_PRETTY_PRINT, 3);
    var_dump($json);

最后我得到了$arrayvar_dumped 正确并且$jsonvar_dumped 的结果为 false 布尔值。它出什么问题了?是否是由于早期的 PHP 版本,不正确的 var_dump 会导致错误的布尔值?有人遇到过这个吗?

这是序列化字符串。整个字符串太乱了,所以我只粘贴了一段。

a:3:{s:2:"id";s:27:"asco-power-technologies-l-p";s:4:"name";s:27:"asco-power-technologies-l-p";s:8:"children";a:2:{i:0;a:4:{s:2:"id";s:13:"apl-logistics";s:4:"name";s:13:"APL LOGISTICS";s:4:"data";a:2:{s:4:"band";s:29:"ASCO POWER TECHNOLOGIES ,L.P.";s:8:"relation";s:13:"Buyer of band";}s:8:"children";a:11:{i:0;a:3:{s:2:"id";s:8:"trisa-ag";s:4:"name";s:8:"TRISA AG";s:4:"data";a:2:{s:4:"band";s:13:"APL LOGISTICS";s:8:"relation";s:13:"Buyer of band";}}i:1;a:3:{s:2:"id";s:22:"colgate-sanxiao-co-ltd";s:4:"name";s:22:"COLGATE SANXIAO CO LTD";s:4:"data";a:2:{s:4:"band";s:13:"APL LOGISTICS";s:8:"relation";s:13:"Buyer of band";}}i:2;a:3:{s:2:"id";s:25:"apll-on-behalf-oftongfang";s:4:"name";s:25:"APLL ON BEHALF OFTONGFANG";s:4:"data";a:2:{s:4:"band";s:13:"APL LOGISTICS";s:8:"relation";s:13:"Buyer of band";}}i:3;a:3:{s:2:"id";s:26:"apll-on-behalf-of-zhejiang";s:4:"name";s:26:"APLL ON BEHALF OF ZHEJIANG";s:4:"data";a:2:{s:4:"band";s:13:"APL LOGISTICS";s:8:"relation";s:13:"Buyer of band";}}i:4;a:3:{s:2:"id";s:33:"apll-on-behalf-of-tongfang-global";s:4:"name";s:33:"APLL ON BEHALF OF TONGFANG GLOBAL";s:4:"data";a:2:{s:4:"band";s:13:"APL LOGISTICS";s:8:"relation";s:13:"Buyer of band";}}i:5;a:3:{s:2:"id";s:34:"apll-on-behalf-of-ningbo-xiangyuan";s:4:"name";s:34:"APLL ON BEHALF OF NINGBO XIANGYUAN";s:4:"data";a:2:{s:4:"band";s:13:"APL LOGISTICS";s:8:"relation";s:13:"Buyer of band";}}i:6;a:3:{s:2:"id";s:33:"apll-on-behalf-of-ningbo-homestar";s:4:"name";s:33:"APLL ON BEHALF OF NINGBO HOMESTAR";s:4:"data";a:2:{s:4:"band";s:13:"APL LOGISTICS";s:8:"relation";s:13:"Buyer of band";}}i:7;a:3:{s:2:"id";s:17:"apll-on-behalf-of";s:4:"name";s:17:"APLL ON BEHALF OF";s:4:"data";a:2:{s:4:"band";s:13:"APL LOGISTICS";s:8:"relation";s:13:"Buyer of band";}}i:8;a:3:{s:2:"id";s:21:"apl-logistics-sdn-bhd";s:4:"name";s:21:"APL LOGISTICS SDN BHD";s:4:"data";a:2:{s:4:"band";s:13:"APL LOGISTICS";s:8:"relation";s:13:"Buyer of band";}}i:9;a:4:{s:2:"id";s:21:"apl-logistics-limited";s:4:"name";s:21:"APL LOGISTICS LIMITED";s:4:"data";a:2:{s:4:"band";s:13:"APL LOGISTICS";s:8:"relation";s:13:"Buyer of band";}s:8:"children";a:27:{i:0;a:3:{s:2:"id";s:26:"tri-phil-international-inc";s:4:"name";s:27:"TRI-PHIL INTERNATIONAL INC.";s:4:"data";a:2:{s:4:"band";s:21:"APL LOGISTICS LIMITED";s:8:"relation";s:13:"Buyer of band";}}i:1;a:3:{s:2:"id";s:16:"pt-apl-logistics";s:4:"name";s:17:"PT. APL LOGISTICS";s:4:"data";a:2:{s:4:"band";s:21:"APL LOGISTICS LIMITED";s:8:"relation";s:13:"Buyer of band";}}i:2;a:3:{s:2:"id";s:25:"keygold-manufacturing-inc";s:4:"name";s:26:"KEYGOLD ... 

深度为$array肯定大于3。只需将深度设置为更大的数字即可。

附带说明,您还可以使用json_last_error https://secure.php.net/manual/en/function.json-last-error.php查看 json_encode 失败时的错误消息。

本文内容由网友自发贡献,版权归原作者所有,本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容,请联系:hwhale#tublm.com(使用前将#替换为@)

json_encode() 返回 false 的相关文章

随机推荐