在 PHP 7.4 中报错：Illegal offset type in isset or empty

由 永夜 · 2022/08/12

1、在 PHP 7.4 中报错：Illegal offset type in isset or empty。如图1

图1

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{   "errors": [     {       "debugMessage": "Illegal offset type in isset or empty",       "message": "Internal server error",       "extensions": {         "category": "internal"       },       "locations": [         {           "line": 3,           "column": 5         }       ],       "path": [         "onlineStore",         "theme"       ],       "trace": []     }   ],   "data": {     "onlineStore": {       "theme": null,       "__typename": "OnlineStore"     },     "__typename": "Query"   } }

2、代码如下：

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if (isset($setting['settingId']) && isset($currentSettings[$setting['settingId']])) {     $setting = $setting + [             'value' => $currentSettings[$setting['settingId']],         ]; }

3、打印 $setting，其值为对象。如图2

图2

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Array (     [info] => 轮播图标题、模块标题、商品的标题等     [label] =>     [type] => HEADER     [default] =>     [content] => 标题     [id] => Modules\OnlineStoreThemeGraphQL\Resolver\Id Object         (             [prefixes:protected] => Array                 (                     [0] => 96b1c8b9-5b18-4760-9e26-50ab009ac011                     [1] => settings                     [2] => 0                 )           )       [__typename] => ThemeSettingHeader     [settingId] => Modules\OnlineStoreThemeGraphQL\Resolver\Id Object         (             [prefixes:protected] => Array                 (                     [0] => 96b1c8b9-5b18-4760-9e26-50ab009ac011                     [1] => settings                     [2] => 0                 )           )   )

4、将 $setting[‘settingId’] 转为 字符串。

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$settingId = isset($setting['settingId']) ? (string) $setting['settingId'] : null;   // 获取当前设置值 if (isset($settingId) && isset($currentSettings[$settingId])) {     $setting = $setting + [             'value' => $currentSettings[$setting['settingId']],         ]; }

5、打印转换后的字符串值如下

1	96b1c8b9-5b18-4760-9e26-50ab009ac011/settings/0

6、不再报错。

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标签： Illegal offset typein isset or emptyPHP 7.4String

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