laravel：JSON 字段与数组的比较

Question

laravel-5.7/mysql\n

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在我的数据库中，我有一个如下所示的 json 格式字段：

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字段名称：特征：

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[\n    {"id": 1, "url": null, "name": "A"}, \n    {"id": 2, "url": null, "name": "B"}\n]\n

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同样在它的模型中，我写了这个

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  protected $casts = [\n    \'features\' => \'array\'\n  ];\n

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现在我创建一个数组：

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$features = array();\n\ntemp = array();\ntemp[\'id\'] = 1;\ntemp[\'url\'] = null;\ntemp[\'name\'] = A;\n$features[] = temp;\n\ntemp = array();\ntemp[\'id\'] = 2;\ntemp[\'url\'] = null;\ntemp[\'name\'] = B;\n$features[] = temp;\n

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如何$features array 与features field 数据库中的进行比较？

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\xd9\x91我检查了这些：

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$fff = \\App\\Cart::whereFeatures($features)->get()->first();\n

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或者

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$fff = \\App\\Cart::whereFeatures(json_encode($features))->get()->first();\n

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或者

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$fff = \\App\\Cart::whereFeatures(json_encode($features,JSON_UNESCAPED_UNICODE))->get()->first();\n

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Answer 1

使用原始表达式来转换比较值：

$fff = \App\Cart::whereRaw('features = cast(? as json)', json_encode($features))->get();