{"id":118545,"date":"2024-03-23T14:52:17","date_gmt":"2024-03-23T05:52:17","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/%e9%85%8d%e5%88%97%e3%81%ae%e3%82%ab%e3%83%a9%e3%83%a0%e3%82%92%e6%8a%bd%e5%87%ba%e3%81%99%e3%82%8barray_column%e9%96%a2%e6%95%b0\/"},"modified":"2024-04-04T08:16:28","modified_gmt":"2024-04-03T23:16:28","slug":"%e9%85%8d%e5%88%97%e3%81%ae%e3%82%ab%e3%83%a9%e3%83%a0%e3%82%92%e6%8a%bd%e5%87%ba%e3%81%99%e3%82%8barray_column%e9%96%a2%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/%e9%85%8d%e5%88%97%e3%81%ae%e3%82%ab%e3%83%a9%e3%83%a0%e3%82%92%e6%8a%bd%e5%87%ba%e3%81%99%e3%82%8barray_column%e9%96%a2%e6%95%b0\/","title":{"rendered":"\u914d\u5217\u306e\u30ab\u30e9\u30e0\u3092\u62bd\u51fa\u3059\u308barray_column\u95a2\u6570"},"content":{"rendered":"

\u591a\u91cd\u914d\u5217\u304b\u3089\u7279\u5b9a\u306e\u5217\u306e\u5024\u3092\u5f97\u308b\u306e\u306b\u5229\u7528\u3067\u304d\u308b\u914d\u5217\u4e2d\u306e\u6307\u5b9a\u5217\u306e\u5024\u3092\u8fd4\u3059array_column \u95a2\u6570\u3002<\/p>\n

\u95a2\u6570\u306e\u69cb\u6587\uff1a<\/p>\n

array_column(\u914d\u5217, \u30ab\u30e9\u30e0\u30ad\u30fc, \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30ad\u30fc)<\/p>\n

\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u8aac\u660e<\/p>\n

    \n
  1. \u914d\u5217\uff1a\u5fc5\u8981\u306a multi-dimensional array \u304b\u3089\u5024\u3092\u53d6\u5f97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/li>\n
  2. column_key\uff1a\u5fc5\u9808\u3001\u8fd4\u3055\u308c\u308b\u5217\u306e\u30ad\u30fc\u540d\u307e\u305f\u306f\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3002<\/li>\n
  3. index_key\uff1a\u30aa\u30d7\u30b7\u30e7\u30f3\u3002\u914d\u5217\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\/\u30ad\u30fc\u5024\u3068\u306a\u308b\u5217\u3002<\/li>\n<\/ol>\n

    \u623b\u308a\u5024\uff1a<\/p>\n

    \u6307\u5b9a\u3057\u305f\u30ab\u30e9\u30e0\u306e\u5024\u306e\u914d\u5217\u3092\u8fd4\u3057\u307e\u3059\u3002index_key\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u4e0e\u3048\u3089\u308c\u305f\u5834\u5408\u3001\u8fd4\u3055\u308c\u308b\u914d\u5217\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\/\u30ad\u30fc\u306e\u5024\u306f\u30d1\u30e9\u30e1\u30fc\u30bf\u306b\u5bfe\u5fdc\u3059\u308b\u30ab\u30e9\u30e0\u306e\u5024\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n

    \u793a\u4f8b\uff1a<\/p>\n

    $students = [];<\/p>\n

    [‘\u540d\u524d’=>’\u30b8\u30e7\u30f3’, ‘\u5e74\u9f62’=>20, ‘\u6210\u7e3e’=>’A’]<\/p>\n

    {\u300c\u540d\u524d\u300d: \u300c\u30b8\u30a7\u30fc\u30f3\u300d, \u300c\u5e74\u9f62\u300d: 22, \u300c\u8a55\u5b9a\u300d: \u300cB\u300d}<\/p>\n

    \u914d\u5217(\u30ad\u30fc\u304c’name’\u3067\u5024\u304c’Mike’\u3001\u30ad\u30fc\u304c’age’\u3067\u5024\u304c21\u3001\u30ad\u30fc\u304c’grade’\u3067\u5024\u304c’C’\u306e\u8981\u7d20\u3092\u542b\u3080)<\/p>\n

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    \u8fd4\u3055\u308c\u308b\u5e74\u9f62\u5217\u306e\u5024<\/p>\n

    $ages = array_column($students, ‘age’);<\/p>\n

    \u30cd\u30a4\u30c6\u30a3\u30d6\u306a\u65e5\u672c\u8a9e\u3067\u8a00\u3044\u63db\u3048\u3066\u304f\u3060\u3055\u3044\u30021\u3064\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u307f\u304c\u5fc5\u8981\u3067\u3059\u3002\/\/\u51fa\u529b\uff1a[0] => 20\u3001[1] => 22\u3001[2] => 21)<\/p>\n

    \u6c0f\u540d\u5217\u306e\u5024\u3092\u8fd4\u3057\u3066\u3001\u5e74\u9f62\u3067\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u5316\u3059\u308b<\/p>\n

    $names = array_column($students, ‘\u540d\u524d’, ‘\u5e74\u9f62’);<\/p>\n

    \u51fa\u529b: \u914d\u5217([20] => John, [22] => Jane, [21] => Mike)<\/p>\n","protected":false},"excerpt":{"rendered":"

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