数组根据下标进行归类

Posted 2021-06-01 车车大人

$a = [
    [\'id\'=>1,\'title\'=>\'星期二的早晨\',\'author\'=>\'张三\',\'date\'=>\'2021-6-1\'],
    [\'id\'=>2,\'title\'=>\'星期三的早晨\',\'author\'=>\'李四\',\'date\'=>\'2021-6-1\'],
    [\'id\'=>3,\'title\'=>\'星期四的早晨\',\'author\'=>\'王五\',\'date\'=>\'2021-6-2\']
];

$arr = [];
foreach ($a as $v){
    $arr[$v[\'date\']] = [
        \'date\'=>$v[\'date\'],
        \'articles\'=>[]
    ];
}

foreach ($a as $v){
    $arr[$v[\'date\']][\'articles\'][] = $v;
}

return json($arr);