[英]Loop through key value duplicates in sub array
我试图遍历一个简单的数组数组,然后如果我在子数组中找到重复的'id'
值,将它们分组并遍历它们。
这对你来说很明显,但我找不到一种简单的方法来做到这一点。
例子:
$records = array(
array(
'id' => 2135,
'start' => 'january',
'end' => 'march',
'color' => 'blue'
),
array(
'id' => 2135,
'start' => 'march',
'end' => 'april',
'color' => 'red'
),
array(
'id' => 5342,
'start' => 'january',
'end' => 'july',
'color' => 'black'
),
array(
'id' => 5623,
'start' => 'march',
'key' => 'august',
'color' => 'green'
),
array(
'id' => 5342,
'start' => 'april',
'end' => 'june',
'color' => 'purple'
)
);
需要的结果:
id 2135 的所有条目必须设置为蓝色。
id 5342 的所有条目必须设置为黑色。
试试这个解决方案
$records = array(
array(
'id' => 2135,
'start' => 'january',
'end' => 'march',
'color' => 'blue'
),
array(
'id' => 2135,
'start' => 'march',
'end' => 'april',
'color' => 'red'
),
array(
'id' => 5342,
'start' => 'january',
'end' => 'july',
'color' => 'black'
),
array(
'id' => 5623,
'start' => 'march',
'key' => 'august',
'color' => 'green'
),
array(
'id' => 5342,
'start' => 'april',
'end' => 'june',
'color' => 'purple'
)
);
$collection = collect($records);
$grouped = $collection->groupBy('id')->map(function($entries, $key){
$color = collect($entries)->first()['color'];
$e = $entries->toArray();
foreach ($e as $key => $value) {
$e[$key]['color'] = $color;
}
return $e;
})->values()->all();
dd($grouped);
输出
array:3 [▼
0 => array:2 [▼
0 => array:4 [▼
"id" => 2135
"start" => "january"
"end" => "march"
"color" => "blue"
]
1 => array:4 [▼
"id" => 2135
"start" => "march"
"end" => "april"
"color" => "blue"
]
]
1 => array:2 [▼
0 => array:4 [▼
"id" => 5342
"start" => "january"
"end" => "july"
"color" => "black"
]
1 => array:4 [▼
"id" => 5342
"start" => "april"
"end" => "june"
"color" => "black"
]
]
2 => array:1 [▼
0 => array:4 [▼
"id" => 5623
"start" => "march"
"key" => "august"
"color" => "green"
]
]
]
希望这有帮助
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