PHP array_chunk-根据变量拆分

Question

是否可以基于数组中的值进行array_chunk ？

排列

Array (
[4f5hfgb] => Array (
[0] => ACME
[1] => 4f5hfgb
[2] => Aberdeen
)
[sdf4ws] => Array (
[0] => ACME
[1] => sdf4ws
[2] => Birmingham 
)
[dfgdfg54] => Array (
[0] => EDNON
[1] => dfgdfg54
[2] => Birmingham 
)
[345bfg] => Array (
[0] => EDNON
[1] => 345bfg
[2] => Birmingham 
)
[345fgfd] => Array (
[0] => VALVE
[1] => 345fgfd
[2] => Birmingham 
)
)

是否可以对[0]具有相同值的那些块进行分块？

所需的输出

Array (
    [4f5hfgb] => Array (
    [0] => ACME
    [1] => 4f5hfgb
    [2] => Aberdeen
    )
    [sdf4ws] => Array (
    [0] => ACME
    [1] => sdf4ws
    [2] => Birmingham 
    )
)

Array (
    [dfgdfg54] => Array (
    [0] => EDNON
    [1] => dfgdfg54
    [2] => Birmingham 
    )
    [345bfg] => Array (
    [0] => EDNON
    [1] => 345bfg
    [2] => Birmingham 
    )
)

Array (
    [345fgfd] => Array (
    [0] => VALVE
    [1] => 345fgfd
    [2] => Birmingham 
    )
)

Answer 1

如果我理解您的问题，您正在尝试将键0具有相同值的所有元素分组到同一数组中。 您无法使用array_chunk做到这一点，但是下面的循环会生成分组数组

$result = array();

foreach($arr as $k => $v) {
    $result[$v[0]][$k] = $v;
}

print_r($result);

Answer 2

尝试这个：

$values = array_unique(array_map(
    function ($v) { return $v[0]; },
    $array
));

$result = array();
foreach ($values as $val) {
    $result[] = array_filter($array, function ($v) use ($val) {
        return $v[0] == $val;
    });
}

Answer 3

不， array_chunk根据大小将数组拆分为多个块。 您可以考虑循环进入数组并将其分块为所需的结构。