代码之家 › 专栏 › 技术社区 › Gufran Hasan

如何从两个数组创建关联数组?

arrays php

Gufran Hasan · 技术社区 · 5 年前

我有两个数组,一个用于键,另一个用于值。值数组是数组的数组。

$keyArray = array("clientId","clientName","clientAdsress","clientPhone");

值数组:

$valuesArray = array(
                "0"=>array("1001","aaaaa","ddddddd","22222222"),
                "1"=>array("1002","bbbbbb","ddddddd","11111111"),
                "2"=>array("1003","ccccc","ddddddd","33333333")
              );

预期产量:

$finalData = array(
                    "clientId"=>array("1001","1002","1003"),
                    "clientName"=>array("aaaaa","bbbbbb","ccccc"),
                    "clientAdsress"=>array("ddddddd","ddddddd","ddddddd"),
                    "clientPhone"=>array("22222222","11111111","33333333")
                  );

$finalData = array();
for($i=0;$i<count($keyArray);$i++){

    for($j=0;$j<count($valuesArray);$j++){
        $rowArray = $valuesArray[$j];
       $finalData[$keyArray[$i]] = array($rowArray[$i]);
    }
}

echo '<pre>';print_r($finalData);echo '</pre>';

输出:

Array
(
    [clientId] => Array
        (
            [0] => 1003
        )

    [clientName] => Array
        (
            [0] => ccccc
        )

    [clientAdsress] => Array
        (
            [0] => ddddddd
        )

    [clientPhone] => Array
        (
            [0] => 33333333
        )

)

我正在获取数组的最后一个值。如何获得预期的输出?

2 回复 | 直到 5 年前

Nick SamSmith1986 5 年前

一种方法是使用 array_combine array_column

$finalData = array_combine($keyArray, array(array_column($valuesArray, 0),
                                            array_column($valuesArray, 1),
                                            array_column($valuesArray, 2),
                                            array_column($valuesArray, 3)));
print_r($finalData);

输出:

Array ( 
    [clientId] => Array ( [0] => 1001 [1] => 1002 [2] => 1003 )
    [clientName] => Array ( [0] => aaaaa [1] => bbbbbb [2] => ccccc )
    [clientAdsress] => Array ( [0] => ddddddd [1] => ddddddd [2] => ddddddd )
    [clientPhone] => Array ( [0] => 22222222 [1] => 11111111 [2] => 33333333 ) 
)

Demo on 3v4l.org

Xatenev 5 年前

一个简单的 foreach

https://3v4l.org/gbBad

<?php

$keyArray = array("clientId", "clientName", "clientAdsress", "clientPhone");
$valuesArray = array(
    "0" => array("1001", "aaaaa", "ddddddd", "22222222"),
    "1" => array("1002", "bbbbbb", "ddddddd", "11111111"),
    "2" => array("1003", "ccccc", "ddddddd", "33333333")
);
$expected = array(
    "clientId" => array("1001", "1002", "1003"),
    "clientName" => array("aaaaa", "bbbbbb", "ccccc"),
    "clientAdsress" => array("ddddddd", "ddddddd", "ddddddd"),
    "clientPhone" => array("22222222", "11111111", "33333333")
);

$result = [];
foreach ($keyArray as $key => $keyName) {
    foreach ($valuesArray as $value) {
        $result[$keyName][] = $value[$key];
    }
}

var_dump($result === $expected);

Ilmari Karonen hansTheFranz 5 年前

建立在 Nick's answer ,一个不需要硬编码键数的简单解决方案是:

$finalData = array_combine($keyArray, array_map(null, ...$valuesArray));

( Demo on 3v4l.org )

$valuesArray 使用 array_map 如前所述 in this answer $keyArray 使用 array_combine 就像尼克的回答一样。

Progrock 5 年前

<?php
$keyArray = array(
    "clientId","clientName","clientAdsress","clientPhone"
);

$valuesArray = array(
    "0"=>array("1001","aaaaa","ddddddd","22222222"),
    "1"=>array("1002","bbbbbb","ddddddd","11111111"),
    "2"=>array("1003","ccccc","ddddddd","33333333")
);
foreach($keyArray as $keyIndex => $keyName)
    $finalData[$keyName] = array_column($valuesArray, $keyIndex);

print_r($finalData);

Array
(
    [clientId] => Array
        (
            [0] => 1001
            [1] => 1002
            [2] => 1003
        )

    [clientName] => Array
        (
            [0] => aaaaa
            [1] => bbbbbb
            [2] => ccccc
        )

    [clientAdsress] => Array
        (
            [0] => ddddddd
            [1] => ddddddd
            [2] => ddddddd
        )

    [clientPhone] => Array
        (
            [0] => 22222222
            [1] => 11111111
            [2] => 33333333
        )

)