Question

我有以下数组

Array
(
   ['colour'] => Array
       (
             [0] => 1130
             [1] => 1131
             [2] => 1132
             [3] => 1133
       )

   ['size'] => Array
       (
             [0] => 1069
             [1] => 1070
       )
   //there could also be further arrays here such as weight etc

）

我想获得所有可能的排列 - 例如

 Colour 1130 - Size 1069
 Colour 1130 - Size 1070
 Colour 1131 - Size 1069
 Colour 1131 - Size 1070
 Colour 1132 - Size 1069
 etc

但显然不希望每种类型中包含1种以上的排列（一种物品不能同时为蓝色和红色，也不能同时为大中型）

请注意，这些键都是数字键，我在这里将它们更改为颜色，大小以使其更清晰（希望！）

Answer 1

我从this answer获取了笛卡尔函数，并给出了你想要的输出。

（感谢sergiy创建函数）

<强> https://eval.in/199787

<?php

$array = Array
    (
    'colour' => Array
        (
        1130,
        1131,
        1132,
        1133
    ),
    'size' => Array
        (
        1069,
        1070
    )
);

echo "<pre>";
$arrFinalArray = cartesian($array);
foreach( $arrFinalArray as $arrIndie) {
    //We know each as 2 keys
    $arrKeys = array_keys($arrIndie);
    $arrValues = array_values($arrIndie);

    echo $arrKeys[0] ."  ". $arrValues[0] ." - ". $arrKeys[1] ." ". $arrValues[1] ."<br />";
}
echo "</pre>";


function cartesian($input) {
    // filter out empty values
    $input = array_filter($input);

    $result = array(array());

    foreach ($input as $key => $values) {
        $append = array();

        foreach($result as $product) {
            foreach($values as $item) {
                $product[$key] = $item;
                $append[] = $product;
            }
        }

        $result = $append;
    }

    return $result;
}

Answer 2

$col = array('color'=>array(1130,1131,1132,1133));
$size = array('size'=>array(1069,1070));
$new_col = array();
foreach($col['color'] as $i=>$c){
    $new_col[]= "Color ". $c;
}

$new_size = array();
foreach($size['size'] as $i=>$s){
    $new_size[]= "Size ". $s;
}

$new_array = array();

foreach($new_col as $nc){

    foreach($new_size as $ns){
        $new_array[] = $nc. " ".$ns;
    }
}
print_r($new_array);

从多个数组PHP中获取所有排列

2 个答案: