PHP数组联合（线性产品）

PHP array union (linear product)

有没有任何方法可以得到两个或多个数组的并集？

例子：

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$array1 = [x1, x2, x3];

$array2 = [y1, y2, y3];

// and the result will be

$array2 = [x1 y1, x1 y2, x1 y3, x2 y1, x2 y2 ,.....];

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这应该对你有用：

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<?php

$array1 = array("x1","x2","x3"
$array2 = array("y1","y2","y3");

$array3 = array();

// and the result will be
//$array3 = [x1 y1, x1 y2, x1 y3, x2 y1, x2 y2 ,.....];

for($count = 0; $count < count($array1); $count++) {

for($countArrayTwo = 0; $countArrayTwo < count($array2); $countArrayTwo++)
$array3[] = $array1[$count] ."" . $array2[$countArrayTwo];

}

print_r($array3);

?>