php多维混合数组转一维数组的函数

php多维混合数组转一维数组的函数

php语言本身没有将多维数组转为一维数组的函数,但是我们可以自己写一个php函数来实现将多维转一维的功能

CODE

public function main($multi)
{
    $multi = array(
        array(
            array('aaaa', 'bbbb'),
            'cccc',
        ),
        'dddd',
        array(
            array('eeee', 'ffff')
        ),
        '!!!!'
    );
    print_r($this->multiArrayToOne($multi))
} 
     
public function multiArrayToOne($multi)
{
    $arr = array();
    foreach ($multi as $key => $val) {
        if (is_array($val)) {
            $arr = array_merge($arr, $this->multiArrayToOne($val));
        } else {
            $arr[] = $val;
        }
    }

    return $arr;
}

RESULT

Array
(
    [0] => aaaa
    [1] => bbbb
    [2] => cccc
    [3] => dddd
    [4] => eeee
    [5] => ffff
    [6] => !!!!
)

$newArray = array_reduce($rulesData,function(&$newArray,$v){
$newArray[$v['index_item']] = $v;
return $newArray;
});