php数组具有相同的键，在一个数组中合并和重新排列键

Question

I has array when i use var_dump function to print array show me the below result

var_dump($val);

the result is

array (size=1)
0 => string '6' (length=1)

array (size=1)
0 => string '6' (length=1)

array (size=1)
0 => string '4' (length=1)

as see the $val contains three different array that have the zero index key

how i can merge them in one array and change or rearrange the zero index to 0, 1 and 2

EDITED

for more information when i use print_r($val) the result as below

Array ( [0] => 6 ) Array ( [0] => 6 ) Array ( [0] => 4 )

but the number of array in $val various not every time ins three arrays would be 4 array or 5 array etc..

how i can merge all in one array and index of them?

Answer 1

I believe you have an array like this,

$val = array(
    0 => array("6"),
    1 => array("6"),
    2 => array("4")
);

So to merge the array elements and rearrange the indices, you can do something like this:

foreach($val as $key => $array){
    $val[$key] = $array[0];
}

var_dump($val);

Output:

array (size=3)
  0 => string '6' (length=1)
  1 => string '6' (length=1)
  2 => string '4' (length=1)