在PHP中的foreach循环中存储数组数据

Question

I am wondering how can I store all values from a foreach loop, I know that I am re-initialising in the loop but I'm not sure how to store the data. Heres my basic loop:

$array = array("v1", "v2", "v3", "v4");
foreach($array as $row){
    $arr = array('val' => $row);
    echo $row;
}
print_r($arr);

So when I use the print_r($arr) the only thing outputted would be v4 and I know that the values are there because the echo $row; does return each output individually.

My question would be how can I store each instance of row in my array?

Answer 1

Create a new array, fill it:

$array = array("v1", "v2", "v3", "v4");

$newArray = array();

foreach($array as $row){
    // notice the brackets
    $newArray[] = array('val' => $row);

}

print_r($newArray);