Array_filter() with pregmtach

[K. Wolfe]

End of the day and I'm struggling:

<?php
$arr1 = array(
        "6263888445",
        "3134003757",
        "985415628" // should be moved to another array
);
 
$arr2 = array();
 
//preg_match('/^[0-9]{10}$/'), $var);

I want to use that reg ex to move anything that fails to $arr2

[K. Wolfe]

Yeah, so the title says where I was going wrong. I'll just run a foreach and do the check, unless of course someone can think of something cooler?

[Cups]

How about you sort the array, and anything less than 1000000000 or strlen === 10 you move to the other array?

$arr1 = array(

        "6263888445",
        "3134003757",
        "100",
        "985415628", "1",
);

$arr2 = array();
sort($arr1);

foreach( $arr1 as $k => $a){
if ( strlen($a) < 10  ){
$arr2[] = $a ;
unset($arr1[$k]);
}
if(strlen($a) === 10) continue ;  // drop out of the loop as soon as a 10 figure amt is found
}

var_dump($arr1);
var_dump($arr2); 

array
3 => string '3134003757' (length=10)
4 => string '6263888445' (length=10)
array
0 => string '1' (length=1)
1 => string '100' (length=3)
2 => string '985415628' (length=9)

EDIT
This way you avoid having to run a regex in a loop, and you only perform the check on the top part of the sorted array, when it discovers a 10 char figure it quits.