PHP using explode - php

Question

I'm trying to explode and separate the results in 2 different arrays
One One_x
Two Two_xx
Three Three_xxx
Four Four_xxxx
I first want to explode the break line ( \n )..
then explode the space to come up with all One, Two, Three, Four in an array
AND One_x, Two_xx, Three_xxx, Four_xxxx in a different array
i tried to explode the break line
$ex = explode("\n", $numbers);
then
foreach($ex as $number){
$ex = explode(" ", $number);
}
but it seems a bit confusing to me,
How to solve this ?

Answer 1

$array1 = array();
$array2 = array();
foreach($ex as $number){
$tmp = explode(" ", $number);
$array1[] = $tmp[0];
$array2[] = $tmp[1];
}
Simplest way I think
EDIT: care you set $ex in loop ... Not a good idea. Use another var

Answer 2

Instead of runnig explode once or twice, a regex can split up the input at once, and assert the structure at it:
preg_match_all('/
^ # line start
(\w+) # One, Two, ...
\s+ # spaces
(\w+) # Four_xxxxx
$ # line end
/smix',
$input,
$array
);
print_r($array);
Will give you:
[0] => Array
(
[0] => One One_x
[1] => Two Two_xx
[2] => Three Three_xxx
[3] => Four Four_xxxx
)
[1] => Array
(
[0] => One
[1] => Two
[2] => Three
[3] => Four
)
[2] => Array
(
[0] => One_x
[1] => Two_xx
[2] => Three_xxx
[3] => Four_xxxx
)
One could also use PREG_SET_ORDER or even extract the trailing _xxxx (?)numbers.