I know I'm probably missing something easy, but I have a foreach loop and I'm trying to modify the values of the first array, and output a new array with the modifications as the new values.
Basically I'm starting with an array: 0 => A:B 1 => B:C 2 => C:D
And I'm using explode() to strip out the :'s and second letters, so I want to be left with an array: 0 => A 1 => B 2 => C
The explode() part of my function works fine, but I only seem to get single string outputs. A, B, and C.
Sounds like you want something like this?
$initial = array('A:B', 'B:C', 'C:D');
$cleaned = array();
foreach( $initial as $data ) {
$elements = explode(':', $data);
$cleaned[] = $elements[0];
}
Unless the array is referenced, foreach operates on a copy of the specified array and not the array itself
$arr = array( 0 => 'A:B', 1 => 'B:C', 2 => 'C:D');
// foreach($arr as $val) will not work.
foreach($arr as &$val) { // prefix $val with & to make it a reference to actual array values and not just copy a copy.
$temp = explode(':',$val);
$val = $temp[0];
}
var_dump($arr);
Output:
array(3) {
[0]=>
string(1) "A"
[1]=>
string(1) "B"
[2]=>
&string(1) "C"
}
