Question

I want to change the value of an array without loop-

Example code:

<?php
    //current array
    $ids = array('1113_1', '1156_6', '1342_16', '1132_3', '1165_2');

    //result should be looks like this
    $ids = array('1113', '1156', '1342', '1132', '1165');
?>

is it possible to do it without any loop?

Answer 1

Try this using array_map():

<?php
function remove_end($n)
{
    list($front) = explode("_", $n);
    return $front;
}

$a = array('1113_1', '1156_6', '1342_16', '1132_3', '1165_2');
$a = array_map("remove_end", $a);
print_r($a);
?>

Demo: http://codepad.org/iGJ3cJW2