To save on typing out the key name for every single array, I want to be able to build lists like..
$lists = array (
0 => array ('A', 'B', 'C', 'D', 'E');
1 => array ('A', 'B', 'C', 'D', 'E');
2 => array ('A', 'B', 'C', 'D', 'E');
)
.. and then assign the same key names to all them (either before or after)..
Key1, Key2, Key3, Key4, Key5
.. so when they're called, I can do something like..
foreach($lists as $list) {
showList($list);
}
.. and then within the showList() function, I can call the 5 keys by the key name.
The function I have set no problem, but it's assigning the key names that I'm not sure how to do. Sorry if my terminology isn't accurate, but hopefully I explained it well enough.
array_combine will make an associative array from an array of keys and an array of values.
$keys = array('Key1', 'Key2', 'Key3', 'Key4', 'Key5');
foreach ($lists as $list) {
showList(array_combine($keys, $list));
}
If you want to modify $lists permanently, you can do:
foreach ($lists as &$list) {
$list = array_combine($keys, $list);
}
The reference variable &$list makes this replace the elements in place.
Try this :
<?php
$keys = array('Key1', 'Key2', 'Key3', 'Key4', 'Key5');
$lists = array (
array ('A', 'B', 'C', 'D', 'E'),
array ('A', 'B', 'C', 'D', 'E'),
array ('A', 'B', 'C', 'D', 'E')
);
function showList($list){
global $keys;
return array_combine($keys, $list);
}
$output = array_map("showList", $lists);
echo "<pre>";
print_r($output);
?>
Result:
Array
(
[0] => Array
(
[Key1] => A
[Key2] => B
[Key3] => C
[Key4] => D
[Key5] => E
)
[1] => Array
(
[Key1] => A
[Key2] => B
[Key3] => C
[Key4] => D
[Key5] => E
)
[2] => Array
(
[Key1] => A
[Key2] => B
[Key3] => C
[Key4] => D
[Key5] => E
)
)