I was wondering if its possible, to loop through an array but have each key as a variable?
My current code is below, with an example expected output:
<?php
$arr = array(array('id' => 24, 'name' => 'luigi'), array('id' => 12, 'name' => 'luiginsd'));
foreach ($arr as $value) {
echo $id . '<br />';
}
/*
which would output:
24<br />
12<br />
*/
?>
All help is appreciated.
Use extract:
foreach ($arr as $value) {
extract($value);
echo $id.'<br />';
}
extract will iterate through an associative array and initialize a variable (presumably using variable variables) of the same name as the key in the array in the current scope containing the associated value.
Just for fun, here's what I think extract does under the hood:
foreach($array as $key => $value) {
$$key = $value;
}
Note that extract does not necessarily import these variables into global scope, they are imported into the current symbol table.
I suggest you avoid extract(); it makes tracing the origin/heritage of a variable impossible (without either assumptions or code execution). A much cleaner way to do this is:
foreach ($arr as $value) {
echo $value['id'] . '<br />';
}
