i want to set my array key initial value to a certain number. here is what i have:
$tickets=array();
array_push($tickets,"10","20","TBD")
for($i=3; $i<20; $i++)
i want my array initial value to start at 3 not 0.
any ideas
Add a comment
|
4 Answers
Set your first value manually with $tickets[3]=$value and PHP will start putting $tickets[] at the next index (4, then 5, etc).
1 Comment
Felix Kling
As the documentation clearly says: Syntax
index => values, separated by commas, define index and values. index may be of type string or integer. (...) If index is an integer, next generated index will be the biggest integer index + 1. php.net/manual/en/function.array.phpIf you're initializing $tickets right there why not use an array literal?
$tickets=array(3=>10, 4=>20, 5=>'TBD');
print_r($tickets);
prints
Array
(
[3] => 10
[4] => 20
[5] => TBD
)
edit and btw: This also works with variables in both places, the key and the value. Therefore
$x = 5;
$y = 'TBD';
$tickets=array(3=>10, 4=>20, $x=>$y);
print_r($tickets);
has the same output as well as
$tickets=array( /* initial index here */ 3=>10, 20, 'TDB');
print_r($tickets);
Comments
Set $start_key to 3, and use range() to create the set of keys. Use array_combine() to combine into the array set up how you want:
$tickets = array();
array_push($tickets,"10","20","TBD");
print_r($tickets);
// This is the zero-indexed array that occurs by default:
// Array
// (
// [0] => 10
// [1] => 20
// [2] => TBD
// )
$start_key = 3;
$tickets = array_combine(range($start_key,count($tickets)+($start_key-1)), $tickets);
print_r($tickets);
// Now you have an array whose keys start at 3:
// Array
// (
// [3] => 10
// [4] => 20
// [5] => TBD
// )
Comments
Does this work?
$tickets = array();
for ($i=3; $i<20; $i++) {
$tickets[$i] = 'TBD';
}
1 Comment
NULL
yup but i want to access the whole aray from 10, etc. where the initial array[3] = 10, but i am not getting it. so array[5]=TBD