PHP: Create Array and fill/initialize it with Value

The function, you are searching for is called array_fill.

You can pass three parameters to array_fill:

1. Start-Index
2. Number of fields that should be written
3. Value that should be written to the fields

With calling

$arr = $array_fill(0, 10, 1);

you are doing exactly the same that you wanted to do in your example.

We are passing 0 as a start index (the first index in your array is 0), 10 as the number of fields (your array should have 10 fields) and 1 as the value. This value will be written in all 10 fields.

What is happening if we do not set the start index to 0?

$arr = $array_fill(2, 3, 4);

// $arr[2] = 4; $arr[3] = 4; $arr[4] = 4;

Here, we are beginning with index 2 and we are inserting the value 4 for 3 times. The result is the array below.

After all, PHP ist also providing a function to fill arrays with sequences of numbers or strings - if you do not want to have the same elements in your array.
2014-03-19 at 17:10