Build an array of static string values -- each with an incremented numeric suffix

Question

I am trying to shorten my coding and I am having a problem here.

I have this very long array list

array(
    stackoverflow1,
    stackoverflow2,
    stackoverflow3,
    stackoverflow4,
    stackoverflow5,
    stackoverflow6
    ...
    stackoverflow100
);

I tried to do something like this

array (
for ($i = 1; $i<100; $i++)
{"stackoverflow".$i,}
);

I tried many ways to clear the syntax error, it just does not work. Is there a way to create a loop within an array?

user229044 · Accepted Answer · 2012-10-24 03:19:13Z

2

No, you cannot do what you're trying to do. That is completely unsupported syntax. You cannot mix executable code with array declarations.

You can, however, declare an empty array, and append items to it:

$items = array();

for ($i = 1; $i <= 100; ++$i) {
  $item[] = "stackoverflow$i";
}

answered Oct 24, 2012 at 3:19

user229044♦

241k41 gold badges346 silver badges350 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Travis · Accepted Answer · 2012-10-24 03:19:53Z

1

<?php

    $arr = array();

    for($i=1; $i<100; $i++){
        $arr[] = "stackoverflow".$i;
    }

    var_dump($arr);

?>

answered Oct 24, 2012 at 3:19

Travis

5,0712 gold badges31 silver badges38 bronze badges

1 Comment

user229044 Over a year ago

Please don't dump code-only answers into the site. The code is far less important than the explanation that is supposed to go with it.

mickmackusa · Accepted Answer · 2024-09-09 04:39:07Z

You can prepend an array of ascending numbers without an explicit loop. Pass your range of integers to substr_replace() then nominate the string stackoverflow as the text to prepend to each value of the array. By using 0 as the 3rd and 4th parameters, you state that the string should be injected at the first offset/position of each value and that no characters should be consumed by that injection.

Code: (Demo)

var_export(
    substr_replace(range(1, 10), 'stackoverflow', 0, 0)
);

Output:

array (
  0 => 'stackoverflow1',
  1 => 'stackoverflow2',
  2 => 'stackoverflow3',
  3 => 'stackoverflow4',
  4 => 'stackoverflow5',
  5 => 'stackoverflow6',
  6 => 'stackoverflow7',
  7 => 'stackoverflow8',
  8 => 'stackoverflow9',
  9 => 'stackoverflow10',
)

Collectives™ on Stack Overflow

Build an array of static string values -- each with an incremented numeric suffix

3 Answers 3

Comments

1 Comment

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Related