Add values to an array while looping through

Asked Oct 29 '18 at 13:54

Active Apr 19 '19 at 13:00

Viewed 27 times

I am looking for a way to add values to an array while I am looping through. This might sound a bit confusing but the following example will show what I want to do.

// Create a test array
$rows = range('a', 'z');

// Loop through the test array
foreach ($rows as $key => $row) {
    print $key . ': '.$row."\n";
    if (false === strpos($key, 'added') && $row == 'd') {
        // Add value to test array
        $rows['added_'.$key] = $row;
    }
}

Output

0: a
1: b
2: c
3: d
4: e
5: f
6: g
7: h
8: i
9: j
10: k
11: l
12: m
13: n
14: o
15: p
16: q
17: r
18: s
19: t
20: u
21: v
22: w
23: x
24: y
25: z

However, the foreach loop will not output the added values.

edited Apr 19 '19 at 13:00

halfer

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asked Oct 29 '18 at 13:54

Peter

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Works totally fine for me... print_r($rows) displays the data array – clearshot66 Oct 29 '18 at 13:55
Are you expecting to see the output `$key : $row` where `$row` is the updated? – Harvey Fletcher Oct 29 '18 at 13:56
@HarveyFletcher Yes. I would like it to output `['added_'.$key]` as well. – Peter Oct 29 '18 at 13:57
Last element of $rows: `[added_3] => d )` – clearshot66 Oct 29 '18 at 13:57
Move your `print` statement to be after your `if(){}` statement – Harvey Fletcher Oct 29 '18 at 13:58
@clearshot66 You are right. The problem is that that value won't be looped. – Peter Oct 29 '18 at 14:05

Add values to an array while looping through

Output

0 Answers0