how to combine PHP arrays from form entries

Question

I have a form that allows the user to select multiple "keys" and then dynamically add any amount of values after. I need to combine them tied to each "key" to insert as rows in CSV. example data from form submit:

$locations = array(loc1,loc2,loc3,loc4)
$input1 = array(A1,A2,A3,A4,A5)
$input2 = array(B1,B2,B3,B4,B5)
$input3 = array(C1,C2,C3,C4,C5)

Output as:

$OutToCVS = array(loc1,A1,A2,A3,A4,A5)
$OutToCVS = array(loc1,B1,B2,B3,B4,B5)
$OutToCVS = array(loc1,C1,C2,C3,C4,C5)
$OutToCVS = array(loc2,A1,A2,A3,A4,A5)
$OutToCVS = array(loc2,B1,B2,B3,B4,B5)
$OutToCVS = array(loc2,C1,C2,C3,C4,C5)
$OutToCVS = array(loc3,A1,A2,A3,A4,A5)
$OutToCVS = array(loc3,B1,B2,B3,B4,B5)
$OutToCVS = array(loc3,C1,C2,C3,C4,C5)
$OutToCVS = array(loc4,A1,A2,A3,A4,A5)
$OutToCVS = array(loc4,B1,B2,B3,B4,B5)
$OutToCVS = array(loc4,C1,C2,C3,C4,C5)

Any help would be appreciated.

Iterate over arrays and create result data.

u_mulder
– u_mulder

2020-10-13 20:22:19 +00:00
Commented Oct 13, 2020 at 20:22 — u_mulder
– u_mulder, Commented Oct 13, 2020 at 20:22

u_mulder · Accepted Answer · 2020-10-13 20:52:26Z

1

Example code to start with:

foreach ($locations as $loc) {
    $OutToCVS[] = array_merge([$loc], $input1);
    $OutToCVS[] = array_merge([$loc], $input2);
    $OutToCVS[] = array_merge([$loc], $input3);
}

Fiddle.

edited Oct 13, 2020 at 20:52

answered Oct 13, 2020 at 20:24

u_mulder

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3 Comments

kayakerpaul Over a year ago

Ok, this get me to where I can get an output like: Array ([0] => Array ( [0]=> loc1 [1] =>$input1 [2] =>input2) [1]=> loc2 [1] =>$input1 [2] =>input2)

kayakerpaul Over a year ago

I need it to give a round for each input with location repeated. Does this make sense?

kayakerpaul Over a year ago

Checking against it now. Just tried again, and not getting the correct results. I will update accordingly. Thank you.

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