How to add a comma after every existing outputs in php

Question

I'm trying to add a comma between outputs if they exist. If I use implode, comme is display though output string is empty.

$data1 = $_GET['data1']; // red
$data2 = $_GET['data2']; //
$data3 = $_GET['data3']; //
$data4 = $_GET['data4']; // green

$result = implode(', ', array($data1, $data2, $data3, $data4));
echo $result; 
// red, , , green :(
// red, green :)

UPDATE I have multiple keys, which is not the same as the duplicate

www.mysite.com/shoes?size=43 > size is 43
www.mysite.com/shoes?material=leather > material is leather
www.mysite.com/shoes?size=44&color=green > size is 44, color is green

How is that different than the duplicate since you pass all the values into an array. You can still filter the empty elements out of your array. — dirkgroten, Oct 03 '19 at 17:24

score 0 · Answer 1 · answered Sep 30 '19 at 14:12

0

You might want to send colors as an array:

http://my-site.com/?colors[]=red&colors[]=green&colors[]=

Then you can simply do:

$result = implode(', ', array_filter($_GET['colors']));

answered Sep 30 '19 at 14:12

ka_lin

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Values result to different keys – Sep 30 '19 at 14:19

How to add a comma after every existing outputs in php

1 Answers1