array_combine wont work with duplicate value

Question

I have two string :

$var1 = "1,2";
$var2 = "5,5";

I want output like: 5:1 5:2

I have tried explode() with array_combine() but it gives output like 5:2

My php code:

$res =  array_combine(explode(',', $var2), explode(',', $var1));

foreach($res as $key=>$val) {
 echo "$key:$val ";
}

You might want to get in the habit of accepting answers if they solve your issue: stackoverflow.com/help/someone-answers — AbraCadaver, May 02 '17 at 18:15

score 1 · Answer 1 · answered Apr 14 '17 at 19:55

1

Array keys must be unique and with your code you have two number 5, so you will get the second one. You could loop one array and access the other with the same key:

$array1 = explode(',', $var1);
$array2 = explode(',', $var2);

foreach($array2 as $key => $val) {
    echo "$val:{$array1[$key]} ";
}

answered Apr 14 '17 at 19:55

AbraCadaver

78,200
7
66
87

whats the purpose of {} inside echo – Omi Apr 14 '17 at 20:12
Would probably work without in this case: http://stackoverflow.com/questions/2596837/curly-braces-in-string-in-php – AbraCadaver Apr 14 '17 at 20:18

array_combine wont work with duplicate value

1 Answers1