php array adding key to array to make new array not getting

Question

I have arrays as follows:

$A = ["a","b","c"];
$B = ["1" , "2", "3"];

I am trying to create an array as follows:

Array(["test"] => "a"
      "val"=>1),
    (["test"] => "b"
      "val"=>2),
   (["test"] => "c"
      "val"=>3)

I did something like this:

$data =array();


for($i=0;$i<count($A);$i++){

$data["test"]  = $A[$i] ;
$data['val']  = $B[$i] ;

}

But I am getting only the last value in resultant array as:

Array(["test"] => "c"
          "val"=>3)

The first two elements missing. please help me.

Narendrasingh Sisodia · Accepted Answer · 2015-08-17 11:25:38Z

2

You can use array_map function as

$result = array_map(function($a,$b){return ['test' => $a,'val' => $b];},$A,$B);
print_r($result);

answered Aug 17, 2015 at 11:25

Narendrasingh Sisodia

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Comments

Qaisar Satti · Accepted Answer · 2015-08-17 12:06:40Z

2

you code is rewrite values of array every time loop execute.so you have to create multidimensional array.this will show you data as you want..

 $data =array();


    for($i=0;$i<count($A);$i++){

    $data[]  = array('test' =>$A[$i],'val'=>$B[$i]) ;


    }

edited Aug 17, 2015 at 12:06

answered Aug 17, 2015 at 11:18

Qaisar Satti

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1 Comment

Qaisar Satti Over a year ago

thanks @KevinBrown next time i will be careful with that

Hasan Tareque · Accepted Answer · 2015-08-17 12:15:32Z

1

You just overwriten the value of $data['test'] and $data['val']. It should be a 2 dimentional array and The following code should solve your issue mate..

$A = ["a", "b", "c"];
$B = ["1", "2", "3"];

$data = array();
for ($i = 0; $i < count($A); $i++) {

    $data[$i]['test'] = $A[$i];
    $data[$i]['val'] = $B[$i];
}

edited Aug 17, 2015 at 12:15

answered Aug 17, 2015 at 11:26

Hasan Tareque

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1 Comment

Hasan Tareque Over a year ago

I have explained the answer.

Hassaan · Accepted Answer · 2015-08-17 12:09:01Z

0

$data["test"] and $data["test"] are being overwritten. You need to make them array.

Try

$A = ["a","b","c"];
$B = ["1","2","3"];

for($i=0;$i<count($A);$i++)
{
    $data[$i]["test"] = $A[$i];
    $data[$i]['val'] = $B[$i];
}

print_r($data);

edited Aug 17, 2015 at 12:09

answered Aug 17, 2015 at 11:21

Hassaan

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1 Comment

Hasan Tareque Over a year ago

its just identical to mine !!

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