How to use keys and values in foreach using php?

Question

I am having the following friendDetails array output,

Array ( [0] => Array ( [id] => 1 [first_name] => Aruun [last_name] => Sukumar [photo] => jpg )

[1] => Array
    (
        [id] => 2
        [first_name] => senthilkumar
        [last_name] => Kumar
        [photo] => jpg
    )

) I use the following piece of code to to get final output

  foreach($friendDetails as $value){
       array_push($friendList, $value[id].".".$value[photo]."-".$value[first_name]." ".$value[last_name]);
  }

Final output will be,

Array
(
    [0] => 1.jpg-Aruun Sukumar
    [1] => 2.jpg-senthilkumar Kumar
    [2] => 18.jpg-senthilkumar sugumar
)

Here I am getting Notice Error with exact output. What i done wrong on the code? Is there any other way to get Final Output ?

konsolenfreddy · Accepted Answer · 2011-06-17 06:53:26Z

1

You get the notice error as you are not putting the keys of your array in quotes.

It should be:

foreach($friendDetails as $value){                       
    array_push($friendList, $value['id'].".".$value['photo']."-".$value['first_name']." ".$value['last_name']);                    
}

see http://php.net/manual/en/language.types.array.php

answered Jun 17, 2011 at 6:53

konsolenfreddy

9,7091 gold badge28 silver badges36 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Doug Owings · Accepted Answer · 2011-06-17 06:54:33Z

1

You need to put quotes around your key identifiers:

$value['id'] . "." . $value['photo']

etc. See "Why is $foo[bar] wrong?" at http://php.net/manual/en/language.types.array.php

answered Jun 17, 2011 at 6:54

Doug Owings

4,4481 gold badge23 silver badges21 bronze badges

Comments

deepi · Accepted Answer · 2011-06-17 06:56:28Z

1

Try this you will get both key and value:

  foreach ($friendDetails as $key_name => $key_value) {
   print "Key = " . $key_name . " Value = " . $key_value . "<BR>";
  }

answered Jun 17, 2011 at 6:56

deepi

1,08110 silver badges18 bronze badges

Comments

Francois Deschenes · Accepted Answer · 2011-06-17 06:58:20Z

1

Two things:

You need to put quotes (") around the array keys in the array_push (i.e. $value["id"])
Make sure that you define $friendList as an array before the foreach.

A working example:

<?php

$friendDetails = array(
  array(
    'id' => 1,
    'first_name' => 'Aruun',
    'last_name' => 'Sukumar',
    'photo' => 'jpg'
  ),
  array(
    'id' => 2,
    'first_name' => 'senthilkumar',
    'last_name' => 'Kumar',
    'photo' => 'jpg'
  )
);

$friendList = array();

foreach($friendDetails as $value){                       
 array_push($friendList, $value["id"].".".$value["photo"]."-".$value["first_name"]." ".$value["last_name"]);                    
}

print_r($friendList);

?>

answered Jun 17, 2011 at 6:58

Francois Deschenes

25.1k4 gold badges67 silver badges61 bronze badges

Comments

Niklas · Accepted Answer · 2011-06-17 06:54:33Z

0

Use quotations around your array values:

foreach($friendDetails as $value){                         
   array_push($friendList, $value['id'].".".$value['photo']."-".$value['first_name']." ".$value['last_name']);                     
}

answered Jun 17, 2011 at 6:54

Niklas

30k5 gold badges54 silver badges74 bronze badges

Comments

Oyeme · Accepted Answer · 2011-06-17 06:55:19Z

0

$friendList = array();    
foreach($friendDetails as $key=> $value){                       
        $friendList[] =  $value['id'].".".$value['photo']."-".$value['first_name']." ".$value['last_name']);                    
    }

answered Jun 17, 2011 at 6:55

Oyeme

11.3k4 gold badges46 silver badges66 bronze badges

Collectives™ on Stack Overflow

How to use keys and values in foreach using php?

6 Answers 6

Comments

Comments

Comments

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

6 Answers 6

Comments

Comments

Comments

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related