php 2 dimensional array retrieve value?

Question

$useridtofind= 123;

$users=array();

while ($data = mysql_fetch_array ($result))
{

        $userid = $data['userid'];
    $age = $data['age'];
    $gender = $data['gender'];
    $dob = $data['dob'];

    $users[$userid] => array(
        'age'=> $age, 
        'gender'=> $gender, 
        'dob' => $dob
        )
}


$useridtofind=123;

for($v=0; $v< count($users); $v++)
{
    if($users[$v]== $useridtofind)
    {
        //how to go with grab value of age, gender, dob  here?      
    }
}

Jonathan Fingland · Accepted Answer · 2011-02-11 01:21:41Z

2

You already use the id to index the array.

Just use:

if (isset($users[$usertofind])) {
  $user = $users[$usertofind]; 
  echo $user['age'];
  echo $user['dob'];
  echo $user['gender'];
}

EDIT: Added isset check and reduced the number of times referencing the same array element

answered Feb 11, 2011 at 1:21

Jonathan Fingland

57.3k11 gold badges89 silver badges79 bronze badges

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

Comments

user229044 · Accepted Answer · 2011-02-11 01:21:31Z

0

You seem to be using the user id as the index of the user in the array. If this is the case, you shouldn't be using a for loop, you should just check if the key exists within the array:

$useridtofind = 123;

if (array_key_exists($useridtofind, $users)) {
  $user = $users[$useridtofind];

  echo "User exists: ", $user['age'], '/', $user['gender'], '/', $user['dob'];
} else {
  echo "User doesn't exist";
}

answered Feb 11, 2011 at 1:21

user229044♦

241k41 gold badges348 silver badges350 bronze badges

Collectives™ on Stack Overflow

php 2 dimensional array retrieve value?

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related