Help with multidimensional Arrays in PHP

Question

How can I get the key and the value ? I tried using key() but it didn't work:

$array_newbie = array();
$array_newbie['121412'] = "Hello";
$array_newbie['121212'] = "Noob";
$array_newbie['155161'] = "nabbaa";
foreach($array_newbie as $k)
{
echo key($array_newbie) . "\n";
}

this outputs:

121212
121212
121212

how can I get the key value ? I want it to output

121412
121212
155161

i'm new to php and having trouble with this multi dimensional arrays, thanks

alex · Accepted Answer · 2011-07-13 04:25:30Z

1

key() is getting the key of the current array pointer. In your case, it is always 0.

You can get it via the foreach.

foreach($array_newbie as $key => $k) {
    echo $key . "\n";
}

Also, that array is an associative array, not a multi-dimensional array.

The latter is an array of whom their members are also arrays...

$arr = array(
   array(
      'a', 'b', 'c'
   ),
   array(
      'd', 'e', 'f'
   )
);

answered Jul 13, 2011 at 4:25

alex

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3 Comments

André Cardoso Over a year ago

got it, thank you very much, another quick question: How can I remove everything before a word in a string ? example: I have this: colegas-que-manjam-de-harry-potter_t_1578519 and I want this: 1578519, removing everything before t and t

alex Over a year ago

@AndréCardoso: That is really a new question in itself. Ask it and link me :)

André Cardoso Over a year ago

Heh, thank you very much, I will link you in 13 minutes ( time till I can post another question, lol )

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