php multidimensional array sort - php

Question

I have this multidimensional array
I am wondered how can i sort this array again so i can use it in for loop.
array (size=3)
0 =>
array (size=1)
0 =>
array (size=7)
'username' => string 'wajdi' (length=5)
'userimage' => string 'file_3898.jpg' (length=13)
'date' => int 1373721708
'postid' => string '118' (length=3)
'type' => string 'comment' (length=7)
'comment' => string 'a' (length=1)
'notify' => string '0' (length=1)
2 =>
array (size=1)
2 =>
array (size=7)
'username' => string 'wajdi' (length=5)
'userimage' => string 'file_3898.jpg' (length=13)
'date' => int 1373721711
'postid' => string '118' (length=3)
'type' => string 'comment' (length=7)
'comment' => string 'c' (length=1)
'notify' => string '0' (length=1)
3 =>
array (size=1)
3 =>
array (size=7)
'username' => string 'wajdi' (length=5)
'userimage' => string 'file_3898.jpg' (length=13)
'date' => int 1373721712
'postid' => string '118' (length=3)
'type' => string 'comment' (length=7)
'comment' => string 'd' (length=1)
'notify' => string '0' (length=1)
How can I reindex this array to become
array (size=3)
0 =>
array (size=1)
0 =>
array (size=7)
'username' => string 'wajdi' (length=5)
'userimage' => string 'file_3898.jpg' (length=13)
'date' => int 1373721708
'postid' => string '118' (length=3)
'type' => string 'comment' (length=7)
'comment' => string 'a' (length=1)
'notify' => string '0' (length=1)
1 =>
array (size=1)
1 =>
array (size=7)
'username' => string 'wajdi' (length=5)
'userimage' => string 'file_3898.jpg' (length=13)
'date' => int 1373721711
'postid' => string '118' (length=3)
'type' => string 'comment' (length=7)
'comment' => string 'c' (length=1)
'notify' => string '0' (length=1)
2 =>
array (size=1)
2 =>
array (size=7)
'username' => string 'wajdi' (length=5)
'userimage' => string 'file_3898.jpg' (length=13)
'date' => int 1373721712
'postid' => string '118' (length=3)
'type' => string 'comment' (length=7)
'comment' => string 'd' (length=1)
'notify' => string '0' (length=1)
I tried array_shift and array_chunk but nothing works !!!
Please help, thank you all :)

Answer 1

Use array_multisort to sort multi-dimensional arrays or to sort an array using multiple keys.

Answer 2

I think this should do it but it's be a lot cleaner if you didn't have the extra level off the array.
$new_array = array();
$index = 0;
foreach($array as $i1 => $a1){
foreach($a1 as $i2 => $a2){
$new_array[$index][$index] = $a2;
}
$index++;
}

Answer 3

You can use 'array_values' for re-indexing which start index from 0. As per your requirement inner array are not starting from 0 but are same as parent array index. You have to use foreach for that. To index the way you want can be done like this:
$info = array(
0 => array (
0 => array (
'username' => 'wajdi',
'userimage' => 'file_3898.jpg',
'date' => 1373721708,
'postid' => '118',
'type' => 'comment',
'comment' => 'a',
'notify' => '0'
)
),
2 => array (
2 => array (
'username' => 'wajdi',
'userimage' => 'file_3898.jpg',
'date' => 1373721708,
'postid' => '118',
'type' => 'comment',
'comment' => 'a',
'notify' => '0'
)
),
3 => array (
3 => array (
'username' => 'wajdi',
'userimage' => 'file_3898.jpg',
'date' => 1373721708,
'postid' => '118',
'type' => 'comment',
'comment' => 'a',
'notify' => '0'
)
)
);
var_dump($info); // original index
$info = array_values($info);
foreach ($info as $key => $value) {
$temp = array();
foreach($value as $k => $v) {
$temp[$key] = $v;
}
$info[$key] = $temp;
}
var_dump($info); // re-index