update a given array with values from a set of objects php - php

Question

I am trying to set the values of an empty array with another array (based on rows returned from a database).
I have tried a few things like array_merge but I just end up adding to the first array.
Just curious if there is a way to do this or would I need to iterate thought each array and merge them?
The second array can have between 1 and 3 arrays in it, while the first (the "empty") array has 3 elements always.
Empty array
(
[0] => Array
(
[id] =>
[quote_id] =>
...
)
[1] => Array
(
[id] =>
[quote_id] =>
...
)
[2] => Array
(
[id] =>
[quote_id] =>
...
)
)
Array I want to copy data from
Array
(
[0] => Array
(
[id] => 1
[quote_id] => 1
...
)
[1] => Array
(
[id] => 2
[quote_id] => 1
...
)
)
What I want to achieve
Array
(
[0] => Array
(
[id] => 1
[quote_id] => 1
...
)
[1] => Array
(
[id] => 2
[quote_id] => 1
...
)
[2] => Array
(
[id] =>
[quote_id] =>
...
)
)

Answer 1

You can make use of the array union operatorDocs:
$combined = $rows + $empty;
The + operator returns the right-hand array appended to the left-hand array; for keys that exist in both arrays, the elements from the left-hand array will be used, and the matching elements from the right-hand array will be ignored.

Answer 2

You could use array_replace(), but you'll have to be very careful with the keys, see the example in the PHP manual.

Answer 3

You can try
$empty = array(
"0" => Array("id" => null,"quote_id" => null,"position" => null,"type" => null,"number" => null,"cost" => null,"total" => null),
"1" => Array("id" => null,"quote_id" => null,"position" => null,"type" => null,"number" => null,"cost" => null,"total" => null),
"2" => Array("id" => null,"quote_id" => null,"position" => null,"type" => null,"number" => null,"cost" => null,"total" => null))
;
$content = Array(
"0" => Array("id" => 1,"quote_id" => 1,"position" => 1,"type" => "dwdwdw","number" => 22,"cost" => 33.00,"total" => 726.00),
"1" => Array("id" => 2,"quote_id" => 1,"position" => 2,"type" => "dwdw","number" => 22,"cost" => 22.00,"total" => 484.00));
var_dump(array_merge($content,array_unique($empty)));
Output
array
0 =>
array
'id' => int 1
'quote_id' => int 1
'position' => int 1
'type' => string 'dwdwdw' (length=6)
'number' => int 22
'cost' => float 33
'total' => float 726
1 =>
array
'id' => int 2
'quote_id' => int 1
'position' => int 2
'type' => string 'dwdw' (length=4)
'number' => int 22
'cost' => float 22
'total' => float 484
2 =>
array
'id' => null
'quote_id' => null
'position' => null
'type' => null
'number' => null
'cost' => null
'total' => null

Answer 4

Try this,
<?php
$result=mysql_query($query);
$i=0;
while($row=mysql_fetch_assoc($result)){
$youArray[$i]['id']=$row['id'];
$youArray[$i]['quote_id']=$row['quote_id'];
//remaining values
$i++;
}
?>