Reorganise array, move indexes to specific locations php - php

Question

I have an arbitrary number of arrays all containing the same format of data. There are 2 separate for loops looping through two separate SQL query results and adding them to 2 separate arrays.
Once I have all the information in both arrays, I am walking through them and joining them together to make a longer array.
However, as I am writing this array to a csv file, The information needs to be in order in the array so it writes it in order to the csv file. How can I do this?
Array 1
[1] => Array
(
[0] => 2017-07-21 00:00:00
[1] => Foo
[2] => Bar
[3] => 32.63
[4] => 18.36
[5] => 98.46
)
[2] => Array
(
[0] => 2017-07-21 00:00:00
[1] => Foo
[2] => Bar
[3] => 29.74
[4] => 148.68
[5] => 178.42
)
//etc
Array 2
[1] => Array
(
[0] => RTGH707321222
[1] => THIS
[2] => IS
[3] => TEXT
)
[2] => Array
(
[0] => RTGH707321220
[1] => SOME
[2] => WORDS
[3] => HERE
)
//etc
Joining the arrays together
array_walk($array2, function($values, $key) use (&$array1) {
$array1[$key] = array_merge($array1[$key], $values);
} );
After The array Merge - print_r($array1)
[1] => Array
(
[0] => 2017-07-21 00:00:00
[1] => Foo
[2] => Bar
[3] => 32.63
[4] => 18.36
[5] => 98.46
[6] => RTGH707321222
[7] => THIS
[8] => IS
[9] => TEXT
)
[2] => Array
(
[0] => 2017-07-21 00:00:00
[1] => Foo
[2] => Bar
[3] => 29.74
[4] => 148.68
[5] => 178.42
[6] => RTGH707321220
[7] => SOME
[8] => WORDS
[9] => HERE
)
//etc
So this is working fine. However, I would like to move some of these indexes around so that they are in a different order. I have looked into array_splice() but I am not sure if this is the correct method to use.
What I want it to look like
[1] => Array
(
[0] => 2017-07-21 00:00:00
[1] => RTGH707321222
[2] => TEXT
[3] => THIS
[4] => 18.36
[5] => 98.46
[6] => Foo
[7] => 32.63
[8] => IS
[9] => Bar
)
//etc
As you can see, all the information is still the same. The values have just been moved to different indexes. How can I sort the array so that it looks like the above. Can anyone point me in the right direction? Thanks.

Answer 1

This is a simpler method using array_replace() and an ordering array.
No extra loop, no temporary swapping variables.
Code: (Demo)
$array1=[
1=>['2017-07-21 00:00:00','Foo','Bar',32.63,18.36,98.46],
2=>['2017-07-21 00:00:00','Foo','Bar',29.74,148.68,178.42]
];
$array2=[
1=>['RTGH707321222','THIS','IS','TEXT'],
2=>['RTGH707321220','SOME','WORDS','HERE']
];
$order=[0=>'',6=>'',9=>'',7=>'',4=>'',5=>'',1=>'',3=>'',8=>'',2=>''];
array_walk($array2, function($values, $key) use (&$array1,$order) {
$array1[$key] = array_replace($order,array_merge($array1[$key], $values));
});
var_export($array1);

Answer 2

we can use swap technice here like,
<?php
foreach ($arr as $key => $value) {
$swap = $value[1];
$arr[$key][1] = $value[6];
$arr[$key][6] = $swap;
$swap = $value[9];
$arr[$key][9] = $value[2];
$arr[$key][2] = $swap;
$swap = $value[7];
$arr[$key][7] = $value[3];
$arr[$key][3] = $swap;
}
print_r($arr);
?>
$arr is your array.