Trying To Get a Custom Array With Looping PHP - php

Question

Good day, i am trying to generate a csv with array below
array[0] => array(
["a"] => 1,
["b"] => 1,
["c"] => 1, --> the value is only 1 and 2
["d"] => user2,
),
array[1] => array(
["a"] => 1,
["b"] => 1,
["c"] => 2,
["d"] => user3,
),
array[2] => array(
["a"] => 2,
["b"] => 2,
["c"] => 1,
["d"] => user4,
),
array[3] => array(
["a"] => 2,
["b"] => 2,
["c"] => 2,
["d"] => user5,
)
edit: i want to get the 2 array with same number on "a" and "b" value, but different in "c" value
i tried my code below
$results = array();
for($i = 1 ; $i <= 10 ; $i++){
$j = $i+1;
$response = array(
array(
$i, $i, 1, "user".$i
),
array(
$i, $i, 2, "user".$j
)
);
array_push($results, $response);
}
but the array result is not as i wanted like above result. is there any solutions?, sorry for the confusion of this question, i am trying my best to ask. thank you for the help!.

Answer 1

1.You need to use % (modules operator) in your code to set 1 or 2 at third index of each of your child-array.
2.Don't create too many array/variables in your code.Do direct assignments
$results = array();
$j = 1;
for($i=1; $i<=10; $i++){
$j++;
$results[] = array($i, $i, 1, "user".$j);
$j++;
$results[] = array($i, $i, 2, "user".$j);
}
print_r($results);
Output: https://3v4l.org/GE7MD

Answer 2

I think you will have to work with a for loop and a manually increments value for your userx value like this.
$results = [];
$user = 1;
for($i = 1 ; $i <= 10 ; $i++){
$x = 1;
$user++;
$results[] = [$i, $i, $x, "user$user"];
$x = 2;
$user++;
$results[] = [$i, $i, $x, "user$user"];
}
print_r($results);
RESULT:
Array
(
[0] => Array
(
[0] => 1
[1] => 1
[2] => 1
[3] => user2
)
[1] => Array
(
[0] => 1
[1] => 1
[2] => 2
[3] => user3
)
[2] => Array
(
[0] => 2
[1] => 2
[2] => 1
[3] => user4
)
[3] => Array
(
[0] => 2
[1] => 2
[2] => 2
[3] => user5
)
[4] => Array
(
[0] => 3
[1] => 3
[2] => 1
[3] => user6
)
[5] => Array
(
[0] => 3
[1] => 3
[2] => 2
[3] => user7
)
[6] => Array
(
[0] => 4
[1] => 4
[2] => 1
[3] => user8
)
[7] => Array
(
[0] => 4
[1] => 4
[2] => 2
[3] => user9
)
[8] => Array
(
[0] => 5
[1] => 5
[2] => 1
[3] => user10
)
[9] => Array
(
[0] => 5
[1] => 5
[2] => 2
[3] => user11
)
[10] => Array
(
[0] => 6
[1] => 6
[2] => 1
[3] => user12
)
[11] => Array
(
[0] => 6
[1] => 6
[2] => 2
[3] => user13
)
[12] => Array
(
[0] => 7
[1] => 7
[2] => 1
[3] => user14
)
[13] => Array
(
[0] => 7
[1] => 7
[2] => 2
[3] => user15
)
[14] => Array
(
[0] => 8
[1] => 8
[2] => 1
[3] => user16
)
[15] => Array
(
[0] => 8
[1] => 8
[2] => 2
[3] => user17
)
[16] => Array
(
[0] => 9
[1] => 9
[2] => 1
[3] => user18
)
[17] => Array
(
[0] => 9
[1] => 9
[2] => 2
[3] => user19
)
[18] => Array
(
[0] => 10
[1] => 10
[2] => 1
[3] => user20
)
[19] => Array
(
[0] => 10
[1] => 10
[2] => 2
[3] => user21
)
)
I removed the array_push() as it is quicker (no function call) to do a simple $arr[] = $something;