PHP Array manipulation need tips - php

Question

I have arrays in one submission, please see below details:
array(5) {
["ambition_id"]=>
array(2) {
[55]=> string(2) "55"
[60]=> string(2) "60"
}
["target"]=>
array(1) {
[0]=> string(8) "target 1"
[1]=> string(8) "target 2"
}
["strides"]=>
array(1) {
[0]=> string(1) "1"
[1]=> string(1) "1"
}
["date"]=>
array(1) {
[0]=> string(10) "2017-02-08"
[1]=> string(10) "2017-03-08"
}
["frequency"]=>
array(1) {
[0]=> string(1) "1"
[1]=> string(1) "2"
}
}
Actually, I have two tables in mysql, 'ambition' and 'target'. Ambition is a group of targets ('ambition_id' is foreign key in 'target' table). That array will be stored in 'target' table. That's why there is an 'ambition_id'
I've tried many times but failed (using foreach), now I need someone who can give me a help.
By brute force, It's easy! I solved it already but I need "more advanced" array manipulation.
How can I come up into this?
array(2) {
[0] => array('ambition_id' => 55,
'target' => 'target 1',
'strides' => 1,
'date' => '2017-02-08',
'frequency' => 1
),
[1] => array('ambition_id' => 60,
'target' => 'target 2',
'strides' => 2,
'date' => '2017-03-08',
'frequency' => 2)
}
Please do help, many thanks!

Answer 1

You have to pivot your data:
$data = array (
"ambition_id" =>
array (
55 => "55",
60 => "60"
),
"target" =>
array (
0 => "target 1",
1 => "target 2"
),
"strides" =>
array (
0 => "1",
1 => "1"
),
"date" =>
array (
0 => "2017-02-08",
1 => "2017-03-08"
),
"frequency" =>
array (
0 => "1",
1 => "2"
)
);
// pivot data
$pivot = array();
foreach ($data as $datum => $values) {
$value_index = 0;
foreach ($values as $value) {
$pivot[$value_index][$datum] = $value;
$value_index++;
}
}
print_r($pivot);
This assumes you only have two levels of data and that the data is well behaved.

Answer 2

Not the best answer, but it solves your problem
<?php
$array = [
"ambition_id" =>
[
55 => "55",
60 => "60"
],
"target" =>
[
0 => "target 1",
1 => "target 2"
],
"strides" =>
[
0 => "1",
1 => "1"
],
"date" =>
[
0 => "2017-02-08",
1 => "2017-03-08"
],
"frequency" =>
[
0 => "1",
1 => "2"
],
];
$result = array();
foreach ($array as $k => $v) {
foreach ($v as $kk => $vv) {
if ($k == "ambition_id") {
$result[] = array($k => $vv);
} else {
$result[$kk][$k] = $vv;
}
}
}
Here is the test https://3v4l.org/UdHH8

Answer 3

Just use loop the array and user array_values to re-index the loop the inner array and store it into new array like below .
<?php
$new_array =array();
foreach($array as $key1=>$row1 )
{
$ss =array_values($row1);
foreach($ss as $key2=>$row2)
{
$new_array[$key2][$key1]=$row2;
}
}
echo "<pre>";
print_r($new_array);
?>
Output :
Array
(
[0] => Array
(
[ambition_id] => 55
[target] => target 1
[strides] => 1
[date] => 2017-02-08
[frequency] => 1
)
[1] => Array
(
[ambition_id] => 60
[target] => target 2
[strides] => 1
[date] => 2017-03-08
[frequency] => 2
)
)