This question already has answers here:
Transpose a PHP multidimensional array with predefined keys
(3 answers)
How to transpose a multidimensional multi-file upload submission and maintain associative keys?
(4 answers)
Closed 1 year ago.
i have an array that i get from a form with alot of fields, i need to order those fields under an array and that array under the ''main'' array. Ill post what i have, and what i need to get.
WHAT I HAVE:
Array
(
[perfil_area1] => Array
(
[0] => a2
[1] => a3
)
[perfil_years] => Array
(
[0] => 2
[1] => 4
)
[perfil_function] => Array
(
[0] => f1
[1] => f4
)
[perfil_obs] => Array
(
[0] => teste1
[1] => teste2
)
[perfil_company] => Array
(
[0] => emp1
[1] => emp2
)
)
This is what i need to be so i can turn it into a query:
What i need
Array
(
[0] =>
(
[perfil_area1] => a2
[perfil_years] => 2
[perfil_function] => f1
[perfil_obs] => teste1
[perfil_company] => emp1
)
[1] =>
(
[perfil_area1] => emp2
[perfil_years] => 2
[perfil_function] => f4
[perfil_obs] => 4
[perfil_company] => a3
)
)
i have tried with 2 foreach but i didnt manage to get it done. I have read Create a multidimensional array in a loop , how to create multidimensional array using a foreach loop in php? , create multidimensional array using a foreach loop , Converting an array from one to multi-dimensional based on parent ID values and some more but i still cant do it. Any tips on how to create it?
You just need to loop over the input array and build the new array
$new = [];
foreach ($in as $key=>$arr) {
$new[0][$key] = $arr[0];
$new[1][$key] = $arr[1];
}
<?php
$result = [];
for ($i=0; $i<count(reset($array)); $i++) {
$result[] = array_combine(array_keys($array), array_column($array, $i));
}
Please read the manual for more details about array_combine(), array_keys() and array_column().
Related
This question already has answers here:
Group subarrays by one column, make comma-separated values from other column within groups
(2 answers)
Closed 3 years ago.
Here is the array which I have,
Array
(
[0] => Array
(
[number] => 2
[name] => ABC
)
[1] => Array
(
[number] => 3
[name] => ABC
)
[2] => Array
(
[number] => 1
[name] => XYZ
)
[3] => Array
(
[number] => 2
[name] => XYZ
)
)
what I want is...
Array
(
[0] => Array
(
[name] => XYZ
[number] => 1,2
)
[1] => Array
(
[name] => ABC
[number] => 2,3
)
)
it should be unique by name.
And numbers of particular name will be in comma separated.
please help me guys
Thanks in advance
You can do this in one loop but I prefer to do it in two loops as it will be easier to get the correct output with implode than adding commas and then removing them again.
Loop the array and build an associative array and make an array to collect the numbers.
Then loop again and implode the numbers to a string.
foreach($arr as $sub){
$res[$sub['name']]['name'] = $sub['name'];
$res[$sub['name']]['number'][] = $sub['number'];
}
foreach($res as &$sub){
$sub['number'] = implode(",", $sub['number']);
}
$res = array_values($res);
var_dump($res);
https://3v4l.org/PbGsu
You can use array_map, array_key_exists, array_values to get the desired results
$res = [];
array_map(function($v) use (&$res){
array_key_exists($v['name'], $res) ?
($res[$v['name']]['number'] = $res[$v['name']]['number'].','.$v['number'])
:
($res[$v['name']] = ['number' => $v['number'],'name' => $v['name']])
;
}, $arr);
$res = array_values($res);
Live Demo
To use
array_merge()
function.
If suppose your key values are same, your key and values are overwrites after merge your array.
This question already has answers here:
Implode a column of values from a two dimensional array [duplicate]
(3 answers)
Closed 6 years ago.
How to convert array within array to string, that means I am having a one result set having value of country id but the result set will be in array within array.
Something like below code :
Array
(
[0] => Array
(
[country_id] => 7
)
[1] => Array
(
[country_id] => 8
)
[2] => Array
(
[country_id] => 9
)
[3] => Array
(
[country_id] => 10
)
[4] => Array
(
[country_id] => 1
)
[5] => Array
(
[country_id] => 2
)
[6] => Array
(
[country_id] => 3
)
[7] => Array
(
[country_id] => 4
)
[8] => Array
(
[country_id] => 5
)
)
I want that country list into one string like 7,8,9,10,1,2,3,4,5 but without looping..
Anyone have idea please let me know...?
You can use array_column() and implode() function to do this.
Here is how you can do it,
$values=array_column($array,"country_id");
$country_string=implode($values);
array_column() returns the values from a single column of the input,
identified by the column_key(country_id).
implode() returns a string containing a string representation of all the array elements in the same order, with the glue string between
each element.
implode() can have two arguments, first as glue by which you want to join the elements and second as the array of elements. If first argument is not given then default glue is ",".
Use array_column and implode for (PHP 5 >= 5.5.0, PHP 7) as
$data = array_column($records, 'country_id');
echo implode(",",$data);
try this,
$newarray = array();
foreach ($array as $item) {
$newarray[] = $item['country_id'];
}
echo implode(",",$newarray);
i hope it will be helpful.
This question already has answers here:
PHP array replace numbers with keys
(2 answers)
Closed 6 years ago.
When doing a print_r on my array, I get the following output;
Array
(
[0] => Array
(
[id] => 178
[name] => Briar Price
)
[1] => Array
(
[id] => 90
[name] => Bradley Kramer
)
[2] => Array
(
[id] => 508
[name] => Calvin Yang
)
[3] => Array
(
[id] => 457
[name] => Charles Valenzuela
)
... and so on
How can I modify the array to look like this;
Array
(
[178] => Briar Price
[90] => Bradley Kramer
[508] => Calvin Yang
[457] => Charles Valenzuela
... and so on
)
I just want to make the ID the key for the value name. I always have issues when it comes to arrays reordering.
Pass third parameter to array_column to make its key as
$array = array_column($users, 'name', 'id');
print_r($array);
Use foreach() -
$newArr = array();
foreach ($your_array as $key => $val) {
$newArr[$val['id']] = $val['name'];
}
print_r($newArr) // desired output
I'd use array_combine which attaches new keys to values
$results = [
['id'=>1,'name'=>'John'],['id'=>2,'name'=>'Jane'],
];
$results = array_combine(
array_column($results,'id'), //use 'id' column as keys
array_column($results,'name') //use 'name' column as values
);
//now $results is [1=>'John', 2=>'Jane']
You can do it using array_column and array_combine PHP function without applying custom logic.
Here is how you do it,
<?php
$keys=array_column($mainarray,'id');
$values=array_column($mainarray,'name');
$finalarray=array_combine($keys,$values);
$finalarray will be your desired result.
array_combine creates an array by using one array for keys and another for its values.
array_column returns the values from a single column in the input array.
This question already has answers here:
Generate an associative array from an array of rows using one column as keys and another column as values
(3 answers)
Closed 7 months ago.
I have an array of array that looks like this:
Array
(
[0] => Array
(
[id] => I100
[name] => Mary
[gender] => F
)
[1] => Array
(
[id] => I101
[name] => John
[gender] => M
)
[2] => Array
(
[id] => I245
[name] => Sarah
[gender] => F
)
)
I want to set the key of the parent array with the value of id, so the result array looks like this:
Array
(
[I100] => Array
(
[id] => I100
[name] => Mary
[gender] => F
)
[I101] => Array
(
[id] => I101
[name] => John
[gender] => M
)
[I245] => Array
(
[id] => I245
[name] => Sarah
[gender] => F
)
)
If possible I'd like to avoid using an additional loop to go through the array and creating a new array to store each item with the proper key, as the array can have thousands of items.
Thanks in advanced!
Despite your caveat, a loop is the obvious solution:
$newArray = [];
foreach($oldArray as $item)
$newArray[$item['id']] = $item;
If the problem you have is not specifically with a loop, but rather creating a copy of the array is causes excessive memory consumption, then you can edit the array in place, with a for loop:
for($i=0; $i<count($oldArray); $i++){
$oldArray[$oldArray[$i]['id']] = $oldArray[$i];
unset($oldArray[$i]);
}
Note this works because the id elements are alphanumeric strings, if they where simple integars then the above code could overwrite sections.
The only other solution is to build the correct array in the 1st place, in a similar manner.
For example, using PDO::fetch instead of PDO::fetchAll:
//$newArray = $sth->fetchAll(PDO::FETCH_ASSOC);
$newArray = [];
while($row = $sth->fetch(PDO::FETCH_ASSOC))
$newArray[$row['id']] = $row;
You can't overwrite keys while iterating through an array "on the fly". So here is solution with array_map which produces an array with needed structure:
// assuming $arr is your initial array
$result = [];
array_map(function($a) use (&$result){
$result[$a['id']] = $a;
}, $arr);
// $result contains the needed array
You can add needed key during creation of this array.
I'm using a form where the pair of inputs can be added per automatic. One store value in select and the other as input
After submit I receive the values in array and I need to associate them together. So all key values [0] belongs together and all [1] and so on.
Array
(
[issue] => Array
(
[0] => 2
[1] => 3
)
[qty] => Array
(
[0] => 1
[1] => 2
)
)
How can I do this using PHP?
Just use a simple foreach loop.
$combined = array();
foreach ($_POST["issue"] as $k=>$v) {
$combined[$k] = array($_POST["issue"][$k], $_POST["qty"][$k]);
}
print_r($combined);