I have a 1d array as follows:
$arr = [
'itemName0' => "first Item",
'itemDesc0' => "first item's description",
'itemName1' => "second item",
'itemDesc1' => "third item's description",
];
and i would like to convert it to a 2d array as follows
$arr = [
0 => [
'itemName' => "first Item",
'itemDesc' => "first item's description",
],
1 => [
'itemName' => "second item",
'itemDesc' => "Second item's description",
],
];
Actually i have data coming from an api response which contains other details apart from the item.....{index} eg
$arr = [
'status' => 'success',
'blahblah' => 'this is just a test',
'itemName0' => "first Item",
'itemDesc0' => "first item's description",
'itemName1' => "second item",
'itemDesc1' => "third item's description",
];
but i need only the item data.
i have tried to use array_map as follows to get the items but could not..
array_map(function($value, $key){ strpos($key, 'item') === false ? false : $value; }, $arr));
im still trying.. anyideas would be really helpful
You can try this -
$arr = [
'itemName0' => "first Item",
'itemDesc0' => "first item's description",
'itemName1' => "second item",
'itemName2' => "second item's description",
];
$new = [];
foreach($arr as $key => $value) {
$index = sscanf($key, '%[A-Za-z]%d');
if(strpos($key, 'item') === 0) {
$new[$index[1]][$index[0]] = $value;
}
}
Output
array(3) {
[0]=>
array(2) {
["itemName"]=>
string(10) "first Item"
["itemDesc"]=>
string(24) "first item's description"
}
[1]=>
array(1) {
["itemName"]=>
string(11) "second item"
}
[2]=>
array(1) {
["itemName"]=>
string(25) "second item's description"
}
}
$arr = [
'itemName0' => "first Item",
'itemDesc0' => "first item's description",
'itemName1' => "second item",
'itemName2' => "third item's description",
'testKey1' => "Should be ignored",
'itemData' => "No numeric, so should also be ignored"
];
$newArray = [];
foreach($arr as $key => $value) {
list($keyName, $keyNumber) = sscanf($key, 'item%[A-Za-z]%d');
if (!is_null($keyNumber)) {
$newArray[$keyNumber]['item'.$keyName] = $value;
}
}
var_dump($newArray);
The simplest i can make is,
$process = array_filter($arr, function($key){
return (strpos($key, 'itemName') !== false && ctype_digit(substr($key, 8)))
||
(strpos($key, 'itemDesc') !== false && ctype_digit(substr($key, 8)));
}, ARRAY_FILTER_USE_KEY);
$final = [];
foreach ($process as $key => $value)
{
$final[substr($key, 8)][substr($key, 0, 8)] = $value;
}
First, create an empty multi-dimensional array:
$multi_arr = array();
Then, traverse the original array,
foreach($arr as $key => $val) { <br/>
//get last character from key<br/>
$k = substr($key, -1);<br/>
//get key index value from original key by removing last character<br/>
$index = rtrim($key, $k);<br/>
//Push values to multi dimensional array<br/>
$multi_arr[$k][$index] = $val;<br/>
}
Using Array Chunk method is the easiest of all
$input_array = array('a', 'b', 'c', 'd', 'e','f');
print_r(array_chunk($input_array, 2));
output:
Array
(
[0] => Array
(
[0] => a
[1] => b
)
[1] => Array
(
[0] => c
[1] => d
)
[2] => Array
(
[0] => e
[1] => f
)
)
It's maybe too late to answer, but I've made a function to split arrays into as groups as you like.
function SplitInto($array, $groups = 2)
{
$members = count($array) / $groups;
if (count($array) % $groups) $members = (int)(count($array) / $groups) + 1;
return array_chunk($array, $members);
}
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