I have an array contain this data
Array
(
[id] => Array
(
[0] => 1
[1] => 10
[2] => 4
)
[age] => Array
(
[0] => 1
[1] => 1
[2] => 2
)
)
Now I want to remove duplicates from the ['age'] and leave the first one in tact.
So this would return
Array
(
[id] => Array
(
[0] => 1
[2] => 4
)
[age] => Array
(
[0] => 1
[2] => 2
)
)
Any ideas? Or is there a function already in place to do this?
Like Gordon said, you'd need a custom function to make the relationship but you can use http://php.net/manual/en/function.array-unique.php ?
Wouldn't it be better to have the keys of the age array the corresponding values of the id array?
<?php
$array = array(
'id' => array(0 => 1, 1 => 10, 3 => 4),
'age' => array(0 => 1, 1 => 1, 2 => 2)
);
array_walk($array, 'dupe_killer');
print_r($array);
function dupe_killer(&$value, $key)
{
$value = array_unique($value);
}
?>
You could try this
$array = array('id' => array(1,10,4), 'age'=>array(1,1,2));
$age_array = array();
foreach ($array['age'] as $key => $val) {
if (in_array($val, $age_array))
unset($array['id'][$key], $array['age'][$key]);
$age_array[] = $val;
}
print_r($array);
this returns Array ( [id] => Array ( [0] => 1 [2] => 4 ) [age] => Array ( [0] => 1 [2] => 2 ) )
Regards
Luke
Related
I have 2 Array:
$arr1 = Array (
[2] => Array ( [0] => 41000 [1] => 31079 )
[3] => Array ( [0] => 42963 [1] => 41189 )
)
$arr2 = Array (
[2] => Array ( [0] => 40213 [1] => 42054 )
[3] => Array ( [0] => 42998 [1] => 34567 )
)
I want to combine these two arrays to this array with same key:
$arr3 = Array (
[2] => Array ( [0] => 40213 [1] => 42054 [2] => 41000 [3] => 31079 )
[3] => Array ( [0] => 42998 [1] => 34567 [2] => 42963 [3] => 41189 )
)
I tried almost anything (merge, combine, join) but I can't figure it out. Any suggestions?
This is a nice and easy thing to do.
$arr1 = [2 => [0 => 41000, 1 => 31079], 3 => [0 => 42963, 1 => 41189]];
$arr2 = [2 => [0 => 40213, 1 => 42054], 3 => [0 => 42998, 1 => 34567]];
function addArray(&$bucket, $water)
{
foreach ($water as $key => $drop) {
$bucket[$key] = array_merge($bucket[$key] ?? [], $drop);
}
}
$combined = [];
addArray($combined, $arr1);
addArray($combined, $arr2);
var_export($combined);
See a PHP fiddle here.
The output is:
array (
2 =>
array (
0 => 41000,
1 => 31079,
2 => 40213,
3 => 42054,
),
3 =>
array (
0 => 42963,
1 => 41189,
2 => 42998,
3 => 34567,
),
)
How does it work? I wrote a little function that would add the input arrays to an array that combines all arrays.
$arr1 = array(
2 => array(41000, 31079),
3 => array(42963, 41189)
);
$arr2 = array(
2 => array(40213, 42054),
3 => array(42998, 34567)
);
$arr3 = array();
foreach($arr1 as $key => $values){
if(!isset($arr3[$key])){
$arr3[$key] = array();
}
$arr3[$key] = array_merge($arr3[$key], $values);
}
foreach($arr2 as $key => $values){
if(!isset($arr3[$key])){
$arr3[$key] = array();
}
$arr3[$key] = array_merge($arr3[$key], $values);
}
echo '<pre>';
print_r($arr3);
Prints:
Array
(
[2] => Array
(
[0] => 41000
[1] => 31079
[2] => 40213
[3] => 42054
)
[3] => Array
(
[0] => 42963
[1] => 41189
[2] => 42998
[3] => 34567
)
)
I am currently working on a project where the fields scale when clicking on the "Add" button.
I am grouping each field like this: name="packaging[]", name="packaging[1]", name="packaging[2]" and so on. When I submit the form, this is how the data looks like when posted:
Array
(
[packaging] => Array
(
[0] => 1
[1] => 2
)
[quantity] => Array
(
[0] => 1
[1] => 2
)
[total-weight] => Array
(
[0] => 1
[1] => 2
)
[length] => Array
(
[0] => 1
[1] => 2
)
)
Using PHP I would like to convert the above code to look like this:
Array
(
[0] => Array
(
[packaging] => 1,
[quantity] => 1,
[total-weight] => 1,
[length] => 1,
)
[1] => Array
(
[packaging] => 2,
[quantity] => 2,
[total-weight] => 2,
[length] => 2,
)
)
Any help would be greatly appreciated.
Try this....
$array=array();
foreach($data as $key=>$value){
foreach($value as $k=>$val){
$array[$k][$key]=$val;
}
}
DEMO
Try this code:
$rows = array ('packaging' => array ('0'=> 1,'1' => 2),'quantity' => array('0'=> 1,'1' => 2),'total-weight' => array ('0'=> 1,'1' => 2),
'length' =>array ('0'=> 1,'1' => 2)
);
$res_array = array();
$total_records = count($rows['packaging']);
for($i=0;$i<$total_records;$i++)
{
$res_array[] = array('packaging'=>$rows['packaging'] [$i],'quantity'=>$rows['quantity'][$i],
'total-weight'=>$rows['total-weight'][$i],'length'=>$rows['length'] [$i]);
}
print_r($res_array);
I have array like this i need to count by array values
Array ( [Cop] => Array ( [0] => Dozen [1] => Dozen [2] => Akls [3] => Akls ) [MSN] => Array ( [0] => Dozen ) [NeK] => Array ( [0] => Suhan [1] => Ebao ) [NetSE] => Array ( [0] => SuZhan [1] => Guhang ) )
For example
Array ( [Cop] => Array ( [0] => Dozen [1] => Dozen [2] => Akls [3] => Akls ))
In the Cop key i have two different values for cop so i need cop should be 2
Cop - 2
MSn - 1
NeK - 2
NetSE - 2
I need the count like above how can i do this ?
Try simply using array_map,count,& array_unique like as
array_map(function($v) {
return count(array_unique($v));
}, $arr);
Use array_unique() and then count.
count(array_unique($array['Cop']));// output 2
If you want to print for every key do following:
$array = array('Cop'=>array('Dozen','Dozen','Akls','Akls'), 'MSN'=> array('Dozen'), 'NeK'=> array('Suhan','Ebao'));
foreach($array as $key => &$value) {
$value = count(array_unique($array[$key]));
}
print_r($array);
Output:
Cop = 2
MSN = 1
NeK = 2
You should use array_count_values() for that, here's an example:
$data = array('cop' => array(0 => 'test', 1 => 'test', 2 => 'test2'));
foreach($data as $item){
$result = array_count_values($item);
print_r($result);
}
Outputs:
Array
(
[test] => 2
[test2] => 1
)
I am trying to subtract parts of one nested array from another, but I'm having difficulty specifying the parts that I want to subtract as both values are numbers.
My arrays are, for example:
Array ( [0] => Array ( [id] => 43 [quantity] => 4 ) )
Array ( [0] => Array ( [id] => 43 [quantity] => 2 ) )
And after the subtraction I want the Result to be:
Array ( [0] => Array ( [id] => 43 [quantity] => 2 ) )
I'm using the following code to perform the subtraction, but I can't stop it from subtracting the id from itself:
foreach(array_keys($arrayA) as $id)
{
foreach(array_keys($arrayA[$id]) as $type)
{
$newArray[$id][$type] = $arrayA[$id][$type] - $arrayB[$id][$type];
}
}
print_r($newArray);
Could someone please tell me how I can just effect the [quantity] part of the array, without changing the [id]? With the code as it is I get:
Array ( [0] => Array ( [id] => 0 [quantity] => 2 ) )
Thanks in advance.
$ar1 = array(0 => array('id' => 43, 'quantity' => 4));
$ar2 = array(0 => array('id' => 43, 'quantity' => 2));
$new_array = array();
foreach($ar1 as $key => $value)
{
$new_array[$key] = array('id' => $value['id'], 'quantity' => ($value['quantity'] - $ar2[$key]['quantity']));
}
Array
(
[0] => Array
(
[id] => 43
[quantity] => 2
)
)
I have following arrays:
1) for total placed
Array
(
[0] => Array
(
[centers] => Array
(
[name] => delhi
[id] => 1
)
[0] => Array
(
[totalplaced] => 8
)
)
[1] => Array
(
[centers] => Array
(
[name] => mumbai
[id] => 2
)
[0] => Array
(
[totalplaced] => 1
)
)
)
2) for total working
Array
(
[0] => Array
(
[centers] => Array
(
[name] => delhi
[id] => 1
)
[0] => Array
(
[totalworking] => 4
)
)
[1] => Array
(
[centers] => Array
(
[name] => mumbai
[id] => 2
)
[0] => Array
(
[totalworking] => 1
)
)
)
3) for total trained
Array
(
[0] => Array
(
[centers] => Array
(
[name] => delhi
[id] => 1
)
[0] => Array
(
[totaltrained] => 8
)
)
[1] => Array
(
[centers] => Array
(
[name] => mumbai
[id] => 2
)
[0] => Array
(
[totaltrained] => 1
)
)
)
I wanted to merge these arrays so that the resultant array should look like this
[newarray] => Array(
[0] => Array (
[centers] => Array
(
[name] => delhi
[id] => 1
[totalplaced] => 8
[totalworking] => 4
[totaltrained] => 8
)
)
[1]=> Array(
[centers] => Array
(
[name] => mumbai
[id] => 2
[totalplaced] => 1
[totalworking] => 1
[totaltrained] => 1
)
)
)
This is the tabular representation of the above data which i want to display
centername totalplaced totalworking totaltrained
delhi 8 4 8
mumbai 1 1 1
Please help me on this.
Thanks
Pankaj Khurana
The difficulty here is that PHP's functions such as array_merge() and array_merge_recursive() will not merge data into numeric keys, but rather will re-key any duplicate numeric key. So for example given two arrays:
array(
'test' => 'abc',
0 => 'xyz'
);
array(
'test' => 'def',
0 => 'uvw'
);
Merging them together with array_merge() will produce an array like:
array(
'test' => 'def',
0 => 'xyz',
1 => 'uvw'
);
So, you need a custom function to be "additive" on any key, regardless of whether it is a string or numeric key. Try this:
function mixed_key_array_merge() {
$args = func_get_args();
$result = array();
foreach ($args as $arg) {
// discard non-array arguments; maybe this could be better handled
if (!is_array($arg)) {
continue;
}
foreach ($arg as $key => $value) {
if (!isset($result[$key])) {
$result[$key] = $value;
} else if (is_array($result[$key])) {
$result[$key] = call_user_func_array('mixed_key_array_merge',array($result[$key],$value));
}
}
}
return $result;
}