Is it possible to create a new array from the keys of another like following?
it is a dynamic array chk_values are dynamically changed depends on condition
Array
(
[actBtn] => update
[chkCount] => 5
[chk_1] => 2
[chk_2] => 3
[chk_3] => 2
[chk_4] => 3
[chk_5] => 3
)
and i want array like this for update database
$chckpoint = Array(
[chk_1] => 2
[chk_2] => 3
[chk_3] => 2
[chk_4] => 3
[chk_5] => 3)
Simply process the original array and only move to the new array where the key starts with chk_
$in = ['actBtn' => 'update',
'chkCount' => 5,
'chk_1' => 2,
'chk_2' => 3,
'chk_3' => 2,
'chk_4' => 3,
'chk_5' => 3
];
foreach($in as $k=>$v){
if ( strpos($k,'chk_') !== false ){ $chckpoint[$k] = $v; }
}
print_r($chckpoint);
RESULT
Array
(
[chk_1] => 2
[chk_2] => 3
[chk_3] => 2
[chk_4] => 3
[chk_5] => 3
)
You can simply take the input array and check for all keys beginning with chk_. If the key matches, take it to the new array.
$chckpoint = [];
foreach($input as $key => $value)
{
if(substr($key, 0, 4) == 'chk_') $chkpoint[$key] = $value;
}
Related
I have an array with some repeating string values. How to replace these string values (as a whole, because some words are repeated in others strings) with corresponding specific numeric values, as bellow?
deloc = 1
foarte puţin = 2
mediu = 3
mult = 4
foarte mult = 5
This is the array (example):
array = (
"tensionat" => "mediu",
"trist" => "mult",
"melancolic" => "deloc",
"fara_speranta" => "foarte puțin",
"nefolositor"] => "deloc",
"ingrijorat" => "foarte mult",
"amarat" => "deloc",
"anxios" => "mediu"
);
How can this
Try this
$data = array (
"tensionat" => "mediu",
"trist" => "mult",
"melancolic" => "deloc",
"fara_speranta" => "foarte puțin",
"nefolositor" => "deloc",
"ingrijorat" => "foarte mult",
"amarat" => "deloc",
"anxios" => "mediu"
);
$repl = array (
'deloc' => 1,
'foarte puţin' => 2,
'mediu' => 3,
'mult' => 4,
'foarte mult' => 5,
);
$result = array ();
foreach ($data as $key => $value) {
$result[$key] = !empty($repl[$value]) ? $repl[$value] : $value;
}
print_r($result);
Output:
Array
(
[tensionat] => 3
[trist] => 4
[melancolic] => 1
[fara_speranta] => foarte puțin
[nefolositor] => 1
[ingrijorat] => 5
[amarat] => 1
[anxios] => 3
)
this is quite beyond me. Appreciate some help.
I have an array in php like so:
[0] => Array
(
[cust_id] => 1006
[no_of_subs] => 2
[dlv_id] => 1000
)
[1] => Array
(
[cust_id] => 1011
[no_of_subs] => 3
[dlv_id] => 1000
)
[2] => Array
(
[cust_id] => 1012
[no_of_subs] => 5
[dlv_id] => 1001
)
[3] => Array
(
[cust_id] => 1013
[no_of_subs] => 6
[dlv_id] => 1001
)
I don't need the cust_id field. I just need to group the dlv_id and the sum of no_of_subs for each matching dlv_id. The result should look like this:
[0] => Array
(
[dlv_id] => 1000
[no_of_subs] => 5
)
[1] => Array
(
[cust_id] => 1011
[no_of_subs] => 11
)
Thank you for any help.
I don't understand the downvotes for this question. Am i doing it all wrong? Downvoting without a reason is not helping.
The simplest, most efficient way to group and sum is to perform a single loop and assign temporary associative keys.
When a row is identified as a new dlv_id row, save the two desired elements, otherwise add the no_of_subs value to the pre-existing value.
Optionally, remove the temporary keys with array_values().
Code (Demo)
$array = [
["cust_id" => 1006, "no_of_subs" => 2, "dlv_id" => 1000],
["cust_id" => 1011, "no_of_subs" => 3, "dlv_id" => 1000],
["cust_id" => 1012, "no_of_subs" => 5, "dlv_id" => 1001],
["cust_id" => 1013, "no_of_subs" => 6, "dlv_id" => 1001]
];
foreach ($array as $row) {
if (!isset($result[$row["dlv_id"]])) {
$result[$row["dlv_id"]] = ["dlv_id" => $row["dlv_id"], "no_of_subs" => $row["no_of_subs"]];
} else {
$result[$row["dlv_id"]]["no_of_subs"] += $row["no_of_subs"];
}
}
var_export(array_values($result));
Output:
array (
0 =>
array (
'dlv_id' => 1000,
'no_of_subs' => 5,
),
1 =>
array (
'dlv_id' => 1001,
'no_of_subs' => 11,
),
)
Using array_column function, we can extract out dlv_id and no_of_subs separately in two different arrays, using cust_id as the key.
Now, simply loop over the array of dlv_id, and if matching key found, add the no_of_subs to it, else set the value (for the first time).
We use isset function to check if the key exists already or not.
Try the following:
// your input array is $input_array
// get all dlv_id maintaining the cust_id as index
$dlv_id = array_column($input_array, 'dlv_id', 'cust_id');
// get all no_of_subs maintaining the cust_id as index
$no_of_subs = array_column($input_array, 'no_of_subs', 'cust_id');
$output = array();
foreach ($dlv_id as $key => $value) {
if (isset($output[$value]['dlv_id'])) {
$output[$value]['dlv_id'] += $no_of_subs[$key];
} else {
$output[$value]['dlv_id'] += $no_of_subs[$key];
}
}
I have the following multidimensional array. I had to create keys the way it looks to group them accordingly.
Array
(
[Oranges] => Array
(
[Name] => Oranges
[l.VA123] => 17
[l.MA123] => 12
[l.GA123] => 9
[l.CT123] => 5
)
[Apple] => Array
(
[Name] => Apple
[l.CA123] => 13
)
[Grapes] => Array
(
[Name] => Grapes
[l.WI123] => 8
[l.FL123] => 5
)
)
However, I need all the subarrays to have the same keys. Missing ones should be filled with a value of 0. The final array should be like below so that all subarrays have equal length.
Array
(
[Oranges] => Array
(
[Name] => Oranges
[l.VA123] => 17
[l.MA123] => 12
[l.GA123] => 9
[l.CT123] => 5
[l.CA123] => 0
[l.WI123] => 0
[l.FL123] => 0
)
[Apple] => Array
(
[Name] => Apple
[l.CA123] => 13
[l.WI123] => 0
[l.FL123] => 0
[l.VA123] => 0
[l.MA123] => 0
[l.GA123] => 0
[l.CT123] => 0
)
[Grapes] => Array
(
[Name] => Grapes
[l.WI123] => 8
[l.FL123] => 5
[l.CA123] => 0
[l.VA123] => 0
[l.MA123] => 0
[l.GA123] => 0
[l.CT123] => 0
)
)
You need a simple + operator. As from manual:
The + operator returns the right-hand array appended to the left-hand array; for keys that exist in both arrays, the elements from the left-hand array will be used, and the matching elements from the right-hand array will be ignored.
$items = Array
(
'Oranges' => Array
(
'Name' => 'Oranges',
'l.VA123' => 17,
'l.MA123' => 12,
'l.GA123' => 9,
'l.CT123' => 5,
),
'Apple' => Array
(
'Name' => 'Apple',
'l.CA123' => 13,
),
'Grapes' => Array
(
'Name' => 'Grapes',
'l.WI123' => 8,
'l.FL123' => 5,
),
);
// static keys
$keys = [
'l.VA123' => 0,
'l.MA123' => 0,
'l.GA123' => 0,
'l.CT123' => 0,
'l.CA123' => 0,
'l.WI123' => 0,
'l.FL123' => 0,
];
// keys generated from source array, tricky approach
$keys = array_fill_keys(
// here we merge all elements of `$items` into one array
// as keys are repeated - you definitely got all keys that
// can be in `$items`, `array_keys` will give you these keys
// `array_fill_keys` will create array where key is what you need
// and value is 0.
array_keys(call_user_func_array('array_merge', $items)),
0
);
// keys generated from source array, SIMPLE approach
$keys = [];
foreach ($items as $item) {
foreach ($item as $k => $v) {
if ($k != 'Name') {
$keys[$k] = 0;
}
}
}
foreach ($items as &$item) {
$item = $item + $keys;
}
print_r($items);
Probably someone can come up with something more efficient, but without a list of keys that you want, I think you'll need to take a couple of passes of the array:
<?php
$fruits = [
"Oranges"=>["Name"=>"Oranges", "l.VA123"=>17, "l.MA123"=>12, "1.GA123"=>9, "1.CT123"=>5],
"Apple"=>["Name"=>"Apple", "1.CA123"=>13],
"Grapes"=>["Name"=>"Grapes", "1.WI123"=>8, "1.FL123"=>5]
];
$keys = [];
foreach ($fruits as $fruit) {
unset($fruit["Name"]);
$keys = array_merge($keys, array_keys($fruit));
}
$keys = array_fill_keys(array_unique($keys), 0);
foreach ($fruits as &$fruit) {
$fruit = array_merge($keys, $fruit);
}
print_r($fruits);
Since all keys and default values are "known", create an associative array, use a foreach() and modify the rows by reference, and use the union-assignment (combined) operator. This will allow the original values to overwrite the default values.
Code: (Demo)
$keys = [
'l.VA123' => 0,
'l.MA123' => 0,
'l.GA123' => 0,
'l.CT123' => 0,
'l.CA123' => 0,
'l.WI123' => 0,
'l.FL123' => 0,
];
foreach ($items as &$row) {
$row += $keys;
}
var_export($items);
If you want the keys to be consistently positioned, then use array_replace() or array_merge() instead of the union assignment operator.
Code: (Demo)
foreach ($items as &$row) {
$row = array_replace($keys, $row);
}
I need your help with my problem. My problem is I have 2 arrays the first one is the main array. The second is the array for my new data.
Let's say I have these arrays.
This is the main array:
Array
(
0 => Array
(
'id' => 1,
'name' => 'Apple',
'age' => 12
)
1 => Array
(
'id' => 2,
'name' => May,
'age' => 13
)
)
This is the second array:
Array
(
1 => Array
(
'gender' => 'Male'
)
2 => Array
(
'gender' => 'Female'
)
)
And I have this loop in PHP
foreach($main_array as &$main){
//this is the loop inside the first array
// how can I add the second array with it?
}
This is the sample output:
[0] => Array
(
[id] => 1
[name] => Apple
[age] => 12
[gender] => Female
)
[1] => Array
(
[id] => 2
[name] => May
[age] => 13
[gender] => Female
)
How can I do that? Any suggestions? That's all thanks.
for($i=0; $i<count($main_array); $i++){
for($j=0; $j<count($second_array); $j++){
if($main_array[$i]['id'] == $j){
$main_array[$i]['gender'] = $second_array[$j]['gender']
}
}
}
I fixed your example code, it wont run otherwise.
<?php
// Test data:
$main_array = Array(
0 => Array(
'id' => 1,
'name' => 'Apple',
'age' => 12
),
1 => Array (
'id' => 2,
'name' => 'May',
'age' => 13
)
);
$lookup = Array(
1 => Array(
'gender' => 'Male'
),
2 => Array(
'gender' => 'Female'
)
);
// Your answer:
foreach ($main_array as &$main) {
if (array_key_exists($main['id'],$lookup)) {
$main['gender'] = $lookup[$main['id']]['gender']; // <-- sets gender value
}
}
// Output it to browser:
echo '<pre>$main_array = '.print_r($main_array,true).'</pre>';
The array_key_exists() check is there to avoid errors such as PHP Notice: Undefined offset: 123 when the $lookup data is incomplete.
If you want to merge all of the data from both arrays:
PHP tools:
The exact behaviors of these functions needs to be studied and tested before usage, to make sure it fits your intent.
// array merge recursive doesn't merge numeric keys
$main_array = array_merge_recursive($main_array, $secondary_array);
// array replace recursive has a downside of replacing stuff
$main_array = array_replace_recursive($main_array, $secondary_array);
Rolling your own:
foreach($main_array as $i => &$main){
if(isset($secondary_array[$i])) {
foreach($secondary_array[$i] AS $key => $value) {
$main[$key] = $value;
}
}
}
Both of the above solutions only apply if the array-indexes of $main_array and $secondary_array match.
In your example your arrays don't match:
- $secondary_array[0] doesn't exist so $main_array[0] will not be populated with a 'gender' value;
- $main_array[2] doesn't exist so $main_array[2] will be created and it will only have a 'gender' value same as $secondary_array[2]['gender']
If you want to only merge some bits and pieces of the arrays:
Rolling your own:
foreach($main_array as $i => &$main) {
if(isset($secondary_array[$i])) and isset($secondary_array[$i]['gender'])) {
$main['gender'] = $secondary_array[$i]['gender'];
}
}
foreach($main_array as &$main){//this is the loop inside the first array
foreach($second_array as &$second){ //this is the loop inside the second array
}
}
foreach($arr1 as $k => $arr1Item) {
$arr1[$k]['gender'] = $arr2[$k]['gender'];
}
output via print_r in php from jquery.serilizeArray()
Array (
[pnr_item_2] => 2
[pkt_item_2] => Hosting L
[desc_item_2] => Domain + Hosting
[qty_item_2] => 9
[price_item_2] => 12.4
[pnr_item_1] => 1
[pkt_item_1] => HostingXXL
[desc_item_1] => 20GB, 1x.de
[qty_item_1] => 2
[price_item_1] => 15.5
[pnr_item_3] => 3
[pkt_item_3] => Domain
[desc_item_3] => Standarddomain
[qty_item_3] => 6
[price_item_3] => 5
[pnr_item_4] => 3
[pkt_item_4] => Domain
[desc_item_4] => Standarddomain
[qty_item_4] => 7
[price_item_4] => 5
[action] => save
[mysql] => update
[total] => 351.1
)
Does exist a possibility to split an Array in groups by using the _item_##-number?
I want to save items to my first MySQL table, action is the executet function, which I get via $_POST[action] and [total] have to be saved in a extra (2nd) MySQL-table.
Based on my guess at the question's meaning ;)
//$yourArr = array(all,your,input);
$action = $yourArr['action'];
$mysql = $yourArr['mysql'];
$total = $yourArr['total'];
unset( $yourArr['action'] , $yourArr['mysql'] , $yourArr['total'] );
foreach ($yourArr as $k => $v) {
list($type,$num) = explode('_item_',$k);
$items[$num][$type] = $v;
}
Than you have, for example:
$items = array(
[2]['pnr'] => 2,
[2]['pkt'] => 'Hosting L',
[2][['desc_item'] => 'Domain + Hosting'
...
);
disclaimer: I didn't actually test this
You can loop over the array:
$items = array();
foreach($array as $key=>$value) {
if(stripos($key, '_item_' !== false)) {
$items[$key] = $value;
unset($array[$key]);
}
}
Then $items contain all elements that have _item_ in the key and $array the rest.
But easier would be to save total first and remove action, mysql and total from the array. So just reversing both operations.