I wonder how to do this. I have two arrays, I need to assign them into a variable. The example below shows the output. When I print out the output using print_r(), the value that I want to match is "id_car"..
1) variable used for this array is $data.
Array ( [0] => 26 )
2) variable used for this array is $dataKereta.
Array ( [0] => Array ( [0] => 25 [id_car] => 25 [1] => 23 [id_user] => 23 )
[1] => Array ( [0] => 26 [id_car] => 26 [1] => 23 [id_user] => 24)
[2] => Array ( [0] => 27 [id_car] => 27 [1] => 23 [id_user] => 25 ) )
what i want is, find the same value in 1st array with 2nd array,if same assign them into variable..
I tried do like this
foreach ($dataKereta as $dk => $dk1) {
if($data[$dk] != $dk1['id_car']) {
$not_same[] = $dk1;
}
else {
$same[] = $dk1;
}
}
The code I made above has find the match value, if not match assign into the $not_same variable and otherwise.. this code is OK when have the value for 1st variable like this :
Array ( [0] => 25 [1] => 26 )
but if i remove the "[0] => 25" value,it start not detect the 26.. i'm sorry for bad english.
Try this if your data has multiple elements
ie, $data = (0=>'26',1=>'27');
foreach ($data as $dataval) {
foreach ($dataKereta as $key=>$dk) {
if ($dataval == $dk['id_car']) {
$same[] = $dk['id_car'];
}
}
}
foreach ($dataKereta as $key=>$dk) {
if (!in_array($dk['id_car'],$same)) {
$not_same[] = $dk['id_car'];
}
}
Result
same:
Array ( [0] => 26 [1] => 27 )
not_same:
Array ( [0] => 25 )
Related
i have a array placed in the variable $class that is constituted of sub arrays containing 2 student id's each,
i am trying to find all the sub arrays that contain a certain id for example 11
i want to keep all arrays containing this id in a variable.
array example
Array
(
[0] => Array
(
[s1] => 6
[s2] => 37
)
[1] => Array
(
[s1] => 8
[s2] => 11
)
[2] => Array
(
[s1] => 11
[s2] => 48
)
)
code
foreach ($class as $key => $value) {
if(!in_array($id, $class)){
unset($class[$key]);
}
}
You are close. If you loop and reference the correct variable with the in_array(), it would work as you hopefully need. Then assign the matching array into a new array var to use later (so you are not altering your original array!):
$id = 11;
$matched = array();
foreach ($class as $i => $students) {
if ( in_array($id, $students) ) {
$matched[] = $class[$i];
}
}
print_r($matched);
Would result in:
Array (
[0] => Array
(
[s1] => 8
[s2] => 11
)
[1] => Array
(
[s1] => 11
[s2] => 48
)
)
Associative array
http://php.net/manual/es/function.array-search.php
$class = array(array("s1"=>6, "s2"=>37),array("s1"=>8,"s2"=>11),array("s1"=>11, "s2"=>48));
$id = 11;
foreach ($class as $key => $value) {
if(!array_search($id, $value)){
unset($class[$key]);
}
}
Sorry, you can follow this answers
using array_search for multi dimensional array
I have the following array data:
[0] => stdClass Object
(
[schoolBin] => 110140014570
[schoolName] => школа-лицей № 66
[users] => 30
[tb0306_tb0301_id] => 514725
[tb0306_tb3002_id] => 17
[tb0306_countOfCorrectAnswers] => 14
[point] => 4
)
[1] => stdClass Object
(
[schoolBin] => 110140014570
[schoolName] => школа-лицей № 66
[users] => 30
[tb0306_tb0301_id] => 514725
[tb0306_tb3002_id] => 18
[tb0306_countOfCorrectAnswers] => 11
[point] => 4
)
So, i have many tb0306_tb0301_id from one schoolBin, and tb0306_tb0301_id has many tb0306_countOfCorrectAnswers of tb0306_tb3002_id. So i need to sum all tb0306_countOfCorrectAnswers of for all tb0306_tb0301_id of one schoolBin and i have many schoolBin, so i need to do the process for all schoolBin.
Tried the code:
$results = array();
foreach ($schoolResults as $schoolResult) {
$schoolBin = $schoolResult->schoolBin;
if (isset($results[$schoolBin])) {
$results[$schoolBin][] = $schoolResult;
} else {
$results[$schoolBin] = array($schoolResult);
}
}
But could not sum tb0306_countOfCorrectAnswers for one tb0306_tb0301_id.
Any helps guys!
here is the code to sum the tb0306_countOfCorrectAnswers for tb0306_tb0301_id of schoolBin. I use # to ingnore the worning for uninitial value.
$results = array();
foreach ($schoolResults as $schoolResult) {
#$result[$schoolResult->schoolBin][$schoolResult->tb0306_tb0301_id] += $schoolResult->tb0306_countOfCorrectAnswers
}
I have arrays within arrays, all with varying amounts of information. My CSV table currently has the fields Name, Email, and Phone Number.
Below is my array;
Array
(
[0] => Array
(
[0] => Name
[1] => Email
[2] => Phone Number
)
[1] => Array
(
[0] => Mick
[1] => mick#mick.com
[2] => 01234 324234
)
[2] => Array
(
[0] => james
[1] => james#james.com
[2] =>
)
[3] => Array
(
[0] => reg
[1] => reg#reg.com
[2] => 10293 467289
)
)
I wish to loop through and remove these null values and combine the Email and Phone Number into Info end up with an array which resembles
Array
(
[0] => Array
(
[0] => Name
[1] => Info
)
[1] => Array
(
[0] => Mick
[1] => mick#mick.com + 01234 324234
)
[2] => Array
(
[0] => james
[1] => james#james.com
)
[3] => Array
(
[0] => reg
[1] => reg#reg.com + 10293 467289
)
)
Here is my current script, I am recienving the error;
<b>Warning</b>: array_filter() expects parameter 2 to be a valid callback, no array or string given in <b>C:\Users\Lydia\Documents\XAMPP\htdocs\CSV.php</b> on line <b>21</b><br />
every time that I loop through the changeRow() function, any help greatly appreciated
index.php
<?php
include 'CSV.php';
header('Content-type: text/plain');
$file = read_csv('Book1.csv');
$input = changeRow($file);
CSV.php
....
....
function changeRow($rows){
$len = count($rows);
for($i = 0; $i < $len; $i++){
$rows = array_filter($rows[0],0);
}
}
Can use array_map() instead of foreach(). Example:
$file = read_csv('Book1.csv');
$input = array_map(function($v){
$phone = (isset($v[2]) && $v[2]) ? ' + '. $v[2] : '';
return array($v[0], $phone);
},$file );
if(isset($result[0][1])) $result[0][1] = 'Info';
print '<pre>';
print_r($input);
print '</pre>';
I'll provide two methods that output the requested array structure. (PHP Demo Link) These methods iterate the array, check if the iteration is dealing with the "column heading" subarray or not, then conditionally appending the value from subarray element [2] to subarray element [1] using + as glue.
Method #1: foreach()
foreach($array as $index=>$item){
if(!$index){
$result[]=['Name','Info'];
}else{
$result[]=[$item[0],$item[1].(strlen($item[2])?" + $item[2]":'')];
}
}
var_export($result);
Method #2 array_map()
var_export(
array_map(function($index,$item){
if(!$index){
return ['Name','Info'];
}else{
return [$item[0],$item[1].(strlen($item[2])?" + $item[2]":'')];
}
},array_keys($array),$array)
);
Output: (from either method)
array (
0 =>
array (
0 => 'Name',
1 => 'Info',
),
1 =>
array (
0 => 'Mick',
1 => 'mick#mick.com + 01234 324234',
),
2 =>
array (
0 => 'james',
1 => 'james#james.com',
),
3 =>
array (
0 => 'reg',
1 => 'reg#reg.com + 10293 467289',
),
)
ps. If you want to remove the $index==0 check that is iterated each time, you can manually overwrite the first subarray after the loop is finished like this: (PHP Demo Link) *this just means you will be "writing" data to the first subarray twice.
foreach($array as $item){
$result[]=[$item[0],$item[1].(strlen($item[2])?" + $item[2]":'')];
}
$result[0]=['Name','Info'];
var_export($result);
or
$result=array_map(function($item){return [$item[0],$item[1].(strlen($item[2])?" + $item[2]":'')];},$array);
$result[0]=['Name','Info'];
var_export($result);
pps. "Passing by Reference" can be used for this task, but I've elected not to use &$array because it can risk causing trouble "downscript" and many developers advise against using it until other methods are inadequate. Here is what that can look like: (PHP Demo Link)
foreach($array as &$item){
if(strlen($item[2])) $item[1].=" + $item[2]";
unset($item[2]);
}
$array[0]=['Name','Info'];
var_export($array);
unset($item); // var_export($item); // ($item = NULL)
My array is
Array
(
[0] => Array
(
[id] => 20
[new_id] => 958
[affiliate_id] => 33
)
[1] => Array
(
[id] => 21
[new_id] => 959
[affiliate_id] => 45
)
[2] => Array
(
[id] => 22
[new_id] => 960
[affiliate_id] => 23
)
[3] => Array
(
[id] => 23
[new_id] => 961
[affiliate_id] => 33
)
)
and i want array
Array
(
[0] => Array
(
[id] => 20
[new_id] => 958
[affiliate_id] => 33
)
[1] => Array
(
[id] => 21
[new_id] => 959
[affiliate_id] => 45
)
[2] => Array
(
[id] => 22
[new_id] => 960
[affiliate_id] => 23
)
)
I want to remove duplicates value of affiliate_id . According to first array i am getting affiliate_id's value is 33 for two time. But i want it for one time. So in my second array (which will be my answer) i remove it.
Try something like this, not so pretty as array_ one liners, but still:
$existing_aff_ids = array();
$unique = array();
foreach ($affiliate as $aff) {
if (!isset($existing_aff_ids[$aff['affiliate_id']])) {
$unique[] = $aff;
$existing_aff_ids[$aff['affiliate_id']] = 1;
}
}
Given $affiliates as in your answer, looping over the array and checking for affiliate_id would do the trick
$unique_affiliates = array();
foreach($affiliates as $affiliate) {
$affiliate_key = $affiliate['key'];
/* Variant 1 */
$unique_affiliates[$affiliate_key] = $affiliate;
/* Variant 2 */
if(!isset($unique_affiliates[$affiliate_key])) {
$unique_affiliates[$affiliate_key] = $affiliate;
}
}
All entries in $unique_affiliates will have unique affiliate_keys. Variant 1 will contain the last occurrence of each afffiliate_key (as in your example), whereas variant 2 will add the first occurrence of any affiliate_key and just ignore all subsequent ones.
These are not duplicate values :
1. $input = array_map("unserialize",
array_unique(array_map("serialize", $data))
2. array_values(array_unique($data))
Both this case fails because of the unique id values are there it requires all values to be same to consider it as duplicate.
Solution:Will making the array check the value of the corresponding field.
foreach($data as $key=>$val)
{
if (is_array($val))
{
$val2 = arrayUnique($val);
}
else
{
$val2 = $val;
$newArray=array_unique($data);
$newArray=deleteEmpty($newArray);
break;
}
if (!empty($val2))
{
$newArray[$key] = $val2;
}
}
print_r($newArray);
I have the following multidimensional array:
Array ( [0] => Array
( [id] => 1
[name] => Jonah
[points] => 27 )
[1] => Array
( [id] => 2
[name] => Mark
[points] => 34 )
)
I'm currently using a foreach loop to extract the values from the array:
foreach ($result as $key => $sub)
{
...
}
But I was wondering how do I see whether a value within the array already exists.
So for example if I wanted to add another set to the array, but the id is 1 (so the person is Jonah) and their score is 5, can I add the 5 to the already created array value in id 0 instead of creating a new array value?
So after the loop has finished the array will look like this:
Array ( [0] => Array
( [id] => 1
[name] => Jonah
[points] => 32 )
[1] => Array
( [id] => 2
[name] => Mark
[points] => 34 )
)
What about looping over your array, checking for each item if it's id is the one you're looking for ?
$found = false;
foreach ($your_array as $key => $data) {
if ($data['id'] == $the_id_youre_lloking_for) {
// The item has been found => add the new points to the existing ones
$data['points'] += $the_number_of_points;
$found = true;
break; // no need to loop anymore, as we have found the item => exit the loop
}
}
if ($found === false) {
// The id you were looking for has not been found,
// which means the corresponding item is not already present in your array
// => Add a new item to the array
}
you can first store the array with index equal to the id.
for example :
$arr =Array ( [0] => Array
( [id] => 1
[name] => Jonah
[points] => 27 )
[1] => Array
( [id] => 2
[name] => Mark
[points] => 34 )
);
$new = array();
foreach($arr as $value){
$new[$value['id']] = $value;
}
//So now you can check the array $new for if the key exists already
if(array_key_exists(1, $new)){
$new[1]['points'] = 32;
}
Even though the question is answered, I wanted to post my answer. Might come handy to future viewers. You can create new array from this array with filter then from there you can check if value exist on that array or not. You can follow below code. Sample
$arr = array(
0 =>array(
"id"=> 1,
"name"=> "Bangladesh",
"action"=> "27"
),
1 =>array(
"id"=> 2,
"name"=> "Entertainment",
"action"=> "34"
)
);
$new = array();
foreach($arr as $value){
$new[$value['id']] = $value;
}
if(array_key_exists(1, $new)){
echo $new[1]['id'];
}
else {
echo "aaa";
}
//print_r($new);