I want to get calleridnum without using array . Is this possible?
or is there other way to do this ?
I have this code :
$participants = [
[ 'calleridnum' => 1,
'test' => 'yay'
],
[ 'calleridnum' => 2,
'test' => 'yay'
],
[ 'calleridnum' => 3,
'test' => 'yay'
]
];
$conferance_participants = [
[ 'uid' => 1,
'test' => 'yay2',
'dit' => 'deze'
],
[ 'uid' => 2,
'test' => 'test',
'dit' => 'wew'
]
];
foreach ($participants as $key=>$p) {
foreach ($conferance_participants as $key=>$cp) {
if ($p['calleridnum'] == $cp['uid']) {
$calleridnum[] = $p['calleridnum'];
}
}
}
print_r( $calleridnum );
My output is:
Array ( [0] => 1 [1] => 2 )
but I want the output to be like this
1,2
Use implode() outside of foreach loop
echo $str = implode (",", $calleridnum);
Try this: Implode your array to be converted into string.
$calleridnum= [];
foreach ($participants as $key=>$p) {
foreach ($conferance_participants as $key=>$cp) {
if ($p['calleridnum'] == $cp['uid']) {
$calleridnum[] = $p['calleridnum'];
}
}
}
$result = implode(',', $calleridnum);
echo $result;
I'll simply use array_intersect,array_column along with implode as
echo implode(',', array_intersect(array_column($conferance_participants,'uid'), array_column($participants,'calleridnum')));
Demo
Related
I've a huge problem. Somehow I need to get the variation_id from an array based on a value of a child array:
$array = [
[
'attributes' => [
'attribute_art-der-karte' => 'Rot'
],
'variation_id' => '222'
],
[
'attributes' => [
'attribute_art-der-karte' => 'Green'
],
'variation_id' => '221'
]
];
So in my case I've two things available:
The key attribute_art-der-karte
The value Rot
I found nothing here instead of a sorting. Any idea? Thanks!
Simply loop over the array and return the variation ID when your condition is met (an attribute exists with the given key and the given value):
function findVariationId(array $array, string $attrName, string $attrValue): ?string {
foreach ($array as $entry) {
if (($entry['attributes'][$attrName] ?? null) === $attrValue) {
return $entry['variation_id'];
}
}
return null;
}
Demo
You can also use array filter for this
<?php
$array = [
[
'attributes' => [
'attribute_art-der-karte' => 'Rot'
],
'variation_id' => '222'
],
[
'attributes' => [
'attribute_art-der-karte' => 'Green'
],
'variation_id' => '221'
]
];
function findByAttribute ($arr, $value) {
$result = array_filter($arr, function($elem) use($value){
return $elem['attributes']['attribute_art-der-karte'] == $value;
});
if ($result) {
return array_shift($result)['variation_id'];
}
return '';
}
var_dump(findByAttribute($array, 'Rot')); // gives '222'
var_dump(findByAttribute($array, 'a')); // returns ''
var_dump(findByAttribute($array, 'Green')); // gives 221
An additional option using array_search() and array_column():
<?php
$array = [
['attributes' => ['attribute_art-der-karte' => 'Rot'], 'variation_id' => '222'],
['attributes' => ['attribute_art-der-karte' => 'Green'], 'variation_id' => '221']
];
$key = array_search (
'Rot',
array_column(array_column($array, 'attributes'), 'attribute_art-der-karte')
);
echo "variation_id: ". (($key === false) ? 'Not found' : $array[$key]["variation_id"]);
?>
Output:
variation_id: 222
You can access the element variation_id using foreach
// One way using loops identify the non-array element
foreach($array as $ele){
if(!is_array($ele)){
print_r($ele);
}
}
// Otherway for direct calling
print_r($array['variation_id']);
I have an array as key => value pair such as:
$array = [ 10 => 'Windows', 12 => 'Keyboard', 15 => 'Monitor' ];
What I would like to achieve without using any foreach or loops the following:
$converted = [
0 => [ 'id' => 10, 'name' => 'Windows'],
1 => [ 'id' => 12, 'name' => 'Keyboard'],
2 => [ 'id' => 15, 'name' => 'Monitor']
];
Here they indices in new array doesn't matter. Any tips??
No foreach and no loop, but now there is a closure:
$result = array_map(function ($id, $name) {
return [
'id' => $id,
'name' => $name
];
}, array_keys($array), array_values($array));
Even if there was a PHP function that did this exactly, it would be using a loop internally.
function do_what_ghazanfar_mir_wants(array $array) {
return array_map(function ($id, $name) {
return [
'id' => $id,
'name' => $name
];
}, array_keys($array), array_values($array));
}
And the single liner is:
$result = do_what_ghazanfar_mir_wants($array);
And the foreach approach for comparison:
$res = [];
foreach ($array as $id => $name) {
$res[] = [ 'id' => $id, 'name' => $name ];
}
If you want to keep it really short then array_walk will do it in one line:
array_walk($array, function(&$value, $key) { $value = ['id' => $key, 'name' => $value]; });
See https://3v4l.org/OEohi
But I think a foreach loop is probably going to be a lot more readable.
Do it with array_map(), Just pass the keys array_keys($array) and values $array as the parameter of your array_map()
<?php
$array = [ 10 => 'Windows', 12 => 'Keyboard', 15 => 'Monitor' ];
function map_by_key($m, $n)
{
return(array('id' => $m, 'name'=>$n));
}
$output = array_map("map_by_key", array_keys($array),$array);
print '<pre>';
print_r($output);
print '</pre>';
?>
DEMO: https://3v4l.org/iTVSm
This question already has answers here:
Group subarrays by one column, make comma-separated values from other column within groups
(2 answers)
Closed last month.
I have a two dimensional array which needs to be restructured. Rows must be grouped by date values, and within each group, the name values should be formed into a single comma-delimited string.
My input:
$missedFridgeLog = [
[
"date" => "01/01/18",
"name" => "Medicine"
],
[
"date" => "01/01/18",
"name" => "Drugs"
],
[
"date" => "02/01/18",
"name" => "Medicine"
],
[
"date" => "02/01/18",
"name" => "Drugs"
]
];
I have tried implementing a solution from Implode or join multidimentional array with comma, but it did not work as desired.
Desired output:
[
[
'date' => '01/01/18',
'name' => 'Medicine,Drugs',
],
[
'date' => '02/01/18',
'name' => 'Medicine,Drugs',
]
]
$missedFridgeLog = [
[
"date" => "01/01/18",
"name" => "Medicine"
],[
"date" => "01/01/18",
"name" => "Drugs"
]
[
"date" => "02/01/18",
"name" => "Medicine"
],
[
"date" => "02/01/18",
"name" => "Drugs"
]
];
$byDates = [];
foreach ($missedFridgeLog as $mfg) {
$byDates[$mfg['date']][] = $mfg['name'];
}
$res = [];
foreach ($byDates as $date => $name) {
$res[] = [
'name' => join(',',$name),
'date' => $date
];
}
var_dump($res);
You need to search key, value pair everytime you make a insert or update to result array. use this function() to search associate array. If match then update with additional name info else make a new insert to result array.
function filter_array($array){
///$array your previous array data
$result = array();
foreach($array["missedFridgeLog"] as $m){
$flag = true;
foreach($result as $k=>$r) {
if (is_in_array($r, "date", $m["date"]) == "yes") {
$result[$k]["name"] = $r["name"] . ',' . $m["name"];
$flag = false;
break;
}
}
if($flag==true){
$result[] = $m;
}
}
return array("missedFridgeLog"=>$result);
}
function is_in_array($array, $key, $key_value){
$within_array = 'no';
foreach( $array as $k=>$v ){
if( is_array($v) ){
$within_array = is_in_array($v, $key, $key_value);
if( $within_array == 'yes' ){
break;
}
} else {
if( $v == $key_value && $k == $key ){
$within_array = 'yes';
break;
}
}
}
return $within_array;
}
May be this is not the best way to do this, but it will help
$arr['missedFridgeLog'] = [
[
'date' => '01/01/18',
'name' => 'Medicine1'
],
[
'date' => '02/01/18',
'name' => 'New Medicine2'
],
[
'date' => '01/01/18',
'name' => 'Drugs1'
],
[
'date' => '02/01/18',
'name' => 'Medicine2'
],
[
'date' => '01/01/18',
'name' => 'New Drugs1'
],
[
'date' => '02/01/18',
'name' => 'Drugs2'
]
];
echo "<pre>";
$new_arr = array();
$date = array();
foreach ($arr['missedFridgeLog'] as $k => $a) {
if (in_array($a['date'], $date))
continue;
$new_arr[$k]['name'] = $a['name'];
$new_arr[$k]['date'] = "";
foreach ($arr[missedFridgeLog] as $key => $val) {
if ($key != $k) {
if ($a['date'] == $val['date']) {
$date[] = $new_arr[$k]['date'] = $a['date'];
$new_arr[$k]['name'] .= ", " . $val['name'];
}
}
}
if (empty($new_arr[$k]['date']))
unset($new_arr[$k]);
}
print_r($new_arr);
You can try below :-
Input array :-
$chkArray = [
'missedFridgeLog' => [
'0' => [
'date' => '01/01/18',
'name' => 'Medicine'
],
'1' => [
'date' => '01/01/18',
'name' => 'Drugs'
],
'2' => [
'date' => '02/01/18',
'name' => 'Medicine'
],
'3' => [
'date' => '02/01/18',
'name' => 'Drugs'
],
'4' => [
'date' => '02/01/18',
'name' => 'My Drugs'
]
]
];
$i = 0;
$finalarray = array();
foreach($chkArray['missedFridgeLog'] as $key=>$value) {
$checkExist = array_search($value['date'], array_column($finalarray, 'date'), true);
if($checkExist !== false) {
$finalarray[$checkExist]['name'] = $finalarray[$checkExist]['name'].','.$value['name'];
}
else {
$finalarray[$i]['date'] = $value['date'];
$finalarray[$i]['name'] = $value['name'];
$i++;
}
}
print_r($finalarray);
OutPut :-
Array
(
[0] => Array
(
[date] => 01/01/18
[name] => Medicine,Drugs
)
[1] => Array
(
[date] => 02/01/18
[name] => Medicine,Drugs,My Drugs
)
)
Do not use:
More than one loop,
Nested loops,
in_array(), or
array_search().
You only need one loop to apply temporary grouping keys. When a date/group is encountered after the first time, append its name value to the group's name value. When finished iterating, re-index the array.
Code: (Demo)
$result = [];
foreach ($missedFridgeLog as $row) {
if (!isset($result[$row['date']])) {
$result[$row['date']] = $row;
} else {
$result[$row['date']]['name'] .= ",{$row['name']}";
}
}
var_export(array_values($result));
Output:
array (
0 =>
array (
'date' => '01/01/18',
'name' => 'Medicine,Drugs',
),
1 =>
array (
'date' => '02/01/18',
'name' => 'Medicine,Drugs',
),
)
The question is simple, I want to create the array below dynamically, but the code I got now only outputs the last row. Is there anybody who knows what is wrong with my dynamically array creation?
$workingArray = [];
$workingArray =
[
0 =>
[
'id' => 1,
'name' => 'Name1',
],
1 =>
[
'id' => 2,
'name' => 'Name2',
]
];
echo json_encode($workingArray);
/* My not working array */
$i = 0;
$code = $_POST['code'];
$dynamicArray = [];
foreach ($Optionsclass->get_options() as $key => $value)
{
if ($value['id'] == $code)
{
$dynamicArray =
[
$i =>
[
'id' => $key,
'name' => $value['options']
]
];
$i++;
}
}
echo json_encode($dynamicArray);
You dont need to have the $i stuff that is adding another level to your array that you dont want.
$code = $_POST['code'];
$dynamicArray = [];
foreach ($Optionsclass->get_options() as $key => $value)
{
if ($value['id'] == $code)
{
$dynamicArray[] = ['id' => $key, 'name' => $value['options'];
}
}
echo json_encode($dynamicArray);
You are creating a new dynamic array at each iteration:
$dynamicArray =
[
$i =>
[
'id' => $key,
'name' => $value['options']
]
];
Instead, declare $dynamicArray = []; above the foreach, and then use:
array_push($dynamicArray, [ 'id' => $key, 'name' => $value['options']);
inside the array.
How can i merge array with the same value?
I have three array which are $participants, $conferance_participants and $contacts
i want to compare values with this three array and merge
for example :
if $participants['calleridnum'] == $conferance_participants['uid'] == $contacts['name']
i want the output to be like this :
Array
(
[0] => Array
(
[calleridnum] => 1
[test] => yay
[uid] => 1
[channel] => deze
[name] => 1
[limit] => 1
)
)
this is my code so far:
<?php
$participants = [
[ 'calleridnum' => 1,
'test' => 'yay'
]
];
$conferance_participants = [
[ 'uid' => 1,
'test' => 'yay2',
'channel' => 'deze'
]
];
$contacts = [
[ 'name' => 1,
'test' => 'yay2',
'limit' => 1
]
];
foreach ($participants as $participant=>$p) {
foreach ($conferance_participants as $conferance_participant=>$c) {
foreach ($contacts as $contact=>$cs) {
if (($p['calleridnum'] == $c['uid']) && ($c['uid'] == $cs['name'])) {
foreach ( $c as $key=>$val ) {
if (!isset($p[$key])) {
$participants[$participant][$key] = $val;
}
}
}
}
}
}
print_r( $participants );
?>
Try to call array_merge() , but you still have to consider the different values with the same key (eg. the values of key 'test' )
if (($p['calleridnum'] == $c['uid']) && ($p['uid'] == $c['name'])) {
$participants[$participant] = array_merge(
$participants[$participant],
$conferance_participants[$conferance_participant],
$contacts[$contact]
);
}