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Get keys from multidimentional array by value


Get keys from multidimentional array by value

By : Johan
Date : November 20 2020, 11:01 PM
will be helpful for those in need One way would be to filter it first. Now your result is structured like $list but it only contains elements with the needed book:
code :
$find   = 'Book 2';
$result = array_filter($list, function($v) use($find) {
                                  return in_array($find, $v['books_on_hand']);  
                              });
$find   = 'Book 2';
$result = array_map(function($v) use($find) {
                       if(in_array($find, $v['books_on_hand'])) {
                           return $v['personal_id'];
                       }
                    }, $list);
Array
(
    [person1] => 1
    [person2] => 2
    [person3] => 3
)


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Best way to sort multidimentional array by keys in php

Best way to sort multidimentional array by keys in php


By : Tim
Date : March 29 2020, 07:55 AM
Does that help You could try this. One could make it more general using recrusive function, but I think this is good enough in your case.
code :
foreach ($years as &$months){
  foreach ($months as &$days){
    ksort($days);
  }
  ksort($months);
}
ksort($years);
How to get first keys on multidimentional array

How to get first keys on multidimentional array


By : Umarani
Date : March 29 2020, 07:55 AM
wish help you to fix your issue
code :
foreach($data as $key=>$val){
  echo $key;
}
how to remove the keys in multidimentional array

how to remove the keys in multidimentional array


By : user2369220
Date : March 29 2020, 07:55 AM
I wish this helpful for you Use array_values:
code :
$array = array_values($array);
How to set keys in a multidimentional array in php

How to set keys in a multidimentional array in php


By : nimby
Date : March 29 2020, 07:55 AM
To fix this issue I have doubt in php i want to set an associative array for which i have the keys ,as well as values. i have an array $headers and a mutidimentional array $data as follows:
code :
$result = array();
foreach($data as $key => $val){
    $temp = array(); 
    foreach($val as $k => $v){
       $temp[$header[$k]] = $v; 
    }
    $result[] = $temp;
}
How to get value of all same keys of multidimentional array in php

How to get value of all same keys of multidimentional array in php


By : user3288106
Date : March 29 2020, 07:55 AM
With these it helps Basically i want to loop through a multidimensional associative array to get a simple indexed array , You just have to travel recursively to collect all user IDs as below:
code :
<?php

function collectUserIDs($data,&$result){
    foreach($data as $current_data){
        $result[] = $current_data['user_id'];
        collectUserIDs($current_data['children'],$result);
    }
}

$result = [];
collectUserIDs($data,$result);

print_r($result);
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