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How to add elements in a multi dimensional array


How to add elements in a multi dimensional array

By : user3042938
Date : November 29 2020, 12:01 PM
With these it helps In python any sort of data can be stored into list and dictionaries, there is almost never a need for making multi-dimensional arrays or vectors.
Series->Seasons->Quality->Episodes.
code :


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Slicing a multi-dimensional PHP array across one of its elements

Slicing a multi-dimensional PHP array across one of its elements


By : shesb
Date : March 29 2020, 07:55 AM
may help you . As of June 20th in PHP-5.5 there is a new function array_column
For example:
code :
$records = array(
    array(
        'id' => 2135,
        'first_name' => 'John',
        'last_name' => 'Doe'
    ),
    array(
        'id' => 3245,
        'first_name' => 'Sally',
        'last_name' => 'Smith'
    ),
    array(
        'id' => 5342,
        'first_name' => 'Jane',
        'last_name' => 'Jones'
    ),
    array(
        'id' => 5623,
        'first_name' => 'Peter',
        'last_name' => 'Doe'
    )
);


$firstNames = array_column($records, 'first_name');
print_r($firstNames);
Array
(
    [0] => John
    [1] => Sally
    [2] => Jane
    [3] => Peter
)
get next and previous elements of PHP multi-dimensional array

get next and previous elements of PHP multi-dimensional array


By : Rizky Maulana Prasas
Date : March 29 2020, 07:55 AM
should help you out I have a list in php with the following structure:
code :
$idx = 0;
foreach ($array as $key => $value) {
    if ($value['order'] == $center) {
        $idx = $key; 
        break;
    }
}

$before = $all[$idx - 1];
$current = $all[$idx];
$after = $all[$idx + 1];
How to count and sum elements in a multi-dimensional array?

How to count and sum elements in a multi-dimensional array?


By : user3160349
Date : March 29 2020, 07:55 AM
this one helps. i have a array that returns some numbers. and i want to add those numbers together and also count them.
code :
<?php
$homepage = file_get_contents('http://graph.facebook.com/215844978437619/reviews');
$parsed = json_decode($homepage,true);

$totalRatings = 0;
$totalRated = 0;

foreach ($parsed['data'] as $key => $values){
   $totalRatings += (int) $values['rating'];
   $totalRated++;
}
?>
PHP for removing unwanted elements from multi-dimensional array with reference to a list of wanted elements

PHP for removing unwanted elements from multi-dimensional array with reference to a list of wanted elements


By : user3553573
Date : March 29 2020, 07:55 AM
I wish this helpful for you The problem with your existing code is that when you try an unset() the value, you are using the actual value rather than the index to remove the item - which won't work.
To fix the original code -
code :
foreach ($csv as $key => $product){
    foreach ($product as $column => $data_col){
        if(!in_array($column,$wanted_data_cols)){
            unset($csv[$key][$column]);
        }
    }
}
$wanted_data_cols = array_flip($wanted_data_cols);
foreach ($csv as $key => $product){
    $csv[$key] = array_intersect_key($product, $wanted_data_cols);
}
Use map on each elements of multi dimensional array?

Use map on each elements of multi dimensional array?


By : Valentin Maciuc
Date : March 29 2020, 07:55 AM
it should still fix some issue Use boolean indexing:
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