PHP Count Array Columns

Question

I have this PHP array :

$food = array('fruits' => array('orange', 'banana', 'apple'),
              'veggie' => array('carrot', 'collard', NULL));

if I use this function :

$rows = count($food);

of course the result will be 2, but how to get number of array columns? so, I'm expecting 3 as a value of fruits and veggie columns. even though veggie has NULL.

Solution 1

...I mean, if the columns are always the same, then why should we loop it as many as rows?

If the number of columns is always the same and you have at least one element in your $food array you can just probe the first/current element with current()

$columns = count(current($food));

Solution 2

You can try This: array_map with count.

<?php 
 $food = array('fruits' => array('orange', 'banana', 'apple'),
        'veggie' => array('carrot', 'collard', NULL));
 $typeTotals = array_map("count", $food);
echo "<pre>";
print_r($typeTotals);

OUTPUT:

Array ( [fruits] => 3 [veggie] => 3 )

Solution 3

$food = array('fruits' => array('orange', 'banana', 'apple'),
              'veggie' => array('carrot', 'collard', NULL));
$array = array_map('count', $food);

Solution 4

This approach will create an array of counts, by type:

$rows = [];
foreach ($food as $type => $items) {
    $rows[$type] = count($items);
]

Solution 5

You can try this :

$food = array('fruits' => array('orange', 'banana', 'apple'),
                'veggie' => array('carrot', 'collard', NULL));

        echo count($food['fruits']);

However it would only work if you know the element e.g. 'fruits'.

View more solutions

Comments

[Peyman Mohamadpour]

Possible duplicate of Count elements in each sub array in php

[Saint Robson]

Hi bro, thanks for your answer. but, is there any other ways to count the columns without foreach loop? I mean, if the columns are always the same, then why should we loop it as many as rows?

[Kevin]

i would answer this way also, i'd also add max if the columns are jagged. echo max(array_map('count', $food));, anyway +1

[Suchit kumar]

@Ghost but i guess he is expecting both the keys in output.

[LUISAO]

Thank you @Kevin. It is just what i want to do! Thank you Suchit Kumar!