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Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
<?php
$filters = array("cata" => ['culo', 'moco'], "catb" => ['pura','falopa'], "catc" => [], "catd" => []);
// filter the data
//$data = array_filter($data, fn ($value) => $value['content'] === 'World');
// map the data
//$data = array_map(fn ($value) => ['content' => $value['content']], $data);
// reset indexes
//$data = array_values($data);
$datala = array_filter($filters, fn($e) => !empty($e));
$atala = array_sum(array_map(fn($e) => !empty($e), $filters));
print_r($datala);
print_r($atala);