<?php $post = []; //without casting $post['a'] = '1'; $a = $post['a'] ?? 0; var_dump($a); $post['a'] = '1'; $a = $post['a'] ?? false; var_dump($a); //with casting $post['a'] = '1'; $a = (int)$post['a'] ?? 0; var_dump($a); $post['a'] = '1'; $a = (bool)$post['a'] ?? false; var_dump($a);
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