- Output for 7.1.25 - 7.1.32, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.16, 8.4.1 - 8.4.3
- bool(true)
<?php
/**
* Check if variable is an associative array.
*
* @param array|mixed $var
* @return bool
*/
$b=array('id'=>1,'user'=>1);
function is_associative_array($var): bool
{
if (!is_array($var)) {
return false;
}
$keys = array_keys($var);
return ($keys !== array_keys($keys));
}
var_dump(is_associative_array($b));