- var_dump: documentation ( source)
- array_filter: documentation ( source)
- array_keys: documentation ( source)
<?php
function test($array)
{
try
{
return isDictionary($array);
}
catch (Exception $e)
{
//echo $e->getMessage();
return 'error';
}
}
function isDictionary(array $array) {
return !(bool)count(array_filter(array_keys($array), 'is_string'));
}
$arr = null;
var_dump(test($arr));