- var_dump: documentation ( source)
- phpversion: documentation ( source)
- filter_var: documentation ( source)
<?php
var_dump(phpversion());
function teste ($arg) {
$var = function() use ($arg) {
if(filter_var($arg, FILTER_VALIDATE_INT)){
throw new Exception("It\'s not a INT\n");
}
if($arg % 2 == 0) return 'PAR';
return 'IMPAR';
};
return $var;
}
echo teste('a');
echo teste(27);
echo teste(18);