<?php
$nullvar = null;
$nullstr = '';
$notnull = 'foo';
$unset = 'something';
unset($unset);
$results = array( '<h1>Results</h1>'
, '<br/>$nullvar = '
, var_dump(isset($nullvar), true)
, '<br/> $nullstr = '
, var_dump(isset($nullstr), true)
, '<br/>$notnull = '
, var_dump(isset($notnull), true)
, '<br/>$unset = '
, var_dump(isset($unset), true)
);
echo impode(' ',$results);
preferences:
41.23 ms | 402 KiB | 5 Q