<?php
$nullvar = null;
$nullstr = '';
$notnull = 'foo';
$unset = 'something';
unset($unset);
function quiet_dump($v)
{
ob_start();
echo '<pre>';
var_dump($v);
echo '</pre>';
return ob_get_clean();
}
$results = array( '==Results=='
, '$nullvar = '
, quiet_dump(isset($nullvar), true)
, '$nullstr = '
, quiet_dump(isset($nullstr), true)
, '$notnull = '
, quiet_dump(isset($notnull), true)
, '$unset = '
, quiet_dump(isset($unset), true)
);
echo implode("\n",$results);
- Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- ==Results==
$nullvar =
<pre>bool(false)
</pre>
$nullstr =
<pre>bool(true)
</pre>
$notnull =
<pre>bool(true)
</pre>
$unset =
<pre>bool(false)
</pre>
preferences:
235.41 ms | 406 KiB | 357 Q