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run code in 200+ php & hhvm versions
Bugs & Features
<?php $pok =''; if (isset($_REQUEST['co']) && (!(($pok!='') || ($pok!=' ')))){ echo '<br>neni prazdny<br>'; } else { echo '<br>je prazdny<br>'; }
based on eg3Sb
Output for 4.3.0 - 7.1.7
<br>je prazdny<br>