PHP 20

empty Unset Undef Null

Guest on 12th May 2022 01:11:27 AM

<?php
$unset_var = 10;
unset($unset_var);
$variation_array = array(
'unset var' => @$unset_var,
'undefined var' => @$undefined_var,
'empty string DQ' => "",
'empty string SQ' => '',
'uppercase NULL' => NULL,
'lowercase null' => null,
);
?>

Raw Paste

<?php $unset_var = 10; unset($unset_var); $variation_array = array( 'unset var' => @$unset_var, 'undefined var' => @$undefined_var, 'empty string DQ' => "", 'empty string SQ' => '', 'uppercase NULL' => NULL, 'lowercase null' => null, ); ?>

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