<?php
$nullvar = array(
0 => array('a' => array('r' => null)),
1 => array('a' => array('r' => null)),
);
if (isset($nullvar[0]['a']['r'])) {
echo "set";
} else {
echo "not set";
}
if (is_null($nullvar[0]['a']['r'])) {
echo "\nnull";
} else {
echo "\nnot null";
}
- 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, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.6 - 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 - 8.3.7
- not set
null
preferences:
297.78 ms | 406 KiB | 388 Q