<?php
$lala;
var_dump(
isset($lala),
null == $lala,
null === $lala
);
- Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- Warning: Undefined variable $lala in /in/lMll5 on line 7
Warning: Undefined variable $lala in /in/lMll5 on line 8
bool(false)
bool(true)
bool(true)
- Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
- Notice: Undefined variable: lala in /in/lMll5 on line 7
Notice: Undefined variable: lala in /in/lMll5 on line 8
bool(false)
bool(true)
bool(true)
- 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, 7.3.32 - 7.3.33, 7.4.26
- bool(false)
bool(true)
bool(true)
- Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
- Notice: Undefined variable: lala in /in/lMll5 on line 7
Notice: Undefined variable: lala in /in/lMll5 on line 9
bool(false)
bool(true)
bool(true)
preferences:
291.55 ms | 402 KiB | 459 Q