<?php
$t = array();
$t['aa']['b'] = 'aaa';
print (isset($t['aa']['b']));
print (isset($t['aa']['bb']));
print (null == $t['aa']['b']);
print (null == $t['aa']['bb']);
- Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- 1
Warning: Undefined array key "bb" in /in/9e3oZ on line 9
1
- Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.26, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
- 1
Notice: Undefined index: bb in /in/9e3oZ on line 9
1
- Output for 7.3.32 - 7.3.33
- 11
- 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
- 1
Notice: Undefined index: bb in /in/9e3oZ on line 9
1
preferences:
214.2 ms | 402 KiB | 371 Q