<?php
error_reporting( E_ALL );
$in = array();
$foo = 'f1';
$bar = 'b1';
if ( ! isset( $in[$foo][$bar] ) ) {
$in[$foo][$bar] = array();
}
print_r( $in );
$ob = new stdClass();
if ( ! isset( $ob->$foo->$bar ) ) {
$ob->$foo->$bar = array();
}
print_r( $ob );
- Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
- Array
(
[f1] => Array
(
[b1] => Array
(
)
)
)
Fatal error: Uncaught Error: Attempt to assign property "b1" on null in /in/g4uvN:15
Stack trace:
#0 {main}
thrown in /in/g4uvN on line 15
Process exited with code 255. - Output for 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, 7.2.17 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
- Array
(
[f1] => Array
(
[b1] => Array
(
)
)
)
Warning: Creating default object from empty value in /in/g4uvN on line 15
stdClass Object
(
[f1] => stdClass Object
(
[b1] => Array
(
)
)
)
- 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
- Array
(
[f1] => Array
(
[b1] => Array
(
)
)
)
stdClass Object
(
[f1] => stdClass Object
(
[b1] => Array
(
)
)
)
preferences:
262.51 ms | 403 KiB | 378 Q