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<?php $arr = array('4' => 'foo', '4x' => 'bar'); $obj = (object)$arr; print_r($obj); print $obj->{4}; print $obj->{'4'};
Output for 7.2.0 - 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
stdClass Object ( [4] => foo [4x] => bar ) foofoo
Output for 5.2.6 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
stdClass Object ( [4] => foo [4x] => bar ) Notice: Undefined property: stdClass::$4 in /in/rsfIv on line 8 Notice: Undefined property: stdClass::$4 in /in/rsfIv on line 9
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.5
stdClass Object ( [4] => foo [4x] => bar ) Notice: Undefined property: stdClass::$4 in /in/rsfIv on line 8 Notice: Undefined property: stdClass::$4 in /in/rsfIv on line 9
Output for 4.3.3 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Property name must be a string in /in/rsfIv on line 8
Process exited with code 255.
Output for 4.3.0 - 4.3.2
stdClass Object ( [4] => foo [4x] => bar )
Process exited with code 139.

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