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<?php $obj = new stdClass(); $obj->{123} = "foo"; $obj->{'456'} = "bar"; $arr = (array)$obj; var_dump($arr); echo $arr["123"]; echo $arr["456"];
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 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array(2) { [123]=> string(3) "foo" [456]=> string(3) "bar" } foobar
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array(2) { [123]=> string(3) "foo" [456]=> string(3) "bar" } foobar
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
array(2) { ["123"]=> string(3) "foo" ["456"]=> string(3) "bar" } Notice: Undefined offset: 123 in /in/1sj0v on line 10 Notice: Undefined offset: 456 in /in/1sj0v on line 11
Output for 5.3.0 - 5.3.29
array(2) { ["123"]=> string(3) "foo" ["456"]=> string(3) "bar" } Notice: Undefined index: 123 in /in/1sj0v on line 10 Notice: Undefined index: 456 in /in/1sj0v on line 11
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
array(2) { ["123"]=> string(3) "foo" ["456"]=> string(3) "bar" } Notice: Undefined index: 123 in /in/1sj0v on line 10 Notice: Undefined index: 456 in /in/1sj0v on line 11
Output for 4.3.3 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Property name must be a string in /in/1sj0v on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.2

Process exited with code 139.

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