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<?php class Foo { function __sleep() { return ['lookMaIDoNotExist']; } } var_dump(serialize(new Foo));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Warning: serialize(): "lookMaIDoNotExist" returned as member variable from __sleep() but does not exist in /in/h5OM8 on line 8 string(14) "O:3:"Foo":0:{}"
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 Warning: serialize(): "lookMaIDoNotExist" returned as member variable from __sleep() but does not exist in /in/h5OM8 on line 8 string(14) "O:3:"Foo":0:{}"
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.3.33, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: serialize(): "lookMaIDoNotExist" returned as member variable from __sleep() but does not exist in /in/h5OM8 on line 8 string(41) "O:3:"Foo":1:{s:17:"lookMaIDoNotExist";N;}"
Output for 7.3.32, 7.4.26
string(41) "O:3:"Foo":1:{s:17:"lookMaIDoNotExist";N;}"

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