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<?php //código com o problema function &olaMundoRef(){ return 'Ola mundo'. PHP_EOL; } //código sem problema function &olaMundo(){ $x = 'Ola mundo'; return $x; } echo olaMundoRef(); echo olaMundo();
Output for 4.4.0 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 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 - 8.3.4, 8.3.6
Notice: Only variable references should be returned by reference in /in/ZbXSD on line 4 Ola mundo Ola mundo
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 Notice: Only variable references should be returned by reference in /in/ZbXSD on line 4 Ola mundo Ola mundo
Output for 4.3.10 - 4.3.11, 7.3.32 - 7.3.33
Ola mundo Ola mundo
Output for 5.0.2 - 5.0.5
Strict Standards: Only variable references should be returned by reference in /in/ZbXSD on line 4 Ola mundo Ola mundo
Output for 5.0.0 - 5.0.1
Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/ZbXSD on line 4 Strict Standards: Only variable references should be returned by reference in /in/ZbXSD on line 4 Ola mundoPHP_EOLOla mundo
Output for 4.3.0 - 4.3.9
Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/ZbXSD on line 4 Ola mundoPHP_EOLOla mundo

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