3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo(){ $foo = null; $foo?->bar(); // ok } function bar(){ $foo?->bar(); // undefined variable or something } foo(); bar();
Output for 8.1.23 - 8.1.28, 8.2.10 - 8.2.19, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7
Warning: Undefined variable $foo in /in/j5c8L on line 9
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: Undefined variable $foo in /in/j5c8L on line 9
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.21, 7.4.0 - 7.4.9
Parse error: syntax error, unexpected '->' (T_OBJECT_OPERATOR) in /in/j5c8L on line 5
Process exited with code 255.
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