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run code in 300+ PHP versions simultaneously
<?php $foo = true; var_dump($foo ?: $bar); var_dump($foo ?? $bar); var_dump($bar ?: $foo); var_dump($bar ?? $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
bool(true) bool(true) Warning: Undefined variable $bar in /in/fr367 on line 8 bool(true) bool(true)
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 bool(true) bool(true) Warning: Undefined variable $bar in /in/fr367 on line 8 bool(true) bool(true)
Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
bool(true) bool(true) Notice: Undefined variable: bar in /in/fr367 on line 8 bool(true) bool(true)
Output for 7.3.32 - 7.3.33
bool(true) bool(true) bool(true) bool(true)
Output for 5.6.38
Parse error: syntax error, unexpected '?' in /in/fr367 on line 6
Process exited with code 255.
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