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<?php function incre() { return [ 1 => null, 2 => null, 3 => 1, ]; } $a = incre()[0] ?? 0; var_dump($a); $b = incre()[1] ?? 0; var_dump($b); $c = incre()[3] ?? 0; var_dump($c);
Output for 7.1.0 - 7.1.33, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
int(0) int(0) int(1)
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 int(0) int(0) int(1)
Output for 5.6.38
Parse error: syntax error, unexpected '?' in /in/cFjLf on line 11
Process exited with code 255.
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149.64 ms | 401 KiB | 209 Q