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<?php $maybeHasAB = ['a value']; $defaultAB = ['a default', 'b default']; [$a, $b] = ($maybeHasAB + $defaultAB); var_dump($a, $b); $a = $maybeHasAB[0] ?? $defaultAB[0]; $b = $maybeHasAB[1] ?? $defaultAB[1]; var_dump($a, $b);
Output for 7.1.25 - 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
string(7) "a value" string(9) "b default" string(7) "a value" string(9) "b default"
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 string(7) "a value" string(9) "b default" string(7) "a value" string(9) "b default"
preferences:
185.34 ms | 402 KiB | 184 Q