3v4l.org

run code in 300+ PHP versions simultaneously
<?php function doit($v) { var_dump($v); switch ($v) { case 0: echo "zero"; break; case null: echo "null"; break; case false: echo "false"; break; case '': echo "''"; break; } echo "\n\n"; } foreach (array(0, null, false, '', 'a string') as $v) doit($v);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
int(0) zero NULL zero bool(false) zero string(0) "" null string(8) "a string"
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) zero NULL zero bool(false) zero string(0) "" null string(8) "a string"
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 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 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
int(0) zero NULL zero bool(false) zero string(0) "" zero string(8) "a string" zero
preferences:
271.87 ms | 404 KiB | 422 Q