3v4l.org

run code in 500+ PHP versions simultaneously
<?php foreach ( [ '"a" <=> "b"' => "a" <=> "b", '"a11" <=> "a2"' => "a11" <=> "a2", ' "11" <=> "2"' => "11" <=> "2", ' 11 <=> 2' => 11 <=> 2, ] as $what => $value ) { echo "$what: "; var_dump($value); }
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.4, 8.3.6 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
"a" <=> "b": int(-1) "a11" <=> "a2": int(-1) "11" <=> "2": int(1) 11 <=> 2: 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 "a" <=> "b": int(-1) "a11" <=> "a2": int(-1) "11" <=> "2": int(1) 11 <=> 2: int(1)
preferences:
31.8 ms | 1144 KiB | 10 Q