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<?php class MyCache { private $cache = []; public function has($key) { echo "\nget: " . json_encode($key); return array_key_exists( $key, $this->cache ); } public function set($key, $val) { echo "\nset: " . json_encode($key); $this->cache[$key] = $val; } } $mc = new MyCache(); $mc->has(['x']); $mc->has([]); $mc->has(false); $mc->has(true); $mc->has(''); $mc->has(0); echo "\n"; $mc->set(['x'], 1); $mc->set([], 1); $mc->set(false, 1); $mc->set(true, 1); $mc->set('', 1); $mc->set(0, 1);
Output for 8.3.0 - 8.3.4, 8.3.6 - 8.3.9
get: ["x"] Fatal error: Uncaught TypeError: Cannot access offset of type array on array in /in/3Z0f7:8 Stack trace: #0 /in/3Z0f7(18): MyCache->has(Array) #1 {main} thrown in /in/3Z0f7 on line 8
Process exited with code 255.
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 get: ["x"] Fatal error: Uncaught TypeError: Cannot access offset of type array on array in /in/3Z0f7:8 Stack trace: #0 /in/3Z0f7(18): MyCache->has(Array) #1 {main} thrown in /in/3Z0f7 on line 8
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.29, 8.2.0 - 8.2.21
get: ["x"] Fatal error: Uncaught TypeError: Illegal offset type in /in/3Z0f7:8 Stack trace: #0 /in/3Z0f7(18): MyCache->has(Array) #1 {main} thrown in /in/3Z0f7 on line 8
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
get: ["x"] Warning: array_key_exists(): The first argument should be either a string or an integer in /in/3Z0f7 on line 8 get: [] Warning: array_key_exists(): The first argument should be either a string or an integer in /in/3Z0f7 on line 8 get: false Warning: array_key_exists(): The first argument should be either a string or an integer in /in/3Z0f7 on line 8 get: true Warning: array_key_exists(): The first argument should be either a string or an integer in /in/3Z0f7 on line 8 get: "" get: 0 set: ["x"] Warning: Illegal offset type in /in/3Z0f7 on line 13 set: [] Warning: Illegal offset type in /in/3Z0f7 on line 13 set: false set: true set: "" set: 0
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/3Z0f7 on line 4
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/3Z0f7 on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/3Z0f7 on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/3Z0f7 on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/3Z0f7 on line 4
Process exited with code 255.

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