3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { private $bar = 'baz'; private $xyz = 'www'; } $f = new Foo(); var_dump(key($f)); var_dump(current($f)); var_dump(next($f)); var_dump(key($f)); var_dump(current($f),"---"); class Foo1 { protected $bar = 'baz'; protected $xyz = 'www'; } $f = new Foo1(); var_dump(key($f)); var_dump(current($f)); var_dump(next($f)); var_dump(key($f)); var_dump(current($f),"---"); class Foo2 { public $bar = 'baz'; public $xyz = 'www'; } $f = new Foo2(); var_dump(key($f)); var_dump(current($f)); var_dump(next($f)); var_dump(key($f)); var_dump(current($f),"---");
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Deprecated: key(): Calling key() on an object is deprecated in /in/Z0N6k on line 10 string(8) "Foobar" Deprecated: current(): Calling current() on an object is deprecated in /in/Z0N6k on line 11 string(3) "baz" Deprecated: next(): Calling next() on an object is deprecated in /in/Z0N6k on line 12 string(3) "www" Deprecated: key(): Calling key() on an object is deprecated in /in/Z0N6k on line 13 string(8) "Fooxyz" Deprecated: current(): Calling current() on an object is deprecated in /in/Z0N6k on line 14 string(3) "www" string(3) "---" Deprecated: key(): Calling key() on an object is deprecated in /in/Z0N6k on line 23 string(6) "*bar" Deprecated: current(): Calling current() on an object is deprecated in /in/Z0N6k on line 24 string(3) "baz" Deprecated: next(): Calling next() on an object is deprecated in /in/Z0N6k on line 25 string(3) "www" Deprecated: key(): Calling key() on an object is deprecated in /in/Z0N6k on line 26 string(6) "*xyz" Deprecated: current(): Calling current() on an object is deprecated in /in/Z0N6k on line 27 string(3) "www" string(3) "---" Deprecated: key(): Calling key() on an object is deprecated in /in/Z0N6k on line 36 string(3) "bar" Deprecated: current(): Calling current() on an object is deprecated in /in/Z0N6k on line 37 string(3) "baz" Deprecated: next(): Calling next() on an object is deprecated in /in/Z0N6k on line 38 string(3) "www" Deprecated: key(): Calling key() on an object is deprecated in /in/Z0N6k on line 39 string(3) "xyz" Deprecated: current(): Calling current() on an object is deprecated in /in/Z0N6k on line 40 string(3) "www" string(3) "---"
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 Deprecated: key(): Calling key() on an object is deprecated in /in/Z0N6k on line 10 string(8) "Foobar" Deprecated: current(): Calling current() on an object is deprecated in /in/Z0N6k on line 11 string(3) "baz" Deprecated: next(): Calling next() on an object is deprecated in /in/Z0N6k on line 12 string(3) "www" Deprecated: key(): Calling key() on an object is deprecated in /in/Z0N6k on line 13 string(8) "Fooxyz" Deprecated: current(): Calling current() on an object is deprecated in /in/Z0N6k on line 14 string(3) "www" string(3) "---" Deprecated: key(): Calling key() on an object is deprecated in /in/Z0N6k on line 23 string(6) "*bar" Deprecated: current(): Calling current() on an object is deprecated in /in/Z0N6k on line 24 string(3) "baz" Deprecated: next(): Calling next() on an object is deprecated in /in/Z0N6k on line 25 string(3) "www" Deprecated: key(): Calling key() on an object is deprecated in /in/Z0N6k on line 26 string(6) "*xyz" Deprecated: current(): Calling current() on an object is deprecated in /in/Z0N6k on line 27 string(3) "www" string(3) "---" Deprecated: key(): Calling key() on an object is deprecated in /in/Z0N6k on line 36 string(3) "bar" Deprecated: current(): Calling current() on an object is deprecated in /in/Z0N6k on line 37 string(3) "baz" Deprecated: next(): Calling next() on an object is deprecated in /in/Z0N6k on line 38 string(3) "www" Deprecated: key(): Calling key() on an object is deprecated in /in/Z0N6k on line 39 string(3) "xyz" Deprecated: current(): Calling current() on an object is deprecated in /in/Z0N6k on line 40 string(3) "www" string(3) "---"
Output for 7.1.26 - 7.1.33, 7.2.17 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
string(8) "Foobar" string(3) "baz" string(3) "www" string(8) "Fooxyz" string(3) "www" string(3) "---" string(6) "*bar" string(3) "baz" string(3) "www" string(6) "*xyz" string(3) "www" string(3) "---" string(3) "bar" string(3) "baz" string(3) "www" string(3) "xyz" string(3) "www" string(3) "---"
preferences:
165 ms | 403 KiB | 164 Q