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<?php class Foo { private $items; function __construct($a) { $this->items = []; $this->items['params'] = []; $this->items['a'] = $a; } function __get($name) { if ($name === 'a') { return $this->items['a']; } return null; } function __isset($a) { return isset($this->items->params[$a]); } function bar() { if (isset($this->a['xyz'])) { return 'yes'; } return 'no'; } function baz() { $tmp = $this->a; if (isset($tmp['xyz'])) { return 'yes'; } return 'no'; } } $f = new Foo(['xyz' => true]); var_dump($f->bar()); var_dump($f->baz());
Output for 7.0.6 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.27, 7.4.0 - 7.4.15, 8.0.0 - 8.0.3
string(2) "no" string(3) "yes"
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.37, 5.6.0 - 5.6.28, 7.0.0 - 7.0.5
string(3) "yes" string(3) "yes"
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/r9QFk on line 8
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/r9QFk on line 8
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/r9QFk on line 5
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/r9QFk on line 5
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/r9QFk on line 5
Process exited with code 255.