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<?php class MyEmpty { public $state; public function check(&$var) { $this->state = empty($var); return $this; } public function _or(&$var) { if($this->state) return $this; $this->state = $state || empty($var); return $this; } public function _and(&$var) { if(!$this->state) return $this; $this->state = $state && empty($var); return $this; } } $empty = new MyEmpty; $var = 'some'; var_dump($empty->check($foo['bar'])->_or($var)->state); var_dump($empty->check($foo['bar'])->_and($var)->state);
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
bool(true) Warning: Undefined variable $state in /in/C31S6 on line 22 bool(false)
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 bool(true) Warning: Undefined variable $state in /in/C31S6 on line 22 bool(false)
Output for 5.0.4 - 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 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
bool(true) Notice: Undefined variable: state in /in/C31S6 on line 22 bool(false)
Output for 7.3.32 - 7.3.33
bool(true) bool(false)
Output for 5.0.0 - 5.0.3
bool(true) Notice: Undefined variable: state in /in/C31S6 on line 22 bool(false)
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/C31S6 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/C31S6 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/C31S6 on line 4
Process exited with code 255.
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