3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class zyf{ public $a=6; public $b; function zyf(){ echo $this->a; //可以输出 6 如果替换为echo $a ,将不显示任何结果,因为没有具体对象 } } $xin = new zyf(); ?>
Output for 7.0.0 - 7.1.0
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; zyf has a deprecated constructor in /in/7VAbN on line 2 6
Output for 5.0.0 - 5.6.28, hhvm-3.10.0 - 3.12.0
6
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/7VAbN on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/7VAbN on line 3
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/7VAbN on line 3
Process exited with code 255.