3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $string = <<< "STR" foo bar __level [ $save = 123, Info = '1234' ] {Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.} STR; $string = preg_replace("/(?=\R)\R+(?=.*\R{)/s", '', $string); print_r($string);
Output for 7.0.0 - 7.1.0
Notice: Undefined variable: save in /in/k7l1U on line 4 foo bar __level [ = 123,Info = '1234'] {Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.}
Output for 5.3.0 - 5.6.28
Notice: Undefined variable: save in /in/k7l1U on line 14 foo bar __level [ = 123,Info = '1234'] {Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.}
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_SL in /in/k7l1U on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_SL in /in/k7l1U on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/k7l1U on line 2
Process exited with code 255.