3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function a(&$a) { $a++; } a($a = new DateTime); echo $a;
Output for 7.1.0 - 7.2.6
Notice: Only variables should be passed by reference in /in/g0IbZ on line 6 Recoverable fatal error: Object of class DateTime could not be converted to string in /in/g0IbZ on line 8
Process exited with code 255.
Output for 7.0.7 - 7.0.20
Notice: Only variables should be passed by reference in /in/g0IbZ on line 6 Catchable fatal error: Object of class DateTime could not be converted to string in /in/g0IbZ on line 8
Process exited with code 255.
Output for 7.0.0 - 7.0.6
Catchable fatal error: Object of class DateTime could not be converted to string in /in/g0IbZ on line 8
Process exited with code 255.
Output for 5.2.0 - 5.6.28
Strict Standards: Only variables should be passed by reference in /in/g0IbZ on line 6 Catchable fatal error: Object of class DateTime could not be converted to string in /in/g0IbZ on line 8
Process exited with code 255.
Output for 5.0.0 - 5.1.6
Fatal error: Class 'DateTime' not found in /in/g0IbZ on line 6
Process exited with code 255.
Output for 4.3.2 - 4.4.9
Fatal error: Cannot instantiate non-existent class: datetime in /in/g0IbZ on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: datetime in /in/g0IbZ on line 6