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run code in 150+ php & hhvm versions
Bugs & Features
<?php $name = sys_get_temp_dir() . '/agfsfgretwegfsdbvxbvxfgsde' . rand(1,19283); mkdir($name);
Output for 5.2.1 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.0.0 - 5.2.0
Fatal error: Call to undefined function sys_get_temp_dir() in /in/86q1T on line 2
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: sys_get_temp_dir() in /in/86q1T on line 2
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: sys_get_temp_dir() in /in/86q1T on line 2
Process exited with code 255.
Output for 4.3.1
Fatal error: Call to undefined function: sys_get_temp_dir() in /in/86q1T on line 2
Output for 4.3.0
Fatal error: Call to undefined function: sys_get_temp_dir() in /in/iVrL0 on line 2