3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x=''; for ($i=0; $i<128*1024; $i++) { $x .= str_repeat(' ', 1024); } echo memory_get_usage();
Output for 7.0.0 - 7.1.0
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 31457312 bytes) in /in/dQU3N on line 6
Process exited with code 255.
Output for hhvm-3.12.0
mallctl opt.prof: No such file or directory (2) Fatal error: request has exceeded memory limit in /in/dQU3N on line 4
Process exited with code 255.
Output for hhvm-3.10.0
Fatal error: request has exceeded memory limit in /in/dQU3N on line 4
Process exited with code 255.
Output for 5.2.2 - 5.2.17, 5.4.0 - 5.6.28
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 66846721 bytes) in /in/dQU3N on line 6
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 66322433 bytes) in /in/dQU3N on line 6
Process exited with code 255.
Output for 5.2.1
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 66846721 bytes) in /in/dQU3N on line 6 zend_mm_heap corrupted
Process exited with code 1.
Output for 5.2.0

Process exited with code 137.
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function memory_get_usage() in /in/dQU3N on line 9
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: memory_get_usage() in /in/dQU3N on line 9
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: memory_get_usage() in /in/dQU3N on line 9
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: memory_get_usage() in /in/dQU3N on line 9