3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo memory_get_peak_usage(true);
Output for 7.0.0 - 7.3.0rc4
2097152
Output for 5.2.1 - 5.2.17, 5.4.0 - 5.6.22
262144
Output for 5.3.0 - 5.3.29
786432
Output for 5.0.0 - 5.2.0
Fatal error: Call to undefined function memory_get_peak_usage() in /in/O9M3U on line 1
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: memory_get_peak_usage() in /in/O9M3U on line 1
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: memory_get_peak_usage() in /in/O9M3U on line 1
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: memory_get_peak_usage() in /in/O9M3U on line 1