3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump( memory_get_usage(), memory_get_peak_usage() );
Output for 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
int(385976) int(421288)
Output for 8.1.0 - 8.1.27
int(386288) int(421592)
preferences:
49.21 ms | 406 KiB | 5 Q