3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $str = str_repeat('1', 1024 * 1024); var_dump(memory_get_usage()); $str2 = (string)$str; var_dump(memory_get_usage());
based on qJlu2
Output for 7.0.0 - 7.1.0
int(1398768) int(1398800)
Output for hhvm-3.10.0 - 3.12.0
int(2097152) int(2097152)
Output for 5.6.7 - 5.6.28
int(1265640) int(2314424)
Output for 5.5.24 - 5.5.35
int(1265640) int(2314416)
Output for 5.4.10 - 5.4.45
int(1266160) int(2314928)
Output for 5.4.0 - 5.4.9
int(1265632) int(2314400)
Output for 5.3.11 - 5.3.29
int(1668688) int(2717464)
Output for 5.3.0 - 5.3.10
int(1668384) int(2717160)
Output for 5.2.10 - 5.2.17
int(1126320) int(2175088)
Output for 5.2.7 - 5.2.9
int(1126792) int(2175568)
Output for 5.2.3 - 5.2.6
int(1127112) int(2175888)
Output for 5.2.1 - 5.2.2
int(1125008) int(2173704)
Output for 5.0.0 - 5.2.0
Fatal error: Call to undefined function memory_get_usage() in /in/jnCog on line 4
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: memory_get_usage() in /in/jnCog on line 4
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: memory_get_usage() in /in/jnCog on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: memory_get_usage() in /in/jnCog on line 4