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run code in 150+ php & hhvm versions
Bugs & Features
<?php class A { private $bObj; public function __construct() { $this->bObj = new B($this); } } class B { private $owner; public function __construct($owner) { $this->owner = $owner; } } var_dump(memory_get_usage()); $aObj = new A(); var_dump(memory_get_usage()); unset($aObj); var_dump(memory_get_usage()); // memory uncleared!!!
Output for 7.1.0
int(349200) int(349344) int(349344)
Output for 7.0.0 - 7.0.14
int(349208) int(349352) int(349352)
Output for hhvm-3.10.0 - 3.12.0
int(2097152) int(2097152) int(2097152)
Output for 5.6.0 - 5.6.28
int(222536) int(223008) int(222920)
Output for 5.5.0 - 5.5.38
int(222520) int(222976) int(222888)
Output for 5.4.0 - 5.4.45
int(223024) int(223480) int(223392)
Output for 5.3.11 - 5.3.29
int(626488) int(627320) int(627224)
Output for 5.3.0 - 5.3.10
int(626184) int(627016) int(626920)
Output for 5.2.10 - 5.2.17
int(84072) int(85224) int(85128)
Output for 5.2.7 - 5.2.9
int(85160) int(86280) int(86320)
Output for 5.2.3 - 5.2.6
int(85480) int(86600) int(86640)
Output for 5.2.2
int(83376) int(84496) int(84536)
Output for 5.2.1
int(83280) int(84496) int(84536)
Output for 5.0.0 - 5.0.5, 5.1.1 - 5.2.0
Fatal error: Call to undefined function memory_get_usage() in /in/IlGFo on line 22
Process exited with code 255.
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/IlGFo on line 27
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/IlGFo on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/IlGFo on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/IlGFo on line 5
Process exited with code 255.