3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php gc_disable(); class x { private $value; private $y; public function __construct($value) { $this->value = $value; $this->y = new y(); } } class y { } $array = array(); $objects = array(); for($i = 0; $i < 50000; $i++) { $value = md5('Hallo'); $objects[] = new x($value); $array[] = $value; } var_dump(number_format(memory_get_usage(), 0, ',', '.')) . "\n"; var_dump(number_format(memory_get_usage(true), 0,',','.')) . "\n"; unset($array); unset($objects); unset($value); var_dump(number_format(memory_get_usage(), 0, ',', '.')) . "\n"; var_dump(number_format(memory_get_usage(true), 0,',','.')) . "\n"; $array = array(); $objects = array(); for($i = 0; $i < 50000; $i++) { $value = md5('Hallo'); $objects[] = new x($value); $array[] = $value; } var_dump(number_format(memory_get_usage(), 0, ',', '.')) . "\n"; var_dump(number_format(memory_get_usage(true), 0,',','.')) . "\n"; unset($array); unset($objects); unset($value); var_dump(number_format(memory_get_usage(), 0, ',', '.')) . "\n"; var_dump(number_format(memory_get_usage(true), 0,',','.'));
based on YRpjV
Output for 7.1.0
string(10) "14.800.944" string(10) "16.785.408" string(9) "1.398.320" string(10) "12.582.912" string(10) "14.800.976" string(10) "16.785.408" string(9) "1.398.320" string(10) "12.582.912"
Output for 7.0.0 - 7.0.14
string(10) "14.801.008" string(10) "16.785.408" string(9) "1.398.384" string(10) "12.582.912" string(10) "14.801.040" string(10) "16.785.408" string(9) "1.398.384" string(10) "12.582.912"
Output for hhvm-3.12.0
string(10) "12.582.912" string(9) "9.608.408" string(10) "12.582.912" string(7) "312.248" string(10) "14.680.064" string(9) "9.608.408" string(10) "14.680.064" string(7) "312.248"
Output for hhvm-3.10.0
string(10) "10.485.760" string(9) "9.606.800" string(10) "10.485.760" string(7) "310.640" string(10) "14.680.064" string(9) "9.606.800" string(10) "14.680.064" string(7) "310.640"
Output for 5.6.0 - 5.6.28
string(10) "34.803.168" string(10) "35.651.584" string(9) "8.553.896" string(10) "22.282.240" string(10) "34.819.592" string(10) "35.651.584" string(9) "8.553.896" string(10) "27.262.976"
Output for 5.5.0 - 5.5.38
string(10) "34.803.144" string(10) "35.651.584" string(9) "8.553.864" string(10) "22.020.096" string(10) "34.819.576" string(10) "35.651.584" string(9) "8.553.864" string(10) "27.000.832"
Output for 5.4.10 - 5.4.45
string(10) "34.803.672" string(10) "35.651.584" string(9) "8.554.352" string(10) "22.282.240" string(10) "34.820.072" string(10) "35.651.584" string(9) "8.554.352" string(10) "28.311.552"
Output for 5.4.0 - 5.4.9
string(10) "34.803.608" string(10) "35.651.584" string(9) "8.554.344" string(10) "22.282.240" string(10) "34.819.896" string(10) "35.651.584" string(9) "8.554.344" string(10) "26.738.688"
Output for 5.3.11 - 5.3.29
string(10) "59.215.752" string(10) "60.030.976" string(9) "8.964.736" string(10) "13.631.488" string(10) "59.234.520" string(10) "60.293.120" string(9) "8.964.736" string(10) "13.893.632"
Output for 5.3.0 - 5.3.10
string(10) "59.215.656" string(10) "60.030.976" string(9) "8.964.600" string(10) "13.893.632" string(10) "59.234.536" string(10) "60.293.120" string(9) "8.964.600" string(10) "14.155.776"
Output for 5.0.0 - 5.2.17
Fatal error: Call to undefined function gc_disable() in /in/scKF3 on line 2
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/scKF3 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/scKF3 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/scKF3 on line 5
Process exited with code 255.