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run code in 300+ PHP versions simultaneously
<?php gc_enable(); class x { public $value; public $y; public function __construct($value) { $this->value = $value; $this->y = new y(); } } class y { } $array = array(); for($i = 0; $i < 50000; $i++) { $array[] = new x(md5('Hallo')); } var_dump(number_format(memory_get_usage(), 0, ',', '.')) . "\n"; var_dump(number_format(memory_get_usage(true), 0,',','.')) . "\n"; unset($array); var_dump(gc_collect_cycles()) . "\n"; var_dump(number_format(memory_get_usage(), 0, ',', '.')) . "\n"; var_dump(number_format(memory_get_usage(true), 0,',','.')) . "\n";
Output for 7.2.0
string(10) "12.730.040" string(10) "14.684.160" int(0) string(9) "1.428.744" string(10) "12.582.912"
Output for 7.1.0, 7.1.7
string(10) "12.693.600" string(10) "14.684.160" int(0) string(9) "1.392.304" string(10) "12.582.912"
Output for 7.1.5 - 7.1.6
string(10) "12.694.672" string(10) "14.684.160" int(0) string(9) "1.393.376" string(10) "12.582.912"
Output for 7.0.0 - 7.0.20
string(10) "12.693.648" string(10) "14.684.160" int(0) string(9) "1.392.352" string(10) "12.582.912"
Output for 5.6.7 - 5.6.28
string(10) "29.874.064" string(10) "30.408.704" int(0) string(9) "8.549.216" string(10) "16.252.928"
Output for 5.5.24 - 5.5.35
string(10) "29.874.064" string(10) "30.408.704" int(0) string(9) "8.549.192" string(10) "16.252.928"
Output for 5.4.10 - 5.4.45
string(10) "29.874.608" string(10) "30.408.704" int(0) string(9) "8.549.688" string(10) "15.728.640"
Output for 5.4.0 - 5.4.9
string(10) "29.874.544" string(10) "30.408.704" int(0) string(9) "8.549.688" string(10) "15.728.640"
Output for 5.3.11 - 5.3.29
string(10) "54.280.800" string(10) "55.050.240" int(0) string(9) "8.955.856" string(10) "10.485.760"
Output for 5.3.0 - 5.3.10
string(10) "54.280.728" string(10) "55.050.240" int(0) string(9) "8.955.720" string(10) "10.485.760"
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Fatal error: Call to undefined function gc_enable() in /in/ILQCK 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/ILQCK on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/ILQCK 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/ILQCK on line 5
Process exited with code 255.
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