3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php gc_enable(); class test { public $spl; public function __construct() { $this->spl = new SplPriorityQueue(); $this->spl->insert($this, 1); } } $output = ''; $i = 0; while($i < 100) { $time = microtime(1); $test = new test(); unset($test); gc_collect_cycles(); $ouput .= sprintf('%1$04d: ', $i) . number_format(memory_get_usage()) . " B\n"; $i++; } echo $output;
Output for 5.3.0 - 5.6.21, 7.0.0 - 7.1.0
Notice: Undefined variable: ouput in /in/r6dB5 on line 26
Output for hhvm-3.10.0 - 3.12.0
Output for 5.0.0 - 5.2.17
Fatal error: Call to undefined function gc_enable() in /in/r6dB5 on line 3
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/r6dB5 on line 7
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/r6dB5 on line 7
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/r6dB5 on line 7
Process exited with code 255.