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run code in 150+ php & hhvm versions
Bugs & Features
<?php $i = 0; $data = array(); $total = memory_get_usage(true); for ($i=0; $i<1000; $i++) { $data[] = $i; } echo memory_get_usage(true) - $total, " bytes"; $var['test'] = 'value';
Output for 5.2.1 - 5.3.29, 7.0.0 - 7.1.0
0 bytes
Output for 5.4.0 - 5.6.28
262144 bytes
Output for 5.0.0 - 5.2.0
<br /> <b>Fatal error</b>: Call to undefined function memory_get_usage() in <b>/in/Ke9Sh</b> on line <b>5</b><br />
Process exited with code 255.
Output for 4.4.5 - 4.4.9
<br /> <b>Fatal error</b>: Call to undefined function: memory_get_usage() in <b>/in/Ke9Sh</b> on line <b>5</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.4.4
<br /> <b>Fatal error</b>: Call to undefined function: memory_get_usage() in <b>/in/Ke9Sh</b> on line <b>5</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1
<br /> <b>Fatal error</b>: Call to undefined function: memory_get_usage() in <b>/in/Ke9Sh</b> on line <b>5</b><br />