Online PHP editor | refs for 3r0Hf

<?php //Defining a constant Test $DefConst_TimeStart = microtime(); $DefConst_MemStart = memory_get_usage(); for($i=1;$i<=100000;$i++){ define("x$i",$i); } $DefConst_MemEnd = memory_get_usage(); $DefConst_TimeEnd = microtime(); //Variable test $Variable_TimeStart = microtime(); $Variable_MemStart = memory_get_usage(); for($i=1;$i<=100000;$i++){ ${"x".$i} = $i; } $Variable_MemEnd = memory_get_usage(); $Variable_TimeEnd = microtime(); //Output of the results echo "Define Constant: Time: ".($DefConst_TimeEnd - $DefConst_TimeStart)." ms | Memory: ".($DefConst_MemEnd - $DefConst_MemStart)." Bytes\n"; echo "Setting Variable: Time: ".($Variable_TimeEnd - $Variable_TimeStart)." ms | Memory: ".($Variable_MemEnd - $Variable_MemStart)." Bytes\n";