3v4l.org

run code in 300+ PHP versions simultaneously
<?php $start = microtime(true); $end = mircotime(true); $assign = $end - $start; $start = microtime(true); mircotime(true); mircotime(true); $end = mircotime(true); echo "Clean call: " . $assign . "\n"; echo "3 (+ assign) microtime calls: " . ($end-$start) . "\n"; echo "2 calls cleaned: " . (($end-$start) - $assign);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.24, 7.3.0 - 7.3.12
Fatal error: Uncaught Error: Call to undefined function mircotime() in /in/cWp57:4 Stack trace: #0 {main} thrown in /in/cWp57 on line 4
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Call to undefined function mircotime() in /in/cWp57 on line 4
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: mircotime() in /in/cWp57 on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: mircotime() in /in/cWp57 on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: mircotime() in /in/cWp57 on line 4
preferences:
155.74 ms | 401 KiB | 220 Q