3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = "AS A SINGLE FOOTSTEP WILL NOT MAKE A PATH ON THE EARTH, SO A SINGLE THOUGHT WILL NOT MAKE A PATHWAY IN THE MIND. TO MAKE A DEEP PHYSICAL PATH, WE WALK AGAIN AND AGAIN. TO MAKE A DEEP MENTAL PATH, WE MUST THINK OVER AND OVER, THE KIND OF THOUGHTS WE WISH TO DOMINATE OUR LIVES." echo str_to_lower($string);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
5.4.240.0060.03712.39
5.4.230.0120.04112.37
5.4.220.0100.04112.37
5.4.210.0120.03812.37
5.4.200.0120.03912.37
5.4.190.0110.03912.37
5.4.180.0110.03912.37
5.4.170.0100.03912.38
5.4.160.0100.04012.37
5.4.150.0100.04012.37
5.4.140.0120.03912.06
5.4.130.0080.04112.04
5.4.120.0090.04012.00
5.4.110.0080.04312.00
5.4.100.0150.03612.00
5.4.90.0080.04212.00
5.4.80.0090.04112.00
5.4.70.0090.03811.99
5.4.60.0120.03611.99
5.4.50.0100.03811.99
5.4.40.0120.03611.98
5.4.30.0090.04011.98
5.4.20.0160.04711.98
5.4.10.0130.03811.98
5.4.00.0120.03811.48
5.3.280.0110.04312.71
5.3.270.0190.06412.72
5.3.260.0140.03912.72
5.3.250.0120.03912.72
5.3.240.0160.03512.72
5.3.230.0120.04212.71
5.3.220.0110.04112.68
5.3.210.0150.06812.68
5.3.200.0110.04112.68
5.3.190.0100.04312.68
5.3.180.0110.04112.67
5.3.170.0160.05012.67
5.3.160.0120.04112.67
5.3.150.0120.04812.67
5.3.140.0130.03912.66
5.3.130.0180.06512.66
5.3.120.0100.04312.65
5.3.110.0140.04012.66
5.3.100.0100.04212.12
5.3.90.0150.05412.08
5.3.80.0120.04212.07
5.3.70.0090.04312.07
5.3.60.0110.03912.07
5.3.50.0110.04112.00
5.3.40.0120.03912.00
5.3.30.0090.04011.95
5.3.20.0130.05411.71
5.3.10.0120.03511.68
5.3.00.0120.03611.67

preferences:
142.53 ms | 1394 KiB | 7 Q