3v4l.org

run code in 300+ PHP versions simultaneously
<?php substr("AAAAB", 0, -2)

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)
5.4.340.0070.03811.97
5.4.320.0070.04012.46
5.4.310.0110.03512.46
5.4.300.0040.04212.47
5.4.290.0080.05112.46
5.4.280.0090.03712.36
5.4.270.0060.03612.36
5.4.260.0070.03912.36
5.4.250.0050.04112.36
5.4.240.0080.03412.36
5.4.230.0070.04712.35
5.4.220.0090.03412.35
5.4.210.0060.03512.35
5.4.200.0050.04112.35
5.4.190.0030.03812.34
5.4.180.0080.03412.35
5.4.170.0080.03412.36
5.4.160.0110.03412.36
5.4.150.0090.03712.35
5.4.140.0120.03812.04
5.4.130.0110.03512.02
5.4.120.0090.03411.98
5.4.110.0070.03611.98
5.4.100.0070.03511.98
5.4.90.0070.04211.98
5.4.80.0080.04011.98
5.4.70.0080.03711.98
5.4.60.0090.03511.98
5.4.50.0090.04511.98
5.4.40.0050.03611.96
5.4.30.0050.03611.96
5.4.20.0050.03511.96
5.4.10.0090.03211.96
5.4.00.0050.03711.45
5.3.290.0070.03912.80
5.3.280.0080.03812.71
5.3.270.0110.04512.72
5.3.260.0060.04312.72
5.3.250.0050.04212.72
5.3.240.0080.03512.72
5.3.230.0040.04012.71
5.3.220.0080.03512.68
5.3.210.0060.04012.68
5.3.200.0050.03812.68
5.3.190.0110.04112.67
5.3.180.0080.03812.68
5.3.170.0060.03712.67
5.3.160.0080.03412.67
5.3.150.0080.03712.68
5.3.140.0090.03612.66
5.3.130.0050.03912.66
5.3.120.0050.04012.65
5.3.110.0130.04312.66
5.3.100.0120.03612.12
5.3.90.0070.03812.08
5.3.80.0070.03712.07
5.3.70.0070.03612.07
5.3.60.0050.04012.07
5.3.50.0060.03912.00
5.3.40.0050.04212.00
5.3.30.0110.03411.95
5.3.20.0080.03711.72
5.3.10.0060.03711.70
5.3.00.0060.03911.68
5.2.170.0040.0389.18
5.2.160.0050.0319.18
5.2.150.0030.0339.18
5.2.140.0020.0349.18
5.2.130.0070.0279.14
5.2.120.0100.0379.14
5.2.110.0100.0289.15
5.2.100.0110.0269.14
5.2.90.0070.0329.14
5.2.80.0050.0339.14
5.2.70.0070.0319.14
5.2.60.0080.0299.10
5.2.50.0050.0329.06
5.2.40.0050.0359.04
5.2.30.0050.0319.02
5.2.20.0040.0329.00
5.2.10.0050.0298.92
5.2.00.0090.0258.78
5.1.60.0060.0258.07
5.1.50.0040.0338.06
5.1.40.0030.0358.05
5.1.30.0070.0248.40
5.1.20.0060.0288.41
5.1.10.0070.0248.14
5.1.00.0010.0328.14
5.0.50.0040.0316.62
5.0.40.0040.0246.48
5.0.30.0040.0376.29
5.0.20.0030.0246.27
5.0.10.0060.0226.24
5.0.00.0060.0416.23
4.4.90.0020.0234.78
4.4.80.0040.0194.75
4.4.70.0040.0224.75
4.4.60.0050.0144.76
4.4.50.0040.0154.77
4.4.40.0020.0294.70
4.4.30.0040.0164.76
4.4.20.0140.0694.84
4.4.10.0030.0194.85
4.4.00.0080.0224.76
4.3.110.0030.0184.67
4.3.100.0050.0164.66
4.3.90.0030.0174.63
4.3.80.0020.0294.59
4.3.70.0100.0204.63
4.3.60.0040.0194.63
4.3.50.0040.0224.63
4.3.40.0030.0314.54
4.3.30.0020.0193.28
4.3.20.0020.0163.26
4.3.10.0020.0183.22
4.3.00.0000.0209.86

preferences:
137.53 ms | 1394 KiB | 7 Q