3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (!isset($foo))

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)
5.4.320.0060.03712.46
5.4.310.0060.03912.46
5.4.300.0090.03412.46
5.4.290.0070.04212.46
5.4.280.0090.03312.36
5.4.270.0040.03812.36
5.4.260.0030.04012.36
5.4.250.0080.03412.36
5.4.240.0080.04312.36
5.4.230.0060.04012.35
5.4.220.0050.03612.36
5.4.210.0060.04212.35
5.4.200.0080.03412.35
5.4.190.0060.04312.35
5.4.180.0040.03712.35
5.4.170.0070.03512.36
5.4.160.0060.03712.35
5.4.150.0070.04812.35
5.4.140.0070.04212.04
5.4.130.0070.04012.02
5.4.120.0090.04311.98
5.4.110.0080.04511.98
5.4.100.0080.04011.98
5.4.90.0080.04011.98
5.4.80.0090.04111.98
5.4.70.0060.03511.98
5.4.60.0070.03411.97
5.4.50.0060.03611.98
5.4.40.0040.03711.96
5.4.30.0080.03311.96
5.4.20.0080.03311.96
5.4.10.0050.03811.96
5.4.00.0020.03911.46
5.3.290.0070.04112.80
5.3.280.0070.04412.71
5.3.270.0080.03712.72
5.3.260.0060.03912.72
5.3.250.0080.03412.72
5.3.240.0060.03712.72
5.3.230.0050.03912.71
5.3.220.0070.04212.68
5.3.210.0050.04012.68
5.3.200.0050.03712.68
5.3.190.0040.04012.68
5.3.180.0060.04212.67
5.3.170.0040.04312.67
5.3.160.0050.03912.67
5.3.150.0040.03912.67
5.3.140.0020.03912.66
5.3.130.0080.03612.66
5.3.120.0070.03812.66
5.3.110.0090.04012.66
5.3.100.0080.03912.11
5.3.90.0060.03912.09
5.3.80.0080.04312.07
5.3.70.0150.02912.07
5.3.60.0050.03912.07
5.3.50.0070.03612.00
5.3.40.0060.03612.00
5.3.30.0060.03411.95
5.3.20.0070.03411.72
5.3.10.0030.03711.71
5.3.00.0050.03711.68
5.2.170.0030.0329.18
5.2.160.0030.0319.18
5.2.150.0050.0329.18
5.2.140.0050.0349.17
5.2.130.0020.0329.14
5.2.120.0060.0289.14
5.2.110.0050.0359.14
5.2.100.0070.0299.14
5.2.90.0050.0299.14
5.2.80.0040.0329.14
5.2.70.0050.0339.14
5.2.60.0090.0269.09
5.2.50.0050.0309.06
5.2.40.0060.0299.04
5.2.30.0060.0299.01
5.2.20.0060.0399.00
5.2.10.0040.0378.93
5.2.00.0040.0308.78
5.1.60.0060.0228.06
5.1.50.0070.0268.06
5.1.40.0030.0328.05
5.1.30.0060.0248.40
5.1.20.0040.0278.42
5.1.10.0060.0248.14
5.1.00.0040.0258.14
5.0.50.0050.0196.62
5.0.40.0030.0216.48
5.0.30.0010.0336.29
5.0.20.0040.0186.27
5.0.10.0030.0206.24
5.0.00.0030.0316.23
4.4.90.0030.0154.77
4.4.80.0050.0134.76
4.4.70.0050.0144.76
4.4.60.0020.0164.76
4.4.50.0040.0144.77
4.4.40.0020.0254.71
4.4.30.0020.0164.76
4.4.20.0020.0164.84
4.4.10.0030.0154.85
4.4.00.0030.0254.76
4.3.110.0030.0154.67
4.3.100.0060.0154.66
4.3.90.0040.0134.63
4.3.80.0000.0274.58
4.3.70.0050.0124.63
4.3.60.0040.0134.63
4.3.50.0010.0174.63
4.3.40.0040.0224.54
4.3.30.0000.0183.29
4.3.20.0000.0183.26
4.3.10.0020.0153.22
4.3.00.0030.02015.68

preferences:
140.24 ms | 1394 KiB | 7 Q