3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(); echo $b; unset($b);

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)
8.3.40.0160.00318.78
8.3.30.0090.00618.92
8.3.20.0090.00620.20
8.3.10.0050.00323.71
8.3.00.0040.00419.25
8.2.170.0140.00722.96
8.2.160.0150.00020.35
8.2.150.0040.00424.18
8.2.140.0090.00024.66
8.2.130.0050.00326.16
8.2.120.0060.00321.86
8.2.110.0030.00621.19
8.2.100.0090.00317.91
8.2.90.0040.00419.22
8.2.80.0040.00417.97
8.2.70.0000.00817.63
8.2.60.0080.00017.93
8.2.50.0000.00918.10
8.2.40.0040.00418.22
8.2.30.0030.00517.86
8.2.20.0000.00817.71
8.2.10.0040.00418.03
8.2.00.0000.01017.68
8.1.270.0150.00023.82
8.1.260.0000.00826.35
8.1.250.0110.00728.09
8.1.240.0090.00023.96
8.1.230.0070.00417.77
8.1.220.0080.00017.74
8.1.210.0030.00518.77
8.1.200.0030.00617.10
8.1.190.0060.00317.10
8.1.180.0080.00018.10
8.1.170.0000.00818.51
8.1.160.0040.00421.95
8.1.150.0000.00718.57
8.1.140.0030.00617.29
8.1.130.0030.00517.83
8.1.120.0000.00717.30
8.1.110.0050.00217.38
8.1.100.0070.00017.41
8.1.90.0000.00717.40
8.1.80.0030.00317.40
8.1.70.0040.00417.34
8.1.60.0060.00317.52
8.1.50.0040.00417.33
8.1.40.0000.00717.41
8.1.30.0030.00617.54
8.1.20.0040.00417.46
8.1.10.0000.00717.52
8.1.00.0000.00717.42
8.0.300.0070.00018.77
8.0.290.0040.00416.75
8.0.280.0000.00718.39
8.0.270.0000.00717.30
8.0.260.0060.00016.86
8.0.250.0060.00016.88
8.0.240.0050.00517.04
8.0.230.0030.00317.01
8.0.220.0030.00416.89
8.0.210.0000.00716.79
8.0.200.0030.00316.83
8.0.190.0040.00416.93
8.0.180.0000.00816.86
8.0.170.0040.00416.86
8.0.160.0000.00816.84
8.0.150.0070.00016.77
8.0.140.0020.00516.82
8.0.130.0000.00613.30
8.0.120.0030.00516.75
8.0.110.0070.00016.75
8.0.100.0040.00416.77
8.0.90.0000.00716.88
8.0.80.0030.01216.84
8.0.70.0050.00216.90
8.0.60.0040.00416.88
8.0.50.0030.00516.71
8.0.30.0080.01117.10
8.0.20.0070.01517.40
8.0.10.0050.00317.11
8.0.00.0150.00516.82
7.4.330.0000.00615.02
7.4.320.0000.00616.33
7.4.300.0030.00316.37
7.4.290.0040.00416.53
7.4.280.0030.00316.52
7.4.270.0060.00016.50
7.4.260.0030.00316.39
7.4.250.0030.00516.49
7.4.240.0030.00416.54
7.4.230.0000.00716.32
7.4.220.0060.01216.54
7.4.210.0100.00616.54
7.4.200.0040.00416.57
7.4.190.0040.00416.59
7.4.160.0120.00316.26
7.4.150.0120.01317.40
7.4.140.0100.01117.86
7.4.130.0110.00516.44
7.4.120.0080.00816.49
7.4.110.0170.00016.34
7.4.100.0030.01516.62
7.4.90.0100.00716.52
7.4.80.0030.01619.39
7.4.70.0100.00616.67
7.4.60.0130.00316.55
7.4.50.0090.00016.55
7.4.40.0090.00622.77
7.4.30.0090.00616.28
7.4.00.0000.01115.07
7.3.330.0050.00013.15
7.3.320.0050.00013.04
7.3.310.0030.00316.19
7.3.300.0070.00016.20
7.3.290.0080.00816.25
7.3.280.0110.00716.24
7.3.270.0060.01217.40
7.3.260.0140.00416.19
7.3.250.0120.00916.25
7.3.240.0090.01316.21
7.3.230.0060.00916.39
7.3.210.0050.01216.64
7.3.200.0090.01319.39
7.3.190.0120.01316.23
7.3.180.0040.01116.25
7.3.170.0060.00916.27
7.3.160.0040.01116.41
7.3.120.0040.01114.44
7.2.330.0120.00516.31
7.2.320.0060.00916.46
7.2.310.0070.01416.52
7.2.300.0040.01216.64
7.2.290.0060.00916.62
7.2.60.0000.01116.65
7.2.00.0000.01519.44
7.1.200.0040.00815.29
7.1.100.0040.01816.02
7.1.70.0000.00716.80
7.1.60.0180.00719.33
7.1.50.0070.01416.76
7.1.00.0100.06722.40
7.0.200.0070.00716.72
7.0.140.0000.06722.09
7.0.60.0030.03321.59
7.0.50.0000.08017.79
7.0.40.0030.04720.30
7.0.30.0300.03720.17
7.0.20.0270.08020.04
7.0.10.0030.08720.19
7.0.00.0070.07720.19
5.6.280.0100.06720.86
5.6.210.0070.07720.74
5.6.200.0030.08718.08
5.6.190.0070.08320.56
5.6.180.0300.08020.56
5.6.170.0130.04320.48
5.6.160.0070.07020.48
5.6.150.0070.03318.14
5.6.140.0000.05318.13
5.6.130.0000.04318.13
5.6.120.0070.06021.05
5.6.110.0030.08721.02
5.6.100.0100.05320.88
5.6.90.0100.08020.98
5.6.80.0100.06020.38
5.5.350.0200.03020.40
5.5.340.0100.03717.98
5.5.330.0070.06320.29
5.5.320.0200.04320.13
5.5.310.0200.05320.41
5.5.300.0070.05017.91
5.5.290.0030.08717.95
5.5.280.0100.08320.76
5.5.270.0030.08720.72
5.5.260.0070.06720.85
5.5.250.0270.07720.61
5.5.240.0070.07320.23
5.4.450.0400.04019.13
5.4.440.0300.03719.13
5.4.430.0400.06719.25
5.4.420.0300.04319.25
5.4.410.0200.05019.33
5.4.400.0200.04319.21
5.4.390.0370.05318.88
5.4.380.0430.04318.93
5.4.370.0330.04318.93
5.4.360.0270.03719.10
5.4.350.0200.04318.77
5.4.340.0270.04019.14
5.4.320.0330.06719.11
5.4.310.0400.05718.78
5.4.300.0330.06319.23
5.4.290.0330.04018.93
5.4.280.0300.05719.07
5.4.270.0300.04019.04
5.4.260.0230.04019.07
5.4.250.0230.03719.22
5.4.240.0270.04018.92
5.4.230.0400.06719.22
5.4.220.0400.05019.07
5.4.210.0330.05718.88
5.4.200.0300.04018.92
5.4.190.0270.04018.77
5.4.180.0470.07019.23
5.4.170.0430.04019.19
5.4.160.0470.04319.20
5.4.150.0470.05318.99
5.4.140.0500.03716.26
5.4.130.0400.05016.44
5.4.120.0470.06016.53
5.4.110.0470.06016.21
5.4.100.0400.04316.42
5.4.90.0430.04716.38
5.4.80.0370.06316.32
5.4.70.0400.06716.37
5.4.60.0600.05016.30
5.4.50.0500.05716.42
5.4.40.0430.05316.42
5.4.30.0400.06716.19
5.4.20.0530.06016.41
5.4.10.0400.06716.14
5.4.00.0430.04315.82
5.3.290.0370.05714.75
5.3.280.0370.04314.60
5.3.270.0370.04014.39
5.3.260.0500.05314.46
5.3.250.0430.06014.47
5.3.240.0370.06714.44
5.3.230.0330.04314.45
5.3.220.0370.04714.44
5.3.210.0370.03014.40
5.3.200.0470.04314.51
5.3.190.0230.04014.65
5.3.180.0230.04014.41
5.3.170.0230.04014.46
5.3.160.0230.04014.41
5.3.150.0300.04314.46
5.3.140.0270.03714.45
5.3.130.0270.03714.40
5.3.120.0300.03314.39
5.3.110.0230.04714.45
5.3.100.0370.04013.87
5.3.90.0230.05013.96
5.3.80.0430.03313.96
5.3.70.0330.03713.81
5.3.60.0300.04713.91
5.3.50.0230.03713.79
5.3.40.0270.03313.95
5.3.30.0300.04013.84
5.3.20.0300.04013.54
5.3.10.0330.04013.50
5.3.00.0270.03313.59
5.2.170.0270.03312.43
5.2.160.0230.02712.43
5.2.150.0230.03312.43
5.2.140.0300.03312.43
5.2.130.0200.03312.43
5.2.120.0270.02312.43
5.2.110.0200.03012.43
5.2.100.0200.03012.43
5.2.90.0170.03012.43
5.2.80.0170.03312.43
5.2.70.0230.02712.43
5.2.60.0200.03012.43
5.2.50.0170.03312.43
5.2.40.0230.02712.43
5.2.30.0170.02712.43
5.2.20.0170.03012.43
5.2.10.0230.03012.43
5.2.00.0170.04312.43
5.1.60.0100.03012.43
5.1.50.0170.02312.43
5.1.40.0130.02712.43
5.1.30.0170.03012.43
5.1.20.0170.02312.43
5.1.10.0170.02312.43
5.1.00.0170.03312.43
5.0.50.0030.02712.43
5.0.40.0100.01712.43
5.0.30.0170.02312.43
5.0.20.0170.01312.43
5.0.10.0070.02312.43
5.0.00.0070.03012.43
4.4.90.0170.01012.43
4.4.80.0070.01712.43
4.4.70.0070.01712.43
4.4.60.0100.01312.43
4.4.50.0070.01712.43
4.4.40.0100.02312.43
4.4.30.0100.01712.43
4.4.20.0070.01712.43
4.4.10.0100.01312.43
4.4.00.0070.02312.43
4.3.110.0070.02012.43
4.3.100.0130.01712.43
4.3.90.0100.01712.43
4.3.80.0070.02312.43
4.3.70.0100.01312.43
4.3.60.0130.01012.43
4.3.50.0070.01712.43
4.3.40.0070.03012.43
4.3.30.0070.01312.43
4.3.20.0030.01712.43
4.3.10.0030.01712.43
4.3.00.0030.01712.43

preferences:
38.52 ms | 400 KiB | 5 Q