3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = "a"; $$var == 5;

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)
8.3.60.0120.00318.55
8.3.50.0130.00521.90
8.3.40.0070.00718.85
8.3.30.0110.00618.89
8.3.20.0080.00020.16
8.3.10.0040.00423.53
8.3.00.0080.00020.74
8.2.180.0120.00616.50
8.2.170.0110.00322.96
8.2.160.0100.00320.39
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0070.00026.16
8.2.120.0060.00319.36
8.2.110.0050.00522.11
8.2.100.0070.00420.39
8.2.90.0050.00319.09
8.2.80.0080.00017.97
8.2.70.0060.00317.63
8.2.60.0040.00417.80
8.2.50.0030.00518.07
8.2.40.0040.00418.34
8.2.30.0040.00418.14
8.2.20.0050.00217.66
8.2.10.0040.00418.10
8.2.00.0030.00617.68
8.1.280.0070.01025.92
8.1.270.0000.00823.97
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0090.00022.06
8.1.230.0000.01119.09
8.1.220.0080.00017.74
8.1.210.0000.00918.77
8.1.200.0030.00617.21
8.1.190.0040.00417.23
8.1.180.0040.00418.10
8.1.170.0090.00018.50
8.1.160.0000.00721.96
8.1.150.0040.00418.67
8.1.140.0040.00417.37
8.1.130.0030.00317.78
8.1.120.0050.00217.36
8.1.110.0040.00417.53
8.1.100.0080.00017.41
8.1.90.0040.00317.42
8.1.80.0000.00717.51
8.1.70.0000.00717.45
8.1.60.0040.00417.51
8.1.50.0040.00417.42
8.1.40.0040.00417.47
8.1.30.0080.00017.46
8.1.20.0040.00417.60
8.1.10.0040.00417.39
8.1.00.0030.00617.32
8.0.300.0000.00718.77
8.0.290.0030.00516.75
8.0.280.0070.00018.52
8.0.270.0030.00317.20
8.0.260.0000.00617.30
8.0.250.0030.00316.91
8.0.240.0030.00617.03
8.0.230.0030.00316.91
8.0.220.0000.00716.81
8.0.210.0030.00316.88
8.0.200.0000.00617.05
8.0.190.0030.00316.97
8.0.180.0000.00716.98
8.0.170.0030.00616.94
8.0.160.0070.00016.91
8.0.150.0000.00716.86
8.0.140.0000.00716.84
8.0.130.0030.00313.37
8.0.120.0040.00416.86
8.0.110.0040.00416.91
8.0.100.0000.00717.00
8.0.90.0030.00517.01
8.0.80.0060.00916.87
8.0.70.0070.00016.83
8.0.60.0000.00716.81
8.0.50.0040.00416.85
8.0.30.0080.01117.18
8.0.20.0120.00717.40
8.0.10.0050.00217.00
8.0.00.0120.00516.92
7.4.330.0030.00315.09
7.4.320.0000.00616.36
7.4.300.0030.00316.61
7.4.290.0100.00016.46
7.4.280.0000.00716.49
7.4.270.0030.00316.56
7.4.260.0000.00716.59
7.4.250.0070.00016.57
7.4.240.0030.00316.55
7.4.230.0030.00316.66
7.4.220.0110.00716.43
7.4.210.0100.00316.55
7.4.200.0040.00416.66
7.4.160.0000.01616.57
7.4.150.0060.01217.40
7.4.140.0110.00917.86
7.4.130.0080.00816.60
7.4.120.0080.00916.61
7.4.110.0130.01016.43
7.4.100.0070.01016.50
7.4.90.0070.01116.42
7.4.80.0120.00919.39
7.4.70.0000.01616.56
7.4.60.0150.00516.54
7.4.50.0030.00616.63
7.4.40.0060.01116.24
7.4.30.0040.01216.45
7.4.00.0000.01015.04
7.3.330.0000.00613.29
7.3.320.0000.00513.05
7.3.310.0030.00316.38
7.3.300.0030.00316.09
7.3.290.0030.01016.37
7.3.280.0090.00916.32
7.3.270.0070.01717.40
7.3.260.0130.00716.50
7.3.250.0090.00916.40
7.3.240.0060.01216.51
7.3.230.0130.00316.39
7.3.210.0180.00316.35
7.3.200.0090.01219.39
7.3.190.0100.01016.54
7.3.180.0080.00816.48
7.3.170.0130.00316.34
7.3.160.0160.00616.46
7.3.120.0100.00315.05
7.3.10.0070.00716.67
7.3.00.0030.01016.36
7.2.330.0000.01716.60
7.2.320.0100.00716.30
7.2.310.0060.01016.57
7.2.300.0040.01416.44
7.2.290.0030.01916.44
7.2.130.0000.01516.82
7.2.120.0030.01516.90
7.2.110.0030.01016.91
7.2.100.0000.01616.63
7.2.90.0040.01116.81
7.2.80.0060.00616.64
7.2.70.0090.00316.88
7.2.60.0030.00916.59
7.2.50.0030.01016.82
7.2.40.0030.00616.88
7.2.30.0030.00916.92
7.2.20.0060.00616.41
7.2.10.0060.01016.99
7.2.00.0100.00616.88
7.1.250.0040.00415.45
7.1.100.0040.00818.19
7.1.70.0170.00017.24
7.1.60.0090.00419.70
7.1.50.0120.01216.95
7.1.00.0030.07722.40
7.0.200.0000.00816.66
7.0.140.0100.06021.95
7.0.60.0000.08719.92
7.0.50.0070.06017.87
7.0.40.0070.06020.19
7.0.30.0570.06720.20
7.0.20.0230.05320.16
7.0.10.0070.08720.04
7.0.00.0130.06320.19
5.6.280.0100.06720.81
5.6.210.0100.08020.66
5.6.200.0170.07018.11
5.6.190.0030.07320.27
5.6.180.3570.03720.27
5.6.170.0330.06020.52
5.6.160.0030.07720.61
5.6.150.0070.08018.22
5.6.140.0070.03318.21
5.6.130.0130.07718.18
5.6.120.0100.05321.11
5.6.110.0030.05721.00
5.6.100.0030.08720.99
5.6.90.0130.05320.96
5.6.80.0100.07020.43
5.6.70.4430.03320.51
5.5.350.0070.07320.40
5.5.340.0000.07718.02
5.5.330.0100.03720.25
5.5.320.0230.03720.30
5.5.310.0400.07320.17
5.5.300.0000.05017.92
5.5.290.0100.07717.96
5.5.280.0000.04320.75
5.5.270.0100.08320.75
5.5.260.0070.07720.97
5.5.250.0100.05720.65
5.5.240.0270.07320.12
5.4.450.1870.04319.41
5.4.440.1270.04319.58
5.4.430.1670.03019.54
5.4.420.1830.04719.54
5.4.410.1930.03719.32
5.4.400.0130.03019.26
5.4.390.0030.03719.13
5.4.380.0030.04318.80
5.4.370.1300.04019.25
5.4.360.1700.04019.09
5.4.350.1630.03318.92
5.4.340.1500.04019.13
5.4.320.1570.03318.93
5.4.310.1500.04019.13
5.4.300.1570.03319.05
5.4.290.1470.03318.88
5.4.280.1500.03019.13
5.4.270.1400.04318.77
5.4.260.1570.03718.85
5.4.250.1400.03719.16
5.4.240.1270.04318.77
5.4.230.1570.03719.23
5.4.220.1630.03719.08
5.4.210.1270.04019.07
5.4.200.1600.03719.21
5.4.190.1700.04019.14
5.4.180.1770.03719.14
5.4.170.1430.03718.77
5.4.160.1370.04319.04
5.4.150.1700.04019.07
5.4.140.1870.03316.29
5.4.130.1700.04316.22
5.4.120.1800.04316.33
5.4.110.1830.03316.44
5.4.100.1930.04016.21
5.4.90.1530.03316.44
5.4.80.1800.03716.45
5.4.70.1800.04016.20
5.4.60.1500.03716.43
5.4.50.1700.04316.21
5.4.40.1730.03716.43
5.4.30.1770.04316.39
5.4.20.1600.03316.19
5.4.10.1900.03716.30
5.4.00.1570.03015.70
5.3.290.1700.04714.59
5.3.280.1770.04314.57
5.3.270.1830.03714.44
5.3.260.1700.04014.46
5.3.250.1730.04714.64
5.3.240.1730.04714.64
5.3.230.1870.04314.44
5.3.220.1830.03714.51
5.3.210.1570.03314.47
5.3.200.1770.04314.52
5.3.190.1600.03714.40
5.3.180.1700.03714.43
5.3.170.1730.02714.57
5.3.160.1530.04314.65
5.3.150.1700.03014.40
5.3.140.1830.04314.41
5.3.130.1870.04314.40
5.3.120.1800.04714.59
5.3.110.1730.04014.45
5.3.100.1730.03713.91
5.3.90.1600.03713.95
5.3.80.1700.04313.86
5.3.70.1300.03313.96
5.3.60.1800.05013.84
5.3.50.1600.03713.79
5.3.40.1700.03013.95
5.3.30.1770.04013.68
5.3.20.1730.04013.64
5.3.10.1630.03013.49
5.3.00.1900.03713.47
5.2.170.1330.02711.15
5.2.160.1300.03011.00
5.2.150.1370.02710.98
5.2.140.1700.03311.18
5.2.130.1530.03011.18
5.2.120.1370.03311.04
5.2.110.0000.03710.93
5.2.100.0000.04010.93
5.2.90.0030.06310.95
5.2.80.1000.03710.98
5.2.70.1500.02311.25
5.2.60.1300.03310.93
5.2.50.1500.03311.05
5.2.40.1230.03310.85
5.2.30.1130.03310.97
5.2.20.1130.03011.00
5.2.10.1000.03010.83
5.2.00.1130.03010.79
5.1.60.1270.02710.11
5.1.50.1200.0279.85
5.1.40.1270.0279.86
5.1.30.1270.03310.19
5.1.20.1270.03710.28
5.1.10.1170.02710.07
5.1.00.1270.0309.96
5.0.50.0530.0238.55
5.0.40.0530.0238.29
5.0.30.0570.0338.15
5.0.20.0630.0338.09
5.0.10.0730.0308.14
5.0.00.0530.0308.38
4.4.90.0530.0177.62
4.4.80.0500.0177.62
4.4.70.0570.0177.62
4.4.60.0630.0237.62
4.4.50.0500.0207.62
4.4.40.0500.0277.62
4.4.30.0600.0207.62
4.4.20.0570.0137.62
4.4.10.0670.0237.62
4.4.00.0530.0237.62
4.3.110.0630.0237.62
4.3.100.0600.0207.62
4.3.90.0600.0207.62
4.3.80.0600.0377.62
4.3.70.0700.0207.62
4.3.60.0600.0237.62
4.3.50.0530.0137.62
4.3.40.0600.0307.62
4.3.30.0270.0177.62
4.3.20.0330.0337.62
4.3.10.0430.0277.62
4.3.00.0370.0307.62

preferences:
66.79 ms | 401 KiB | 5 Q