3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a="lol"; $$a = "axax"; echo $lol;

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)
8.3.60.0090.00918.30
8.3.50.0060.00922.09
8.3.40.0120.00318.84
8.3.30.0070.00718.80
8.3.20.0040.00420.18
8.3.10.0040.00421.97
8.3.00.0040.00420.57
8.2.180.0120.00318.41
8.2.170.0000.01422.96
8.2.160.0140.00020.90
8.2.150.0120.00324.18
8.2.140.0050.00324.66
8.2.130.0070.00026.16
8.2.120.0050.00319.36
8.2.110.0060.00322.19
8.2.100.0090.00317.84
8.2.90.0080.00019.08
8.2.80.0000.00818.03
8.2.70.0040.00417.63
8.2.60.0000.00818.05
8.2.50.0030.00518.07
8.2.40.0040.00418.09
8.2.30.0000.00818.07
8.2.20.0000.00717.60
8.2.10.0000.00717.60
8.2.00.0030.00617.55
8.1.280.0070.01025.92
8.1.270.0030.00523.91
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0100.00023.78
8.1.230.0110.00019.08
8.1.220.0000.00917.74
8.1.210.0080.00018.77
8.1.200.0000.00917.22
8.1.190.0040.00417.54
8.1.180.0040.00418.10
8.1.170.0000.00818.52
8.1.160.0000.01022.02
8.1.150.0000.00818.59
8.1.140.0050.00317.49
8.1.130.0030.00317.81
8.1.120.0040.00417.51
8.1.110.0040.00417.34
8.1.100.0030.00317.46
8.1.90.0040.00417.48
8.1.80.0050.00317.32
8.1.70.0000.00717.40
8.1.60.0030.00617.46
8.1.50.0050.00317.48
8.1.40.0030.00517.40
8.1.30.0060.00317.57
8.1.20.0080.00017.67
8.1.10.0050.00317.37
8.1.00.0000.00717.34
8.0.300.0030.00518.77
8.0.290.0000.00717.05
8.0.280.0000.00718.31
8.0.270.0040.00417.32
8.0.260.0000.00716.72
8.0.250.0070.00016.97
8.0.240.0030.00316.95
8.0.230.0000.00716.92
8.0.220.0000.00716.94
8.0.210.0030.00316.78
8.0.200.0030.00316.94
8.0.190.0030.00316.97
8.0.180.0060.00316.90
8.0.170.0000.00816.90
8.0.160.0030.00616.78
8.0.150.0000.00716.91
8.0.140.0000.00716.88
8.0.130.0000.00513.27
8.0.120.0040.00416.74
8.0.110.0000.00716.77
8.0.100.0040.00416.88
8.0.90.0070.00016.85
8.0.80.0030.01216.81
8.0.70.0050.00316.80
8.0.60.0000.00716.77
8.0.50.0050.00316.78
8.0.30.0110.01117.16
8.0.20.0070.01217.40
8.0.10.0040.00416.87
8.0.00.0070.00716.87
7.4.330.0000.00515.09
7.4.320.0000.00616.62
7.4.300.0030.00316.50
7.4.290.0040.00416.50
7.4.280.0070.00016.49
7.4.270.0000.00616.58
7.4.260.0000.00716.46
7.4.250.0040.00416.39
7.4.240.0020.00616.42
7.4.230.0000.00716.68
7.4.220.0070.01416.45
7.4.210.0090.00716.59
7.4.200.0040.00416.59
7.4.190.0000.00716.75
7.4.160.0040.01216.60
7.4.150.0120.00917.40
7.4.140.0100.01217.86
7.4.130.0120.00916.52
7.4.120.0110.00816.53
7.4.110.0160.00616.45
7.4.100.0120.01216.35
7.4.90.0120.00416.48
7.4.80.0170.00316.48
7.4.70.0170.00416.61
7.4.60.0140.00316.50
7.4.50.0060.00316.45
7.4.40.0030.01322.77
7.4.30.0090.01216.45
7.4.00.0030.01315.14
7.3.330.0030.00313.11
7.3.320.0000.00713.16
7.3.310.0030.00316.20
7.3.300.0000.00716.09
7.3.290.0000.01316.28
7.3.280.0100.00516.24
7.3.270.0030.01317.40
7.3.260.0030.01316.27
7.3.250.0050.01216.31
7.3.240.0030.01316.34
7.3.230.0150.00316.39
7.3.210.0060.01216.25
7.3.200.0100.01319.39
7.3.190.0060.01516.49
7.3.180.0110.00616.52
7.3.170.0090.00616.27
7.3.160.0030.01216.29
7.3.120.0100.00714.78
7.3.10.0090.00616.21
7.3.00.0080.00416.52
7.2.330.0120.00616.25
7.2.320.0140.00516.32
7.2.310.0130.00716.22
7.2.300.0120.00616.55
7.2.290.0090.00616.41
7.2.130.0000.01316.85
7.2.120.0030.00616.56
7.2.110.0030.01016.82
7.2.100.0040.01116.76
7.2.90.0110.00016.80
7.2.80.0030.00916.95
7.2.70.0000.01216.79
7.2.60.0080.00416.93
7.2.50.0000.01216.91
7.2.40.0070.00416.91
7.2.30.0030.01016.54
7.2.20.0100.00616.93
7.2.10.0050.00316.70
7.2.00.0030.00718.21
7.1.250.0090.00315.64
7.1.100.0070.00718.15
7.1.70.0060.00317.16
7.1.60.0110.01419.82
7.1.50.0190.01634.66
7.1.00.0030.07722.49
7.0.200.0040.00416.70
7.0.140.0130.06022.08
7.0.60.0070.07019.94
7.0.50.0070.06317.80
7.0.40.0100.08720.20
7.0.30.0230.04320.04
7.0.20.0300.04320.20
7.0.10.0130.03320.16
7.0.00.0100.05020.30
5.6.280.0000.06720.90
5.6.210.0170.07320.75
5.6.200.0070.05318.22
5.6.190.0100.07320.39
5.6.180.0300.04720.60
5.6.170.0370.07020.48
5.6.160.0000.09320.61
5.6.150.0170.05718.21
5.6.140.0100.08018.16
5.6.130.0170.07318.14
5.6.120.0130.07721.03
5.6.110.0130.08021.11
5.6.100.0100.05720.97
5.6.90.0000.05721.09
5.6.80.0030.08720.27
5.5.350.0230.07020.42
5.5.340.0100.07317.86
5.5.330.0130.04020.21
5.5.320.0200.04720.28
5.5.310.0330.07720.32
5.5.300.0100.07717.88
5.5.290.0100.08017.96
5.5.280.0000.04720.82
5.5.270.0130.05720.80
5.5.260.0070.06320.83
5.5.250.0070.03720.60
5.5.240.0170.05720.36
5.4.450.0070.04019.46
5.4.440.0300.03719.38
5.4.430.2370.03319.57
5.4.420.2200.05019.25
5.4.410.0400.03719.29
5.4.400.0500.06319.25
5.4.390.0270.06718.88
5.4.380.0230.04019.10
5.4.370.0200.03319.16
5.4.360.0170.04019.16
5.4.350.0230.07018.93
5.4.340.0230.04019.13
5.4.320.0270.05319.24
5.4.310.0200.04719.10
5.4.300.0330.05718.95
5.4.290.0270.06318.91
5.4.280.0200.04018.93
5.4.270.0200.03719.24
5.4.260.0170.06719.05
5.4.250.0170.03719.23
5.4.240.0230.03319.04
5.4.230.0270.06019.08
5.4.220.0200.03719.04
5.4.210.0170.05019.18
5.4.200.0070.03318.93
5.4.190.0070.06718.88
5.4.180.0100.07319.23
5.4.170.0970.04718.91
5.4.160.1570.03719.08
5.4.150.1800.04019.06
5.4.140.1300.04016.19
5.4.130.1930.03316.27
5.4.120.1570.04316.33
5.4.110.1200.02716.36
5.4.100.0170.03316.45
5.4.90.0170.07016.38
5.4.80.0200.03316.32
5.4.70.0170.05316.21
5.4.60.0230.04716.44
5.4.50.0230.03016.38
5.4.40.0200.03016.36
5.4.30.0170.03316.27
5.4.20.0170.03716.19
5.4.10.0230.04016.36
5.4.00.0200.04715.69
5.3.290.0230.06314.50
5.3.280.0200.04314.46
5.3.270.0300.06014.47
5.3.260.0130.05314.46
5.3.250.0230.04014.46
5.3.240.0200.04314.44
5.3.230.0200.07014.52
5.3.220.0230.05714.40
5.3.210.0200.03314.47
5.3.200.0230.07014.53
5.3.190.0230.05014.42
5.3.180.0130.04714.51
5.3.170.0100.06014.50
5.3.160.0300.03314.52
5.3.150.0130.04314.46
5.3.140.0400.03314.39
5.3.130.0000.04314.59
5.3.120.0030.03714.39
5.3.110.0100.04014.59
5.3.100.0030.04313.97
5.3.90.1230.03713.97
5.3.80.1730.03013.84
5.3.70.2500.02713.79
5.3.60.2500.04013.88
5.3.50.2400.03013.89
5.3.40.0830.04013.82
5.3.30.0030.04013.86
5.3.20.0070.03313.67
5.3.10.0000.04313.60
5.3.00.2400.04013.59
5.2.170.2200.03711.30
5.2.160.2370.02311.05
5.2.150.2170.03311.08
5.2.140.1830.03011.29
5.2.130.1100.04311.11
5.2.120.2170.03011.11
5.2.110.2170.02311.25
5.2.100.2130.03311.18
5.2.90.1470.03011.01
5.2.80.1570.03011.19
5.2.70.1970.02011.03
5.2.60.2500.03310.89
5.2.50.2100.03310.95
5.2.40.1930.02710.89
5.2.30.1770.03010.98
5.2.20.1800.02711.02
5.2.10.1570.03310.82
5.2.00.1870.03310.62
5.1.60.0870.02710.11
5.1.50.1770.0309.88
5.1.40.1200.0239.91
5.1.30.1370.03010.30
5.1.20.1600.03310.29
5.1.10.1600.03010.08
5.1.00.1930.0209.96
5.0.50.0870.0209.52
5.0.40.1100.0209.52
5.0.30.0970.0379.52
5.0.20.0800.0209.52
5.0.10.0870.0239.52
5.0.00.0530.0379.52
4.4.90.1000.0179.52
4.4.80.0900.0209.52
4.4.70.1030.0209.52
4.4.60.1030.0209.52
4.4.50.0830.0179.52
4.4.40.1000.0309.52
4.4.30.0830.0179.52
4.4.20.0130.0209.52
4.4.10.0900.0139.52
4.4.00.0970.0279.52
4.3.110.0970.0239.52
4.3.100.0930.0209.52
4.3.90.1070.0209.52
4.3.80.0930.0279.52
4.3.70.1000.0209.52
4.3.60.1030.0209.52
4.3.50.1100.0209.52
4.3.40.0830.0239.52
4.3.30.0070.0179.52
4.3.20.0400.0209.52
4.3.10.0400.0179.52
4.3.00.0530.0209.52

preferences:
40.43 ms | 401 KiB | 5 Q