3v4l.org

run code in 300+ PHP versions simultaneously
<?php function a($name) { $_SESSION[$name] = $$name; } a('a'); $a = 'abc';

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)
8.3.40.0040.01118.93
8.3.30.0100.00519.02
8.3.20.0000.00720.09
8.3.10.0070.00023.48
8.3.00.0050.00319.00
8.2.170.0100.00322.96
8.2.160.0070.00720.47
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0070.00726.16
8.2.120.0080.00019.80
8.2.110.0040.00420.52
8.2.100.0090.00317.84
8.2.90.0080.00017.88
8.2.80.0040.00417.97
8.2.70.0030.00617.93
8.2.60.0000.00718.28
8.2.50.0000.00818.10
8.2.40.0040.00419.47
8.2.30.0000.00719.18
8.2.20.0000.00717.62
8.2.10.0080.00018.11
8.2.00.0000.00717.71
8.1.270.0080.00018.80
8.1.260.0050.00226.35
8.1.250.0090.00028.09
8.1.240.0070.00323.86
8.1.230.0040.00820.97
8.1.220.0050.00317.77
8.1.210.0050.00318.77
8.1.200.0040.00717.36
8.1.190.0090.00317.35
8.1.180.0080.00018.10
8.1.170.0040.00418.32
8.1.160.0060.00318.89
8.1.150.0000.00818.91
8.1.140.0040.00417.43
8.1.130.0040.00417.83
8.1.120.0000.00717.52
8.1.110.0030.00617.41
8.1.100.0000.00717.48
8.1.90.0000.00817.39
8.1.80.0000.00817.37
8.1.70.0070.00017.35
8.1.60.0000.00817.52
8.1.50.0000.00817.56
8.1.40.0020.00517.43
8.1.30.0040.00417.54
8.1.20.0040.00417.59
8.1.10.0050.00217.54
8.1.00.0040.00417.32
8.0.300.0000.00820.16
8.0.290.0000.00716.63
8.0.280.0030.00318.35
8.0.270.0030.00317.13
8.0.260.0060.00017.18
8.0.250.0000.00716.95
8.0.240.0030.00316.98
8.0.230.0000.00816.86
8.0.220.0030.00316.94
8.0.210.0080.00016.84
8.0.200.0070.00017.00
8.0.190.0050.00316.88
8.0.180.0000.00716.96
8.0.170.0000.00816.84
8.0.160.0040.00416.97
8.0.150.0040.00416.83
8.0.140.0040.00416.83
8.0.130.0040.00413.46
8.0.120.0000.00816.96
8.0.110.0000.00716.85
8.0.100.0000.00816.79
8.0.90.0000.00717.01
8.0.80.0070.01016.91
8.0.70.0050.00316.89
8.0.60.0040.00417.01
8.0.50.0040.00416.84
8.0.30.0130.01117.10
8.0.20.0090.01417.40
8.0.10.0040.00417.13
8.0.00.0110.00916.92
7.4.330.0020.00215.03
7.4.320.0000.00616.52
7.4.300.0000.00816.55
7.4.290.0060.00016.51
7.4.280.0060.00316.63
7.4.270.0070.00016.41
7.4.260.0000.00716.47
7.4.250.0000.00716.56
7.4.240.0020.00516.46
7.4.230.0030.00316.32
7.4.220.0170.01316.55
7.4.210.0070.01016.61
7.4.200.0040.00416.50
7.4.160.0090.00616.42
7.4.150.0100.01017.40
7.4.140.0090.00917.86
7.4.130.0080.01016.47
7.4.120.0090.00616.57
7.4.110.0060.01216.57
7.4.100.0160.00316.46
7.4.90.0040.02016.46
7.4.80.0060.01219.39
7.4.70.0150.00616.48
7.4.60.0060.01016.38
7.4.50.0040.00416.66
7.4.40.0030.01416.54
7.4.30.0120.00616.54
7.4.00.0100.00314.91
7.3.330.0000.00613.41
7.3.320.0000.00513.43
7.3.310.0000.00716.32
7.3.300.0070.00016.37
7.3.290.0100.00616.33
7.3.280.0120.00716.35
7.3.270.0140.00417.40
7.3.260.0100.01216.36
7.3.250.0130.00716.34
7.3.240.0140.00916.57
7.3.230.0100.01016.66
7.3.210.0090.00816.43
7.3.200.0140.00716.49
7.3.190.0090.00616.33
7.3.180.0060.00916.55
7.3.170.0120.00916.53
7.3.160.0130.00816.52
7.2.330.0130.00416.59
7.2.320.0090.00916.30
7.2.310.0160.00016.37
7.2.300.0070.01116.68
7.2.290.0120.01116.73
7.2.60.0030.01116.71
7.2.00.0000.01219.50
7.1.200.0100.00315.84
7.1.100.0060.00617.94
7.1.70.0000.01616.93
7.1.60.0060.01919.22
7.1.50.0040.01116.92
7.1.00.0070.07322.48
7.0.200.0000.00816.80
7.0.140.0000.07022.16
7.0.60.0030.04020.09
7.0.50.0030.08317.84
7.0.40.0030.04720.18
7.0.30.0230.05020.20
7.0.20.0300.07720.06
7.0.10.0100.08020.21
7.0.00.0100.08320.18
5.6.280.0130.06321.07
5.6.210.0070.06320.67
5.6.200.0030.04718.22
5.6.190.0030.08720.52
5.6.180.0300.05720.59
5.6.170.0230.05720.66
5.6.160.0170.08020.54
5.6.150.0100.05718.14
5.6.140.0030.04718.28
5.6.130.0070.07718.23
5.6.120.0000.07721.05
5.6.110.0100.08020.99
5.6.100.0100.07021.02
5.6.90.0030.04021.11
5.6.80.0170.07720.43
5.5.350.0170.06320.43
5.5.340.0030.08717.92
5.5.330.0100.05320.13
5.5.320.0170.05020.30
5.5.310.0200.04020.27
5.5.300.0030.08717.95
5.5.290.0130.06017.95
5.5.280.0100.05320.80
5.5.270.0030.07720.79
5.5.260.0070.08020.76
5.5.250.0100.07320.62
5.5.240.0030.04720.23
5.4.450.0730.06719.19
5.4.440.0330.06719.30
5.4.430.0130.06019.58
5.4.420.0200.05019.70
5.4.410.0200.06019.36
5.4.400.0200.05019.29
5.4.390.0200.05319.23
5.4.380.0200.05318.58
5.4.370.0170.05318.52
5.4.360.0130.05718.51
5.4.350.0300.06718.47
5.4.340.0200.07318.53
5.4.320.0200.07718.50
5.4.310.0200.07318.80
5.4.300.0270.06718.63
5.4.290.0200.07018.68
5.4.280.0230.06718.65
5.4.270.0070.06318.76
5.4.260.0070.06318.68
5.4.250.0200.05018.76
5.4.240.0130.06718.57
5.4.230.0130.05718.61
5.4.220.0200.07318.75
5.4.210.0230.07018.61
5.4.200.0270.06016.79
5.4.190.0270.05018.45
5.4.180.0170.05318.77
5.4.170.0200.05018.75
5.4.160.0200.05718.60
5.4.150.0270.06318.75
5.4.140.0300.06016.42
5.4.130.0130.05316.44
5.4.120.0270.04316.45
5.4.110.0200.04716.29
5.4.100.0100.06016.17
5.4.90.0100.05716.15
5.4.80.0170.05016.17
5.4.70.0170.05316.41
5.4.60.0200.04716.25
5.4.50.0200.06716.16
5.4.40.0170.07316.18
5.4.30.0230.06316.29
5.4.20.0300.06016.14
5.4.10.0200.05316.23
5.4.00.0200.06315.71
5.3.290.0300.06314.79
5.3.280.0170.05714.62
5.3.270.0170.06314.66
5.3.260.0170.05714.73
5.3.250.0230.07014.79
5.3.240.0200.05314.59
5.3.230.0200.05714.61
5.3.220.0270.06014.61
5.3.210.0130.06014.62
5.3.200.0170.05314.60
5.3.190.0200.05314.75
5.3.180.0270.04714.55
5.3.170.0230.04714.77
5.3.160.0170.07714.60
5.3.150.0300.05314.75
5.3.140.0170.05314.71
5.3.130.0230.05714.53
5.3.120.0200.05314.77
5.3.110.0100.06314.57
5.3.100.0200.05014.02
5.3.90.0230.05014.07
5.3.80.0270.06014.12
5.3.70.0200.05714.07
5.3.60.0230.05014.03
5.3.50.0200.05314.01
5.3.40.0200.06013.98
5.3.30.0270.06013.90
5.3.20.0100.05313.79
5.3.10.0100.05713.69
5.3.00.0230.04013.84
5.2.170.0200.04711.21
5.2.160.0170.04311.18
5.2.150.0200.04711.12
5.2.140.0130.04711.23
5.2.130.0200.05311.11
5.2.120.0200.05311.15
5.2.110.0200.05311.31
5.2.100.0200.05311.21
5.2.90.0170.04011.20
5.2.80.0200.04311.04
5.2.70.0230.05011.12
5.2.60.0230.03711.07
5.2.50.0170.04711.07
5.2.40.0100.05310.99
5.2.30.0130.05311.01
5.2.20.0230.03310.99
5.2.10.0230.03710.88
5.2.00.0130.06010.74
5.1.60.0130.04710.06
5.1.50.0130.03310.01
5.1.40.0030.04310.04
5.1.30.0100.04310.50
5.1.20.0130.04310.44
5.1.10.0230.03710.10
5.1.00.0100.03710.15
5.0.50.0130.0278.56
5.0.40.0070.0408.43
5.0.30.0100.0408.24
5.0.20.0070.0308.27
5.0.10.0100.0278.20
5.0.00.0030.0478.30
4.4.90.0070.0277.04
4.4.80.0130.0237.04
4.4.70.0070.0277.04
4.4.60.0070.0237.04
4.4.50.0130.0177.04
4.4.40.0030.0407.04
4.4.30.0130.0237.04
4.4.20.0130.0177.04
4.4.10.0030.0307.04
4.4.00.0070.0437.04
4.3.110.0070.0307.04
4.3.100.0200.0207.04
4.3.90.0030.0337.04
4.3.80.0070.0337.04
4.3.70.0130.0177.04
4.3.60.0130.0177.04
4.3.50.0030.0277.04
4.3.40.0070.0407.04
4.3.30.0070.0207.04
4.3.20.0000.0277.04
4.3.10.0030.0237.04
4.3.00.0170.0177.63

preferences:
42.9 ms | 400 KiB | 5 Q