3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 1; (unset) $a; var_dump($a);

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)
8.3.60.0110.00818.55
8.3.50.0120.00921.07
8.3.40.0120.00318.89
8.3.30.0140.00018.59
8.3.20.0070.00020.04
8.3.10.0030.00621.71
8.3.00.0060.00319.43
8.2.180.0080.01118.04
8.2.170.0120.00322.96
8.2.160.0110.00319.19
8.2.150.0040.00424.18
8.2.140.0130.00324.66
8.2.130.0040.00426.16
8.2.120.0090.00017.50
8.2.110.0050.00522.26
8.2.100.0000.01117.50
8.2.90.0000.00819.14
8.2.80.0030.00517.97
8.2.70.0080.00017.38
8.2.60.0120.00017.54
8.2.50.0050.00318.07
8.2.40.0000.00719.38
8.2.30.0040.00419.78
8.2.20.0000.00817.59
8.2.10.0000.00717.84
8.2.00.0040.00417.84
8.1.280.0150.00625.92
8.1.270.0040.00420.33
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00322.53
8.1.230.0080.00417.42
8.1.220.0050.00317.74
8.1.210.0030.00618.77
8.1.200.0030.00617.10
8.1.190.0040.00417.23
8.1.180.0000.00718.10
8.1.170.0040.00418.36
8.1.160.0000.00721.97
8.1.150.0040.00418.75
8.1.140.0040.00417.31
8.1.130.0040.00417.66
8.1.120.0000.00817.32
8.1.110.0040.00417.30
8.1.100.0000.00817.28
8.1.90.0030.00317.22
8.1.80.0040.00417.20
8.1.70.0000.00817.22
8.1.60.0030.00617.35
8.1.50.0040.00417.38
8.1.40.0060.00317.42
8.1.30.0060.00317.41
8.1.20.0040.00417.49
8.1.10.0040.00417.32
8.1.00.0040.00417.29
8.0.300.0040.00418.77
8.0.290.0030.00316.75
8.0.280.0070.00018.21
8.0.270.0070.00017.07
8.0.260.0030.00317.12
8.0.250.0000.00716.93
8.0.240.0030.00516.96
8.0.230.0000.00716.79
8.0.220.0030.00316.86
8.0.210.0040.00416.80
8.0.200.0000.00616.86
8.0.190.0040.00416.86
8.0.180.0040.00416.88
8.0.170.0000.00716.72
8.0.160.0040.00416.82
8.0.150.0040.00416.76
8.0.140.0040.00416.69
8.0.130.0060.00013.22
8.0.120.0000.00816.79
8.0.110.0080.00016.71
8.0.100.0000.00716.70
8.0.90.0000.00816.64
8.0.80.0090.00616.76
8.0.70.0070.00016.74
8.0.60.0000.00816.80
8.0.50.0040.00416.88
8.0.30.0110.00616.88
8.0.20.0100.01117.40
8.0.10.0040.00417.00
8.0.00.0110.00816.61
7.4.330.0000.00515.08
7.4.320.0000.00616.50
7.4.300.0000.00616.58
7.4.290.0030.00616.57
7.4.280.0000.00716.58
7.4.270.0000.00716.51
7.4.260.0000.00716.49
7.4.250.0000.00716.53
7.4.240.0050.00216.49
7.4.230.0000.00716.61
7.4.220.0090.00616.66
7.4.210.0090.00616.60
7.4.200.0040.00416.46
7.4.160.0070.01016.48
7.4.150.0070.01117.40
7.4.140.0110.01017.86
7.4.130.0060.01316.42
7.4.120.0060.01216.47
7.4.110.0090.00816.36
7.4.100.0100.01316.55
7.4.90.0070.01016.54
7.4.80.0140.00319.39
7.4.70.0140.00416.61
7.4.60.0100.00716.45
7.4.50.0040.00016.32
7.4.40.0150.00316.57
7.4.30.0120.00916.51
7.4.00.0040.01114.75
7.3.330.0030.00313.01
7.3.320.0050.00012.98
7.3.310.0070.00016.07
7.3.300.0000.00616.30
7.3.290.0050.01316.20
7.3.280.0110.00816.21
7.3.270.0060.00917.40
7.3.260.0140.00316.23
7.3.240.0030.01416.20
7.3.230.0030.01416.39
7.3.210.0050.01016.45
7.3.200.0030.01816.25
7.3.190.0120.00616.20
7.3.180.0040.01216.31
7.3.170.0060.00916.29
7.3.160.0100.00716.17
7.2.330.0030.01416.55
7.2.320.0030.02116.30
7.2.310.0070.01016.36
7.2.300.0110.00616.52
7.2.290.0100.01416.29
7.2.60.0100.00316.79
7.2.50.0110.00616.90
7.2.00.0030.01219.18
7.1.200.0030.00715.65
7.1.70.0030.00316.86
7.1.60.0030.01019.17
7.1.50.0140.01834.66
7.1.00.0000.08022.36
7.0.200.0030.01316.84
7.0.60.0200.07319.84
7.0.50.0070.05017.87
7.0.40.0030.04320.14
7.0.30.0270.06720.21
7.0.20.0330.04320.19
7.0.10.0030.06020.20
7.0.00.0070.08319.99
5.6.280.0070.05320.89
5.6.210.0070.08020.68
5.6.200.0030.05718.14
5.6.190.0000.05320.37
5.6.180.3130.04320.56
5.6.170.0270.04720.43
5.6.160.0130.07020.52
5.6.150.0070.08018.12
5.6.140.0000.06718.11
5.6.130.0130.05018.11
5.6.120.0100.04720.98
5.6.110.0130.07720.96
5.6.100.0030.05320.98
5.6.90.0070.08321.09
5.6.80.0070.05320.52
5.6.70.4430.04720.38
5.5.350.0000.08020.46
5.5.340.0000.04317.98
5.5.330.0070.05020.21
5.5.320.0330.04720.28
5.5.310.0300.07020.26
5.5.300.0030.03718.01
5.5.290.0070.07717.96
5.5.280.0030.04020.97
5.5.270.0030.08020.64
5.5.260.0100.07720.96
5.5.250.0070.05720.53
5.5.240.0130.04720.28
5.4.450.0900.05719.10
5.4.440.0800.06719.10
5.4.430.0870.06719.63
5.4.420.0930.05719.48
5.4.410.1070.04319.41
5.4.400.0870.05019.31
5.4.390.0800.05019.30
5.4.380.0770.05019.13
5.4.370.0930.05019.26
5.4.360.0930.05719.16
5.4.350.1030.04019.13
5.4.340.0930.06019.31
5.4.320.1100.04719.29
5.4.310.0970.05019.19
5.4.300.1030.04719.30
5.4.290.0930.05319.19
5.4.280.0970.05019.25
5.4.270.1100.07018.79
5.4.260.1100.05019.13
5.4.250.1130.05319.12
5.4.240.0800.04319.21
5.4.230.0900.04319.25
5.4.220.0630.06718.77
5.4.210.0700.06018.91
5.4.200.0770.05318.91
5.4.190.0670.05319.27
5.4.180.0830.04018.77
5.4.170.0870.06019.14
5.4.160.0770.05018.79
5.4.150.0870.04018.93
5.4.140.0800.06316.22
5.4.130.0730.05016.37
5.4.120.0800.04316.48
5.4.110.0700.05316.45
5.4.100.0730.05016.54
5.4.90.0670.05716.50
5.4.80.0900.05016.43
5.4.70.0130.03716.48
5.4.60.0370.06016.40
5.4.50.0070.06716.32
5.4.40.0070.05716.45
5.4.30.0030.03316.04
5.4.20.0330.04016.36

preferences:
43.47 ms | 401 KiB | 5 Q