3v4l.org

run code in 300+ PHP versions simultaneously
<?php $thing = ""; var_dump(isset($thing));

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)
8.3.60.0140.00716.63
8.3.50.0090.00617.80
8.3.40.0130.00718.46
8.3.30.0070.01418.88
8.3.20.0070.00020.21
8.3.10.0040.00421.81
8.3.00.0080.00019.04
8.2.180.0150.00318.31
8.2.170.0100.00722.96
8.2.160.0100.00322.13
8.2.150.0050.00324.18
8.2.140.0050.00324.66
8.2.130.0100.00726.16
8.2.120.0080.00019.68
8.2.110.0060.00322.25
8.2.100.0030.00918.09
8.2.90.0050.00219.27
8.2.80.0000.00817.97
8.2.70.0090.00017.25
8.2.60.0030.00617.92
8.2.50.0060.00318.07
8.2.40.0040.00418.20
8.2.30.0000.00719.36
8.2.20.0000.00917.67
8.2.10.0040.00417.91
8.2.00.0040.00417.66
8.1.280.0110.00425.92
8.1.270.0060.00318.83
8.1.260.0060.00326.35
8.1.250.0030.00528.09
8.1.240.0000.00923.96
8.1.230.0110.00018.98
8.1.220.0040.00417.74
8.1.210.0030.00718.77
8.1.200.0060.00617.22
8.1.190.0080.00017.23
8.1.180.0040.00418.10
8.1.170.0040.00718.51
8.1.160.0000.00721.93
8.1.150.0040.00418.86
8.1.140.0050.00319.13
8.1.130.0000.00817.68
8.1.120.0040.00417.32
8.1.110.0060.00317.26
8.1.100.0070.00017.25
8.1.90.0020.00517.32
8.1.80.0000.00717.27
8.1.70.0000.00717.36
8.1.60.0060.00317.58
8.1.50.0030.00617.34
8.1.40.0030.00517.45
8.1.30.0030.00617.48
8.1.20.0000.00817.58
8.1.10.0090.00017.43
8.1.00.0040.00417.24
8.0.300.0050.00218.77
8.0.290.0040.00416.63
8.0.280.0000.00718.32
8.0.270.0040.00417.23
8.0.260.0040.00417.10
8.0.250.0030.00316.87
8.0.240.0000.00716.86
8.0.230.0030.00316.81
8.0.220.0080.00016.75
8.0.210.0030.00316.88
8.0.200.0030.00316.88
8.0.190.0030.00416.77
8.0.180.0000.00716.80
8.0.170.0080.00016.84
8.0.160.0030.00316.80
8.0.150.0000.00716.67
8.0.140.0040.00716.81
8.0.130.0000.00613.18
8.0.120.0050.00316.84
8.0.110.0000.00816.84
8.0.100.0040.00416.76
8.0.90.0000.00916.70
8.0.80.0060.00916.77
8.0.70.0000.00716.80
8.0.60.0000.00716.69
8.0.50.0000.00716.75
8.0.30.0090.01517.00
8.0.20.0180.00317.40
8.0.10.0030.00516.81
8.0.00.0080.01016.77
7.4.330.0020.00215.07
7.4.320.0060.00016.52
7.4.300.0000.00616.50
7.4.290.0030.00316.49
7.4.280.0050.00716.41
7.4.270.0000.00816.53
7.4.260.0000.00816.50
7.4.250.0040.00416.49
7.4.240.0030.00316.54
7.4.230.0080.00016.54
7.4.220.0190.00616.43
7.4.210.0040.01216.48
7.4.200.0020.00516.41
7.4.160.0180.00616.38
7.4.150.0110.00817.40
7.4.140.0130.00517.86
7.4.130.0030.01416.37
7.4.120.0090.01016.42
7.4.110.0120.00616.36
7.4.100.0140.00516.45
7.4.90.0130.00316.40
7.4.80.0120.00619.39
7.4.70.0070.01416.45
7.4.60.0130.00316.41
7.4.50.0030.00316.57
7.4.40.0100.00716.12
7.4.30.0120.00616.37
7.4.00.0060.01015.01
7.3.330.0000.00613.05
7.3.320.0000.00513.05
7.3.310.0000.00716.27
7.3.300.0070.00016.12
7.3.290.0060.00316.02
7.3.280.0030.01216.10
7.3.270.0090.01117.40
7.3.260.0100.00716.57
7.3.250.0090.00916.21
7.3.240.0120.00616.36
7.3.230.0000.01716.39
7.3.210.0110.00616.11
7.3.200.0060.01319.39
7.3.190.0060.00916.04
7.3.180.0090.00616.11
7.3.170.0040.01516.33
7.3.160.0030.01416.25
7.3.10.0090.00516.38
7.3.00.0120.00216.50
7.2.330.0060.01216.52
7.2.320.0030.01416.48
7.2.310.0120.00916.38
7.2.300.0070.01116.39
7.2.290.0060.01016.23
7.2.130.0110.00216.33
7.2.120.0060.00716.55
7.2.110.0040.01016.44
7.2.100.0070.00816.26
7.2.90.0070.00516.45
7.2.80.0090.00216.49
7.2.70.0080.00916.46
7.2.60.0080.00516.41
7.2.50.0100.00316.74
7.2.40.0070.00316.41
7.2.30.0080.00816.56
7.2.20.0070.00916.67
7.2.10.0070.00716.68
7.2.00.0070.00817.43
7.1.250.0060.00815.60
7.1.200.0030.01015.13
7.1.100.0030.01018.11
7.1.70.0030.01216.90
7.1.60.0040.00716.95
7.1.50.0080.00316.77
7.1.00.0030.07722.57
7.0.200.0090.00916.63
7.0.140.0030.05322.07
7.0.60.0100.08019.77
7.0.50.0000.04317.83
7.0.40.0100.04320.27
7.0.30.0200.04720.04
7.0.20.0200.04320.21
7.0.10.0030.04320.20
7.0.00.0100.07720.18
5.6.280.0030.07020.88
5.6.210.0200.06720.66
5.6.200.0100.03318.18
5.6.190.0030.08720.45
5.6.180.0300.07320.77
5.6.170.0230.04020.50
5.6.160.0130.07320.52
5.6.150.0030.06318.19
5.6.140.0070.08018.12
5.6.130.0100.07018.18
5.6.120.0070.06721.02
5.6.110.0070.08720.96
5.6.100.0130.06321.00
5.6.90.0030.06720.96
5.6.80.0100.07720.36
5.5.350.0300.07020.46
5.5.340.0000.04317.95
5.5.330.0130.06020.30
5.5.320.0100.07020.13
5.5.310.0230.05020.41
5.5.300.0030.05717.90
5.5.290.0100.07718.01
5.5.280.0170.07320.87
5.5.270.0030.04320.72
5.5.260.0100.06320.95
5.5.250.0070.04320.68
5.5.240.0000.07020.03
5.4.450.0400.06019.25
5.4.440.0970.07019.63
5.4.430.0900.04719.62
5.4.420.0900.04719.41
5.4.410.0070.05719.52
5.4.400.0900.05018.81
5.4.390.1030.05318.77
5.4.380.0870.05018.59
5.4.370.0970.06018.46
5.4.360.0730.05318.72
5.4.350.1070.05318.63
5.4.340.0900.05318.72
5.4.320.1030.06718.61
5.4.310.1100.05318.77
5.4.300.1100.06018.59
5.4.290.0830.06018.78
5.4.280.1000.07318.61
5.4.270.1170.05318.43
5.4.260.0970.07318.77
5.4.250.0830.06318.45
5.4.240.0930.06018.54
5.4.230.0970.06318.49
5.4.220.0830.08018.71
5.4.210.0870.05018.77
5.4.200.0600.06016.45
5.4.190.0770.06318.59
5.4.180.0900.05718.67
5.4.170.0770.05718.59
5.4.160.0900.07018.72
5.4.150.0870.06018.59
5.4.140.0730.06316.25
5.4.130.0700.05316.26
5.4.120.1000.05016.19
5.4.110.1000.05016.25
5.4.100.0900.03716.16
5.4.90.0700.05716.30
5.4.80.0870.05716.29
5.4.70.0630.06016.19
5.4.60.0770.05016.04
5.4.50.0870.04016.27
5.4.40.0830.07716.27
5.4.30.0830.04716.11
5.4.20.0730.06316.13
5.4.10.1000.07716.06
5.4.00.0870.04315.50
5.3.290.0900.06314.57
5.3.280.0900.05714.66
5.3.270.0930.07014.55
5.3.260.0970.07014.59
5.3.250.0730.05714.55
5.3.240.0730.05014.51
5.3.230.0770.07014.67
5.3.220.0630.06014.55
5.3.210.0730.05714.51
5.3.200.0800.07014.55
5.3.190.0930.05714.56
5.3.180.0770.06014.56
5.3.170.0830.07014.46
5.3.160.1000.04714.63
5.3.150.0930.07014.47
5.3.140.1100.04014.44
5.3.130.1000.05314.49
5.3.120.0870.06314.52
5.3.110.0900.05714.63
5.3.100.0970.05714.01
5.3.90.1070.04013.95
5.3.80.1070.04713.96
5.3.70.0670.06714.02
5.3.60.0700.05714.10
5.3.50.0600.06313.93
5.3.40.0770.06014.04
5.3.30.1000.05713.82
5.3.20.1030.06313.79
5.3.10.0770.06013.65
5.3.00.0830.05713.66
5.2.170.0600.04311.27
5.2.160.0730.05011.07
5.2.150.0500.05311.17
5.2.140.0830.05011.14
5.2.130.0630.04311.08
5.2.120.0630.04311.14
5.2.110.0570.04711.01
5.2.100.0930.04011.07
5.2.90.0730.04011.14
5.2.80.0800.04011.23
5.2.70.0730.04711.08
5.2.60.0800.04311.05
5.2.50.0630.05711.05
5.2.40.0570.05710.93
5.2.30.0500.03710.92
5.2.20.0570.04711.07
5.2.10.0570.04010.89
5.2.00.0630.04310.80
5.1.60.0630.03310.02
5.1.50.0430.04310.02
5.1.40.0570.04310.09
5.1.30.0700.04310.38
5.1.20.0400.04710.48
5.1.10.0400.03710.09
5.1.00.0630.04010.11
5.0.50.0270.0338.55
5.0.40.0230.0478.45
5.0.30.0270.0538.28
5.0.20.0270.0238.27
5.0.10.0370.0378.36
5.0.00.0230.0538.22
4.4.90.0270.0335.88
4.4.80.0230.0205.89
4.4.70.0200.0275.84
4.4.60.0300.0375.90
4.4.50.0230.0335.91
4.4.40.0300.0435.90
4.4.30.0200.0305.86
4.4.20.0170.0235.93
4.4.10.0130.0276.00
4.4.00.0330.0335.95
4.3.110.0200.0235.84
4.3.100.0070.0275.84
4.3.90.0300.0135.91
4.3.80.0270.0375.79
4.3.70.0330.0175.78
4.3.60.0300.0205.87
4.3.50.0300.0235.77
4.3.40.0200.0375.82
4.3.30.0100.0204.54
4.3.20.0130.0304.51
4.3.10.0130.0304.55
4.3.00.0130.0209.37

preferences:
41.29 ms | 400 KiB | 5 Q