3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = NULL; var_dump(isset($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)
8.3.40.0000.01518.65
8.3.30.0070.00718.84
8.3.20.0060.00320.30
8.3.10.0130.00222.64
8.3.00.0110.00618.92
8.2.170.0070.01022.96
8.2.160.0000.01420.53
8.2.150.0080.00324.18
8.2.140.0090.00422.50
8.2.130.0070.00523.28
8.2.120.0100.00719.89
8.2.110.0120.00620.50
8.2.100.0130.00218.22
8.2.90.0050.00819.06
8.2.80.0090.00118.38
8.2.70.0040.00818.15
8.2.60.0060.00318.24
8.2.50.0070.00218.37
8.2.40.0080.00519.88
8.2.30.0060.00218.35
8.2.20.0050.00718.11
8.2.10.0060.00418.17
8.2.00.0050.00618.12
8.1.270.0110.00323.04
8.1.260.0070.00124.15
8.1.250.0080.00425.07
8.1.240.0060.00621.22
8.1.230.0040.00618.82
8.1.220.0070.00218.26
8.1.210.0070.00418.51
8.1.200.0030.00817.77
8.1.190.0060.00417.89
8.1.180.0020.00718.21
8.1.170.0060.00218.43
8.1.160.0080.00220.07
8.1.150.0050.00518.52
8.1.140.0090.00217.81
8.1.130.0040.00618.26
8.1.120.0090.00217.93
8.1.110.0060.00417.88
8.1.100.0090.00217.92
8.1.90.0050.00317.95
8.1.80.0000.00817.88
8.1.70.0030.00517.91
8.1.60.0080.00118.01
8.1.50.0000.00917.93
8.1.40.0040.00417.87
8.1.30.0090.00517.93
8.1.20.0100.00317.93
8.1.10.0110.00617.77
8.1.00.0120.00417.69
8.0.300.0070.00618.23
8.0.290.0100.00517.29
8.0.280.0080.00318.09
8.0.270.0040.00417.44
8.0.260.0110.00817.50
8.0.250.0060.00717.27
8.0.240.0150.00517.27
8.0.230.0110.00817.38
8.0.220.0090.00717.25
8.0.210.0130.00717.32
8.0.200.0120.00117.32
8.0.190.0080.00517.36
8.0.180.0050.00717.26
8.0.170.0180.00217.04
8.0.160.0090.00617.11
8.0.150.0130.00517.08
8.0.140.0130.00517.06
8.0.130.0160.00315.87
8.0.120.0160.00317.09
8.0.110.0120.00217.12
8.0.100.0120.00517.07
8.0.90.0120.00617.09
8.0.80.0110.00817.14
8.0.70.0080.00617.06
8.0.60.0110.00717.08
8.0.50.0130.00417.06
8.0.30.0140.00417.06
8.0.20.0090.00917.34
8.0.10.0120.00517.11
8.0.00.0150.00617.48
7.4.330.0130.00414.51
7.4.320.0200.00116.81
7.4.300.0160.00516.96
7.4.290.0130.00817.01
7.4.280.0160.00416.70
7.4.270.0140.00916.74
7.4.260.0180.00516.70
7.4.250.0120.00816.72
7.4.240.0130.00616.70
7.4.230.0140.00316.78
7.4.220.0170.00716.87
7.4.210.0120.00816.65
7.4.200.0150.00216.72
7.4.190.0110.00416.82
7.4.180.0110.00516.85
7.4.160.0090.00516.79
7.4.150.0120.00317.07
7.4.140.0110.00517.32
7.4.130.0100.00516.56
7.4.120.0080.00716.69
7.4.110.0100.00416.63
7.4.100.0100.00416.68
7.4.90.0080.00616.71
7.4.80.0100.00617.62
7.4.70.0100.00516.54
7.4.60.0080.00816.65
7.4.50.0070.00316.56
7.4.40.0080.00616.47
7.4.30.0060.00816.63
7.4.20.0110.00216.60
7.4.10.0070.00716.19
7.4.00.0080.00715.58
7.3.330.0110.00415.34
7.3.320.0120.00215.35
7.3.310.0100.00516.41
7.3.300.0110.00316.61
7.3.290.0120.00416.51
7.3.280.0110.00716.31
7.3.270.0110.00716.88
7.3.260.0130.00516.41
7.3.250.0110.00616.30
7.3.240.0130.00616.52
7.3.230.0070.01016.52
7.3.220.0150.00416.53
7.3.210.0130.00516.32
7.3.200.0100.00817.52
7.3.190.0150.00316.47
7.3.180.0120.00616.42
7.3.170.0130.00416.73
7.3.160.0170.00316.45
7.3.150.0140.00616.49
7.3.140.0170.00216.49
7.3.130.0130.00715.84
7.3.120.0080.00715.32
7.3.110.0130.00515.69
7.3.100.0130.00415.50
7.3.90.0090.00715.73
7.3.80.0090.00715.50
7.3.70.0110.00515.62
7.3.60.0110.00715.68
7.3.50.0140.00715.60
7.3.40.0130.00615.61
7.3.30.0110.00715.70
7.3.20.0130.00717.59
7.3.10.0140.00617.53
7.3.00.0140.00617.51
7.2.340.0200.00716.66
7.2.330.0200.00416.51
7.2.320.0170.00616.55
7.2.310.0210.00316.54
7.2.300.0190.00616.66
7.2.290.0200.00516.58
7.2.280.0220.00716.71
7.2.270.0200.00716.69
7.2.260.0150.00816.13
7.2.250.0140.00815.80
7.2.240.0130.00715.72
7.2.230.0080.00915.75
7.2.220.0070.01015.83
7.2.210.0110.00515.85
7.2.200.0100.00715.71
7.2.190.0100.00815.73
7.2.180.0110.00715.91
7.2.170.0050.01115.77
7.2.160.0180.00616.14
7.2.150.0170.00618.04
7.2.140.0220.00118.16
7.2.130.0130.00718.20
7.2.120.0180.00718.14
7.2.110.0130.00818.15
7.2.100.0150.00917.98
7.2.90.0200.00518.16
7.2.80.0160.00718.16
7.2.70.0170.00618.00
7.2.60.0180.00717.74
7.2.50.0180.00617.76
7.2.40.0210.00518.00
7.2.30.0120.00817.91
7.2.20.0220.00218.09
7.2.10.0130.00718.17
7.2.00.0100.00718.36
7.1.330.0110.00716.60
7.1.320.0090.00716.79
7.1.310.0110.00416.66
7.1.300.0130.00416.62
7.1.290.0080.00616.65
7.1.280.0070.00816.68
7.1.270.0120.00616.97
7.1.260.0100.00716.57
7.1.250.0180.00516.82
7.1.240.0160.00516.83
7.1.230.0170.00617.02
7.1.220.0110.01016.92
7.1.210.0140.00716.99
7.1.200.0120.00716.67
7.1.190.0180.00716.92
7.1.180.0140.00717.04
7.1.170.0130.00616.98
7.1.160.0130.00517.01
7.1.150.0140.00316.83
7.1.140.0120.00616.71
7.1.130.0100.00616.98
7.1.120.0130.00516.86
7.1.110.0120.00416.83
7.1.100.0130.00917.23
7.1.90.0140.00316.85
7.1.80.0130.00417.02
7.1.70.0090.00916.78
7.1.60.0130.00817.53
7.1.50.0100.00916.91
7.1.40.0150.00516.94
7.1.30.0140.00616.92
7.1.20.0130.00817.00
7.1.10.0110.00716.88
7.1.00.0130.02118.22
7.0.330.0110.00616.61
7.0.320.0090.00616.73
7.0.310.0170.00616.71
7.0.300.0180.00516.52
7.0.290.0140.00516.59
7.0.280.0160.00416.60
7.0.270.0150.00316.68
7.0.260.0130.00716.62
7.0.250.0120.01016.74
7.0.240.0080.00716.67
7.0.230.0090.00716.76
7.0.220.0110.00316.71
7.0.210.0080.00816.77
7.0.200.0100.00616.67
7.0.190.0100.00516.74
7.0.180.0110.00316.77
7.0.170.0110.00516.84
7.0.160.0080.00816.70
7.0.150.0150.00116.75
7.0.140.0070.02418.05
7.0.130.0100.00616.58
7.0.120.0120.00416.80
7.0.110.0110.00516.54
7.0.100.0070.00616.64
7.0.90.0110.00316.63
7.0.80.0080.00516.64
7.0.70.0090.00316.49
7.0.60.0090.02117.90
7.0.50.0070.01316.88
7.0.40.0070.02617.12
7.0.30.0130.02216.88
7.0.20.0160.01417.06
7.0.10.0100.01417.02
7.0.00.0130.01416.98
5.6.400.0090.00515.69
5.6.390.0100.00415.53
5.6.380.0100.00515.49
5.6.370.0080.00715.51
5.6.360.0110.00615.55
5.6.350.0110.00415.49
5.6.340.0080.00615.46
5.6.330.0070.00615.37
5.6.320.0100.00415.44
5.6.310.0120.00415.51
5.6.300.0080.00715.30
5.6.290.0080.00715.40
5.6.280.0080.02216.87
5.6.270.0100.00315.60
5.6.260.0060.00815.55
5.6.250.0080.00515.38
5.6.240.0080.00415.63
5.6.230.0080.00315.61
5.6.220.0100.00415.47
5.6.210.0080.02216.86
5.6.200.0090.02216.25
5.6.190.0080.01216.85
5.6.180.0140.02416.83
5.6.170.0180.02016.88
5.6.160.0080.02416.80
5.6.150.0090.01816.27
5.6.140.0070.02716.23
5.6.130.0100.02216.15
5.6.120.0100.02216.95
5.6.110.0070.02216.93
5.6.100.0070.02616.89
5.6.90.0050.02416.83
5.6.80.0080.02216.67
5.6.70.0100.00315.60
5.6.60.0070.00515.54
5.6.50.0080.00515.41
5.6.40.0110.00315.54
5.6.30.0090.00515.46
5.6.20.0080.00415.51
5.6.10.0060.00515.44
5.6.00.0090.00215.53
5.5.380.0110.00615.47
5.5.370.0120.00615.54
5.5.360.0140.00315.34
5.5.350.0180.02316.53
5.5.340.0100.02316.02
5.5.330.0100.02216.67
5.5.320.0220.01916.54
5.5.310.0110.01616.52
5.5.300.0050.02515.87
5.5.290.0070.02115.94
5.5.280.0070.02616.75
5.5.270.0090.02716.69
5.5.260.0100.02416.69
5.5.250.0100.02416.68
5.5.240.0090.02216.67
5.5.230.0050.00915.38
5.5.220.0060.00815.50
5.5.210.0120.00215.42
5.5.200.0110.00515.15
5.5.190.0090.00815.38
5.5.180.0100.00415.41
5.5.170.0080.00615.27
5.5.160.0100.00715.17
5.5.150.0090.00615.23
5.5.140.0100.00515.14
5.5.130.0080.00615.13
5.5.120.0060.00915.20
5.5.110.0080.00615.24
5.5.100.0100.00515.30
5.5.90.0120.00315.56
5.5.80.0110.01015.34
5.5.70.0160.00615.14
5.5.60.0090.00915.08
5.5.50.0140.00315.35
5.5.40.0100.00515.29
5.5.30.0110.00415.45
5.5.20.0100.00615.22
5.5.10.0090.00715.36
5.5.00.0090.00415.31
5.4.450.1070.01214.40
5.4.440.0490.01614.35
5.4.430.0950.01514.42
5.4.420.0930.00814.34
5.4.410.1120.01514.35
5.4.400.1050.01014.27
5.4.390.0970.01014.26
5.4.380.0990.01114.26
5.4.370.1090.01214.28
5.4.360.1080.01514.26
5.4.350.1040.01114.23
5.4.340.0990.01814.30
5.4.330.0110.00212.67
5.4.320.1040.01514.20
5.4.310.0950.01314.24
5.4.300.1070.01614.31
5.4.290.1060.01014.28
5.4.280.1130.01314.35
5.4.270.0970.01514.28
5.4.260.0960.01314.27
5.4.250.1070.01514.26
5.4.240.1020.01214.27
5.4.230.1040.01414.20
5.4.220.1020.01314.23
5.4.210.1070.01214.18
5.4.200.0910.01314.21
5.4.190.0570.01114.24
5.4.180.0900.01114.17
5.4.170.0960.01314.20
5.4.160.0710.01314.18
5.4.150.0790.01114.15
5.4.140.0820.01313.57
5.4.130.0970.00713.56
5.4.120.0790.00913.57
5.4.110.0920.01113.57
5.4.100.1090.01113.59
5.4.90.1000.01313.59
5.4.80.1040.01013.58
5.4.70.1220.01113.63
5.4.60.1180.01113.55
5.4.50.1170.01013.63
5.4.40.1450.01213.63
5.4.30.1210.01113.54
5.4.20.1210.01113.57
5.4.10.1120.01213.64
5.4.00.1160.01113.43
5.3.290.1320.01613.81
5.3.280.1440.01813.83
5.3.270.1240.01213.79
5.3.260.1130.01713.92
5.3.250.1150.01313.85
5.3.240.1140.01513.81
5.3.230.1240.01613.80
5.3.220.1080.01613.81
5.3.210.1000.01213.79
5.3.200.1240.01613.80
5.3.190.1250.01513.82
5.3.180.1220.01513.80
5.3.170.1540.01413.82
5.3.160.1390.01413.77
5.3.150.1280.01113.74
5.3.140.1500.01613.78
5.3.130.1580.01413.81
5.3.120.1390.01513.76
5.3.110.1420.01313.73
5.3.100.1570.01513.54
5.3.90.1630.01213.59
5.3.80.1550.01813.49
5.3.70.1630.01313.50
5.3.60.1510.01513.64
5.3.50.1460.01713.58
5.3.40.1570.01613.54
5.3.30.1550.01413.53
5.3.20.0050.01713.39
5.3.10.0370.01813.38
5.3.00.1560.01213.44

preferences:
48.23 ms | 400 KiB | 5 Q