3v4l.org

run code in 300+ PHP versions simultaneously
<?php $start = 'null'; if (!$start) { echo 'null'; } else { echo 'not null'; }

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)
8.3.40.0110.00418.84
8.3.30.0140.00019.24
8.3.20.0080.00020.39
8.3.10.0040.00423.48
8.3.00.0000.00819.01
8.2.170.0140.00722.96
8.2.160.0070.00720.39
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0080.00026.16
8.2.120.0000.00722.22
8.2.110.0050.00519.34
8.2.100.0000.01217.68
8.2.90.0050.00319.22
8.2.80.0030.00617.97
8.2.70.0000.00917.50
8.2.60.0000.00817.93
8.2.50.0000.00818.10
8.2.40.0000.00818.22
8.2.30.0000.00718.11
8.2.20.0070.00017.67
8.2.10.0000.00818.16
8.2.00.0040.00417.67
8.1.270.0120.00023.79
8.1.260.0000.00726.35
8.1.250.0000.00828.09
8.1.240.0090.00022.27
8.1.230.0070.00417.83
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0000.01017.25
8.1.190.0080.00017.13
8.1.180.0040.00418.10
8.1.170.0000.01018.59
8.1.160.0070.00021.93
8.1.150.0050.00218.75
8.1.140.0000.00717.45
8.1.130.0000.00717.81
8.1.120.0020.00517.36
8.1.110.0000.00817.37
8.1.100.0030.00517.52
8.1.90.0000.00717.50
8.1.80.0030.00417.43
8.1.70.0030.00317.41
8.1.60.0000.00917.45
8.1.50.0040.00417.53
8.1.40.0000.00717.53
8.1.30.0030.00517.50
8.1.20.0040.00417.47
8.1.10.0050.00217.52
8.1.00.0020.00517.31
8.0.300.0080.00019.40
8.0.290.0030.00616.75
8.0.280.0000.00718.42
8.0.270.0030.00317.24
8.0.260.0040.00418.42
8.0.250.0000.00616.91
8.0.240.0030.00316.81
8.0.230.0030.00316.97
8.0.220.0020.00516.89
8.0.210.0000.00716.89
8.0.200.0000.00616.91
8.0.190.0040.00416.93
8.0.180.0050.00216.93
8.0.170.0000.00716.79
8.0.160.0030.00316.90
8.0.150.0070.00016.73
8.0.140.0000.00716.81
8.0.130.0050.00013.35
8.0.120.0060.00316.73
8.0.110.0000.00716.79
8.0.100.0000.00716.91
8.0.90.0000.00716.86
8.0.80.0090.01216.86
8.0.70.0040.00416.87
8.0.60.0050.00316.79
8.0.50.0070.00016.75
8.0.30.0100.01017.06
8.0.20.0150.00817.40
8.0.10.0050.00216.89
8.0.00.0080.01016.82
7.4.330.0040.00415.02
7.4.320.0030.00316.49
7.4.300.0030.00316.50
7.4.290.0030.00316.61
7.4.280.0040.00416.52
7.4.270.0030.00316.64
7.4.260.0000.00816.47
7.4.250.0000.00816.52
7.4.240.0030.00316.59
7.4.230.0030.00316.47
7.4.220.0030.02216.53
7.4.210.0030.01316.62
7.4.200.0030.00316.32
7.4.160.0070.01116.40
7.4.150.0120.00617.40
7.4.140.0180.00917.86
7.4.130.0100.00816.49
7.4.120.0080.00816.45
7.4.110.0110.01216.64
7.4.100.0070.01016.48
7.4.90.0110.00616.44
7.4.80.0070.01119.39
7.4.70.0130.01016.44
7.4.60.0060.00916.51
7.4.50.0030.00516.24
7.4.40.0080.00816.45
7.4.30.0080.00816.20
7.4.10.0140.00014.76
7.4.00.0070.01014.82
7.3.330.0000.00513.03
7.3.320.0000.00613.09
7.3.310.0040.00416.25
7.3.300.0000.00716.27
7.3.290.0090.00716.20
7.3.280.0110.00616.23
7.3.270.0130.00317.40
7.3.260.0100.00616.34
7.3.250.0100.01016.48
7.3.240.0040.01816.13
7.3.230.0030.01316.39
7.3.210.0060.01216.48
7.3.200.0090.00919.39
7.3.190.0060.01516.45
7.3.180.0160.00016.41
7.3.170.0070.01416.27
7.3.160.0100.00616.55
7.3.130.0000.01914.81
7.3.120.0080.00914.79
7.3.110.0070.00914.89
7.3.100.0050.01014.71
7.3.90.0060.01014.83
7.3.80.0040.00914.80
7.3.70.0080.00714.56
7.3.60.0040.01314.67
7.3.50.0100.00314.74
7.3.40.0070.00714.73
7.3.30.0020.01414.80
7.3.20.0090.00516.67
7.3.10.0040.01016.44
7.3.00.0030.00816.61
7.2.330.0100.01016.26
7.2.320.0080.01516.61
7.2.310.0070.01016.53
7.2.300.0100.00616.58
7.2.290.0150.00616.38
7.2.260.0000.01815.09
7.2.250.0090.00914.85
7.2.240.0020.01414.63
7.2.230.0090.00614.79
7.2.220.0050.00814.86
7.2.210.0050.00614.98
7.2.200.0080.00814.82
7.2.190.0100.00514.66
7.2.180.0090.00714.76
7.2.170.0060.00814.92
7.2.160.0060.00914.82
7.2.150.0050.01216.83
7.2.140.0030.01016.67
7.2.130.0020.01316.73
7.2.120.0050.01016.78
7.2.110.0050.00816.82
7.2.100.0080.00616.72
7.2.90.0020.01516.87
7.2.80.0070.00816.59
7.2.70.0020.01716.56
7.2.60.0080.00816.88
7.2.50.0070.00616.71
7.2.40.0040.01016.86
7.2.30.0110.00516.79
7.2.20.0100.00516.89
7.2.10.0030.01216.76
7.2.00.0080.00916.66
7.1.330.0030.01115.51
7.1.320.0030.01415.65
7.1.310.0050.00915.63
7.1.300.0040.01115.38
7.1.290.0110.00515.77
7.1.280.0030.01015.54
7.1.270.0070.00715.50
7.1.260.0030.01115.69
7.1.250.0010.01015.85
7.1.240.0030.01315.46
7.1.230.0050.00515.41
7.1.220.0110.00415.44
7.1.210.0030.01015.71
7.1.200.0030.01015.54
7.1.190.0030.01015.73
7.1.180.0060.00915.83
7.1.170.0090.00615.64
7.1.160.0070.00315.28
7.1.150.0100.00315.72
7.1.140.0000.00915.43
7.1.130.0040.01115.61
7.1.120.0030.01015.65
7.1.110.0030.01015.54
7.1.100.0070.00716.77
7.1.90.0080.00615.76
7.1.80.0070.01015.70
7.1.70.0070.00316.45
7.1.60.0060.00817.57
7.1.50.0090.00516.40
7.1.40.0030.01215.68
7.1.30.0040.01115.58
7.1.20.0070.00715.63
7.1.10.0030.00915.62
7.1.00.0030.04018.97
7.0.330.0000.01415.47
7.0.320.0090.00315.35
7.0.310.0050.00315.30
7.0.300.0100.00315.16
7.0.290.0030.01015.55
7.0.280.0100.00315.32
7.0.270.0090.00315.18
7.0.260.0090.00315.42
7.0.250.0060.00615.43
7.0.240.0100.00315.46
7.0.230.0070.00715.39
7.0.220.0040.00415.33
7.0.210.0040.00815.09
7.0.200.0070.00216.08
7.0.190.0030.01015.48
7.0.180.0110.00315.40
7.0.170.0040.01115.41
7.0.160.0040.00715.44
7.0.150.0040.00815.11
7.0.140.0090.03318.64
7.0.130.0040.00715.32
7.0.120.0000.01715.29
7.0.110.0000.00915.49
7.0.100.0060.00615.18
7.0.90.0030.01015.11
7.0.80.0000.01315.51
7.0.70.0000.01415.46
7.0.60.0030.03517.48
7.0.50.0050.03316.63
7.0.40.0030.03916.86
7.0.30.0180.01817.00
7.0.20.0120.04216.95
7.0.10.0070.02917.01
7.0.00.0030.03016.95
5.6.400.0060.00914.54
5.6.390.0060.00614.03
5.6.380.0000.00814.44
5.6.370.0070.00714.27
5.6.360.0100.00713.77
5.6.350.0060.00314.28
5.6.340.0030.01014.24
5.6.330.0030.01314.61
5.6.320.0030.00614.45
5.6.310.0040.01114.54
5.6.300.0000.01414.16
5.6.290.0060.00614.61
5.6.280.0050.04117.73
5.6.270.0070.00714.35
5.6.260.0030.01014.27
5.6.250.0070.00714.45
5.6.240.0030.00614.10
5.6.230.0000.01114.37
5.6.220.0080.00614.36
5.6.210.0050.03017.49
5.6.200.0080.02116.22
5.6.190.0060.04417.46
5.6.180.0180.04317.42
5.6.170.0180.03817.39
5.6.160.0060.04017.50
5.6.150.0090.04216.31
5.6.140.0030.03216.13
5.6.130.0020.03016.14
5.6.120.0070.04717.73
5.6.110.0070.04517.82
5.6.100.0050.02417.52
5.6.90.0110.02617.46
5.6.80.0020.04517.42
5.6.70.2130.02617.16
5.6.60.0070.00714.04
5.6.50.0040.00714.18
5.6.40.0070.00714.28
5.6.30.0040.01114.25
5.6.20.0060.00614.48
5.6.10.0110.00014.39
5.6.00.0000.01414.25
5.5.380.0060.00613.82
5.5.370.0060.00313.98
5.5.360.0110.00413.77
5.5.350.0100.02217.32
5.5.340.0140.02315.99
5.5.330.0080.04317.36
5.5.320.0220.04016.99
5.5.310.0190.03717.21
5.5.300.0080.02116.03
5.5.290.0060.03716.17
5.5.280.0050.04817.60
5.5.270.0080.03917.54
5.5.260.0070.04317.45
5.5.250.0070.04517.39
5.5.240.0170.04017.26
5.5.230.0030.01014.04
5.5.220.0070.00714.20
5.5.210.0060.00613.89
5.5.200.0100.00614.19
5.5.190.0060.00613.92
5.5.180.0060.00614.11
5.5.170.0100.00314.05
5.5.160.0090.00914.01
5.5.150.0090.00914.02
5.5.140.0050.00514.21
5.5.130.0060.00613.96
5.5.120.0000.01314.00
5.5.110.0060.00614.18
5.5.100.0090.00414.18
5.5.90.0040.00813.89
5.5.80.0070.00713.88
5.5.70.0080.01114.37
5.5.60.0030.00913.70
5.5.50.0060.00613.99
5.5.40.0100.00714.06
5.5.30.0140.00013.86
5.5.20.0060.01113.91
5.5.10.0030.01314.21
5.5.00.0030.01214.14
5.4.450.0470.03316.60
5.4.440.0380.04316.66
5.4.430.0400.03316.59
5.4.420.0070.03216.51
5.4.410.0400.03316.54
5.4.400.0380.02816.50
5.4.390.0130.03216.32
5.4.380.0460.02616.42
5.4.370.0100.02816.42
5.4.360.0420.03016.41
5.4.350.0400.03016.28
5.4.340.0060.01912.83
5.4.330.0030.00313.70
5.4.320.0040.02413.07
5.4.310.0040.02313.07
5.4.300.0060.02113.08
5.4.290.0090.01713.07
5.4.280.0080.01513.02
5.4.270.0020.02413.02
5.4.260.0060.02113.02
5.4.250.0060.02213.02
5.4.240.0020.02313.02
5.4.230.0080.01813.02
5.4.220.0020.02613.02
5.4.210.0070.02113.02
5.4.200.0060.02513.02
5.4.190.0060.02113.02
5.4.180.0080.02313.02
5.4.170.0050.02213.02
5.4.160.0020.02413.02
5.4.150.0050.02013.02
5.4.140.0070.02012.86
5.4.130.0040.02112.85
5.4.120.0050.02012.83
5.4.110.0080.01912.83
5.4.100.0040.02212.83
5.4.90.0050.01912.83
5.4.80.0040.02112.83
5.4.70.0030.02112.83
5.4.60.0040.02212.83
5.4.50.0060.02112.83
5.4.40.0050.02512.82
5.4.30.0070.02012.82
5.4.20.0090.01812.82
5.4.10.0080.01712.82
5.4.00.0070.01912.57
5.3.290.0090.03612.80
5.3.280.0050.04112.71
5.3.270.0050.04312.72
5.3.260.0090.03812.72
5.3.250.0060.03612.72
5.3.240.0040.03812.72
5.3.230.0070.03612.71
5.3.220.0080.03912.68
5.3.210.0070.04012.68
5.3.200.0040.03912.68
5.3.190.0110.03312.68
5.3.180.0110.03612.68
5.3.170.0060.03812.67
5.3.160.0060.03712.67
5.3.150.0060.03912.68
5.3.140.0070.04412.66
5.3.130.0090.03512.66
5.3.120.0070.03712.66
5.3.110.0090.04212.66
5.3.100.0030.03812.12
5.3.90.0090.03812.08
5.3.80.0070.03912.07
5.3.70.0060.03712.07
5.3.60.0040.03812.06
5.3.50.0070.03512.00
5.3.40.0040.03812.00
5.3.30.0070.03411.94
5.3.20.0090.03611.72
5.3.10.0070.03311.69
5.3.00.0080.03911.67
5.2.170.0070.0299.18
5.2.160.0030.0319.17
5.2.150.0040.0319.18
5.2.140.0050.0309.17
5.2.130.0050.0299.13
5.2.120.0010.0329.13
5.2.110.0030.0319.14
5.2.100.0070.0289.13
5.2.90.0070.0339.13
5.2.80.0030.0319.13
5.2.70.0030.0319.13
5.2.60.0060.0339.08
5.2.50.0050.0319.05
5.2.40.0080.0309.03
5.2.30.0040.0309.01
5.2.20.0040.0299.00
5.2.10.0040.0288.92
5.2.00.0030.0358.77
5.1.60.0030.0248.06
5.1.50.0060.0308.06
5.1.40.0040.0238.04
5.1.30.0030.0268.39
5.1.20.0030.0268.41
5.1.10.0040.0288.14
5.1.00.0020.0288.13
5.0.50.0040.0216.61
5.0.40.0050.0186.47
5.0.30.0050.0296.29
5.0.20.0030.0196.25
5.0.10.0050.0246.23
5.0.00.0060.0336.22
4.4.90.0030.0154.77
4.4.80.0030.0154.75
4.4.70.0030.0154.76
4.4.60.0050.0134.75
4.4.50.0030.0154.77
4.4.40.0000.0274.71
4.4.30.0040.0144.76
4.4.20.0020.0154.84
4.4.10.0010.0174.85
4.4.00.0050.0224.76
4.3.110.0050.0134.67
4.3.100.0020.0164.67
4.3.90.0040.0164.64
4.3.80.0030.0274.58
4.3.70.0050.0124.63
4.3.60.0010.0174.62
4.3.50.0050.0134.63
4.3.40.0060.0234.54
4.3.30.0040.0153.28
4.3.20.0020.0163.25
4.3.10.0010.0163.21
4.3.00.0030.0307.00

preferences:
51.33 ms | 400 KiB | 5 Q