3v4l.org

run code in 300+ PHP versions simultaneously
<?php @var_dump(is_null($unde));

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)
8.3.40.0110.00418.64
8.3.30.0040.01118.45
8.3.20.0000.00818.60
8.3.10.0000.00820.92
8.3.00.0040.00423.39
8.2.170.0140.00422.96
8.2.160.0070.00720.50
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0030.00526.16
8.2.120.0050.00319.48
8.2.110.0070.00422.25
8.2.100.0040.00817.84
8.2.90.0000.00719.22
8.2.80.0000.00817.97
8.2.70.0040.00417.50
8.2.60.0030.00617.91
8.2.50.0060.00318.07
8.2.40.0040.00418.21
8.2.30.0000.00819.84
8.2.20.0020.00517.70
8.2.10.0080.00017.63
8.2.00.0030.00517.66
8.1.270.0080.00023.99
8.1.260.0030.00526.35
8.1.250.0060.00328.09
8.1.240.0090.00020.50
8.1.230.0060.00620.93
8.1.220.0050.00318.77
8.1.210.0050.00518.96
8.1.200.0000.00817.23
8.1.190.0050.00317.28
8.1.180.0040.00418.10
8.1.170.0040.00418.43
8.1.160.0040.00418.81
8.1.150.0000.00718.61
8.1.140.0000.00717.29
8.1.130.0000.00717.81
8.1.120.0040.00417.40
8.1.110.0040.00417.36
8.1.100.0000.00817.38
8.1.90.0070.00017.31
8.1.80.0040.00417.43
8.1.70.0000.00717.30
8.1.60.0000.00817.56
8.1.50.0030.00617.38
8.1.40.0000.00817.34
8.1.30.0040.00417.55
8.1.20.0080.00017.55
8.1.10.0080.00017.42
8.1.00.0110.00017.44
8.0.300.0060.00320.03
8.0.290.0040.00416.75
8.0.280.0000.00718.30
8.0.270.0030.00317.16
8.0.260.0040.00416.82
8.0.250.0000.00816.86
8.0.240.0050.00316.82
8.0.230.0030.00316.94
8.0.220.0070.00016.85
8.0.210.0030.00316.75
8.0.200.0030.00316.83
8.0.190.0000.00716.83
8.0.180.0000.00716.95
8.0.170.0030.00616.93
8.0.160.0000.00716.77
8.0.150.0000.00916.83
8.0.140.0060.00616.86
8.0.130.0000.00513.30
8.0.120.0080.00016.90
8.0.110.0030.00516.84
8.0.100.0050.00216.77
8.0.90.0020.00516.83
8.0.80.0060.01216.76
8.0.70.0000.00816.71
8.0.60.0070.00016.82
8.0.50.0040.00416.71
8.0.30.0080.01317.12
8.0.20.0090.00917.40
8.0.10.0030.00317.02
8.0.00.0120.00716.91
7.4.330.0050.00014.59
7.4.320.0030.00516.36
7.4.300.0020.00516.48
7.4.290.0030.00316.41
7.4.280.0000.00716.32
7.4.270.0040.00416.42
7.4.260.0030.00313.12
7.4.250.0030.00616.49
7.4.240.0080.00016.48
7.4.230.0070.00016.34
7.4.220.0090.00816.38
7.4.210.0040.01016.56
7.4.200.0030.00316.31
7.4.190.0030.00616.39
7.4.160.0050.01116.30
7.4.150.0040.01417.40
7.4.140.0100.00817.86
7.4.130.0150.00816.36
7.4.120.0070.00916.36
7.4.110.0040.01416.34
7.4.100.0150.00316.49
7.4.90.0000.02016.44
7.4.80.0120.00619.37
7.4.70.0110.00716.60
7.4.60.0030.01316.24
7.4.50.0060.00316.27
7.4.40.0150.00422.27
7.4.30.0100.01016.24
7.4.10.0000.01814.92
7.4.00.0070.01014.97
7.3.330.0050.00012.94
7.3.320.0060.00013.03
7.3.310.0000.00716.06
7.3.300.0040.00416.10
7.3.290.0070.00716.24
7.3.280.0110.00516.18
7.3.270.0030.01517.40
7.3.260.0140.00818.24
7.3.250.0130.00816.30
7.3.240.0140.00416.53
7.3.230.0090.00916.39
7.3.210.0060.01616.14
7.3.200.0130.00319.39
7.3.190.0060.01216.45
7.3.180.0070.01016.36
7.3.170.0100.00616.27
7.3.160.0070.01016.46
7.3.130.0060.01314.45
7.3.120.0100.00614.61
7.3.110.0160.00314.72
7.3.100.0100.00314.90
7.3.90.0000.01214.61
7.3.80.0100.00714.83
7.3.70.0030.01014.58
7.3.60.0030.01014.81
7.3.50.0060.00614.76
7.3.40.0100.00314.71
7.3.30.0060.01014.75
7.3.20.0060.00916.54
7.3.10.0130.00316.68
7.3.00.0030.01016.73
7.2.330.0110.00616.59
7.2.320.0130.00316.55
7.2.310.0090.00916.35
7.2.300.0060.01116.69
7.2.290.0030.01416.51
7.2.260.0150.00414.64
7.2.250.0040.01515.11
7.2.240.0090.00614.67
7.2.230.0030.01015.06
7.2.220.0040.00415.08
7.2.210.0030.00614.69
7.2.200.0030.01214.88
7.2.190.0090.00614.89
7.2.180.0040.01114.61
7.2.170.0060.00914.90
7.2.160.0030.01214.96
7.2.150.0070.01016.88
7.2.140.0060.00916.82
7.2.130.0040.00817.05
7.2.120.0070.00716.58
7.2.110.0130.00316.96
7.2.100.0000.01416.97
7.2.90.0060.00816.94
7.2.80.0050.00516.97
7.2.70.0070.01116.90
7.2.60.0090.00616.79
7.2.50.0060.01016.79
7.2.40.0030.00716.75
7.2.30.0060.01016.70
7.2.20.0030.01516.60
7.2.10.0040.01116.51
7.2.00.0080.00818.13
7.1.330.0030.01316.05
7.1.320.0030.00615.74
7.1.310.0080.00315.74
7.1.300.0030.00515.75
7.1.290.0060.00615.75
7.1.280.0000.01215.76
7.1.270.0060.00615.71
7.1.260.0060.00615.73
7.1.250.0070.00715.51
7.1.240.0030.00615.41
7.1.230.0030.01015.64
7.1.220.0060.00315.69
7.1.210.0090.00315.77
7.1.200.0060.00615.92
7.1.190.0000.01315.88
7.1.180.0000.01315.77
7.1.170.0030.00915.81
7.1.160.0100.00715.54
7.1.150.0040.01115.50
7.1.140.0000.01715.84
7.1.130.0040.01115.89
7.1.120.0030.01015.47
7.1.110.0110.00015.79
7.1.100.0050.00817.11
7.1.90.0030.00615.89
7.1.80.0030.01015.82
7.1.70.0050.00516.31
7.1.60.0100.01017.58
7.1.50.0080.01016.36
7.1.40.0030.00715.59
7.1.30.0070.00715.84
7.1.20.0040.01115.74
7.1.10.0040.00415.88
7.1.00.0080.02719.15
7.0.330.0070.00315.15
7.0.320.0040.01115.38
7.0.310.0050.00515.54
7.0.300.0070.00315.53
7.0.290.0040.00815.26
7.0.280.0030.00615.39
7.0.270.0030.00915.37
7.0.260.0060.00915.09
7.0.250.0030.00615.41
7.0.240.0070.00715.48
7.0.230.0090.00315.47
7.0.220.0060.00315.44
7.0.210.0000.01015.16
7.0.200.0040.00816.06
7.0.190.0050.00315.48
7.0.180.0080.00415.39
7.0.170.0060.00615.27
7.0.160.0110.00015.44
7.0.150.0030.01015.46
7.0.140.0070.03818.77
7.0.130.0000.00815.55
7.0.120.0040.00715.57
7.0.110.0080.00815.47
7.0.100.0070.00715.46
7.0.90.0100.00315.36
7.0.80.0030.00715.49
7.0.70.0070.04218.60
7.0.60.0090.03518.59
7.0.50.0090.04018.82
7.0.40.0100.03316.70
7.0.30.0080.03816.71
7.0.20.0050.03216.79
7.0.10.0070.04416.80
7.0.00.0080.04316.73
5.6.400.0110.00413.96
5.6.390.0030.01014.23
5.6.380.0100.00314.11
5.6.370.0030.01214.13
5.6.360.0000.01114.60
5.6.350.0030.01014.62
5.6.340.0000.01214.23
5.6.330.0070.00714.28
5.6.320.0030.00914.11
5.6.310.0060.01014.50
5.6.300.0060.00614.36
5.6.290.0040.00714.26
5.6.280.0070.03917.84
5.6.270.0000.01514.24
5.6.260.0120.00313.89
5.6.250.0070.00714.01
5.6.240.0050.00914.45
5.6.230.0030.01013.95
5.6.220.0070.04317.38
5.6.210.0050.04317.31
5.6.200.0050.02817.67
5.6.190.0050.03717.62
5.6.180.0120.04617.61
5.6.170.0050.04517.48
5.6.160.0050.04817.49
5.6.150.0040.04617.56
5.6.140.0080.04317.64
5.6.130.0070.03517.72
5.6.120.0020.04017.72
5.6.110.0120.03917.61
5.6.100.0080.04017.46
5.6.90.0030.04817.58
5.6.80.0050.03917.22
5.6.70.0060.02817.21
5.6.60.0070.03817.20
5.6.50.0100.03917.22
5.6.40.0090.03717.28
5.6.30.0060.03817.33
5.6.20.0050.03817.28
5.6.10.0070.02317.33
5.6.00.0060.03017.21
5.5.380.0000.01414.19
5.5.370.0090.00614.26
5.5.360.0070.04217.44
5.5.350.0030.04917.27
5.5.340.0080.04517.45
5.5.330.0070.04417.40
5.5.320.0070.04417.39
5.5.310.0060.02917.46
5.5.300.0090.04017.45
5.5.290.0060.02617.46
5.5.280.0110.03617.48
5.5.270.0050.04317.48
5.5.260.0090.04317.46
5.5.250.0030.04517.45
5.5.240.0030.03617.21
5.5.230.0070.03317.10
5.5.220.0070.03817.13
5.5.210.0070.04217.21
5.5.200.0100.03817.16
5.5.190.0050.04317.16
5.5.180.0080.04016.97
5.5.170.0030.01314.01
5.5.160.0050.03617.11
5.5.150.0030.03517.13
5.5.140.0040.04517.22
5.5.130.0030.03717.04
5.5.120.0060.02217.01
5.5.110.0050.02917.20
5.5.100.0050.02216.99
5.5.90.0070.02017.13
5.5.80.0020.02417.04
5.5.70.0030.02317.02
5.5.60.0000.02717.15
5.5.50.0030.02516.96
5.5.40.0020.01916.88
5.5.30.0030.02317.08
5.5.20.0080.01716.96
5.5.10.0050.02017.08
5.5.00.0050.01916.95
5.4.450.0030.04514.95
5.4.440.0040.04415.11
5.4.430.0050.03015.15
5.4.420.0050.03815.29
5.4.410.0030.03915.19
5.4.400.0030.04114.67
5.4.390.0050.04015.01
5.4.380.0050.04315.03
5.4.370.0050.03815.03
5.4.360.0050.04014.95
5.4.350.0060.03814.99
5.4.340.0060.03015.04
5.4.330.0030.00510.92
5.4.320.0020.03815.02
5.4.310.0070.03014.84
5.4.300.0030.03814.91
5.4.290.0080.02814.69
5.4.280.0040.02114.64
5.4.270.0050.02814.80
5.4.260.0020.02214.87
5.4.250.0030.02514.73
5.4.240.0030.01814.90
5.4.230.0020.02814.86
5.4.220.0010.02515.03
5.4.210.0020.02114.89
5.4.200.0020.02314.86
5.4.190.0010.01815.00
5.4.180.0060.01614.91
5.4.170.0050.01614.89
5.4.160.0020.02214.88
5.4.150.0020.02114.76
5.4.140.0040.02313.45
5.4.130.0100.01213.61
5.4.120.0030.01513.51
5.4.110.0000.02413.64
5.4.100.0020.02213.56
5.4.90.0040.02013.63
5.4.80.0050.01613.63
5.4.70.0020.02013.54
5.4.60.0050.01713.57
5.4.50.0020.01713.51
5.4.40.0040.01813.60
5.4.30.0030.01713.54
5.4.20.0060.01313.61
5.4.10.0000.02013.54
5.4.00.0040.01713.26
5.3.290.0020.04312.42
5.3.280.0010.02512.33
5.3.270.0000.02312.48
5.3.260.0000.02212.33
5.3.250.0020.02112.33
5.3.240.0030.01812.23
5.3.230.0040.01612.38
5.3.220.0000.01812.30
5.3.210.0060.01812.30
5.3.200.0030.02512.45
5.3.190.0080.01512.45
5.3.180.0020.02012.46
5.3.170.0000.02212.47
5.3.160.0030.02312.35
5.3.150.0050.01712.46
5.3.140.0000.02012.40
5.3.130.0040.01912.36
5.3.120.0000.02112.28
5.3.110.0020.01812.32
5.3.100.0050.01512.22
5.3.90.0020.01712.15
5.3.80.0050.01711.99
5.3.70.0010.01912.13
5.3.60.0080.01512.11
5.3.50.0060.01311.99
5.3.40.0030.01611.96
5.3.30.0050.01511.98
5.3.20.0000.01911.86
5.3.10.0000.02111.86
5.3.00.0020.02011.73
5.2.170.0030.02312.32
5.2.160.0000.02312.32
5.2.150.0000.02312.32
5.2.140.0000.02312.32
5.2.130.0000.02312.32
5.2.120.0000.02312.32
5.2.110.0000.02712.32
5.2.100.0030.02712.32
5.2.90.0000.03012.32
5.2.80.0100.02312.32
5.2.70.0030.03012.32
5.2.60.0030.02312.32
5.2.50.0030.03712.32
5.2.40.0000.04012.32
5.2.30.0000.05312.32
5.2.20.0030.04012.32
5.2.10.0030.03312.32
5.2.00.0100.04312.32
5.1.60.0000.04012.32
5.1.50.0000.05312.32
5.1.40.0030.05312.32
5.1.30.0000.03712.32
5.1.20.0030.05312.32
5.1.10.0000.05312.32
5.1.00.0030.06012.32
5.0.50.0030.02012.32
5.0.40.0000.02312.32
5.0.30.0000.06712.32
5.0.20.0000.02312.32
5.0.10.0000.03012.32
5.0.00.0000.06312.32
4.4.90.0000.01312.32
4.4.80.0000.01312.32
4.4.70.0030.03312.32
4.4.60.0030.03012.32
4.4.50.0000.02712.32
4.4.40.0000.05712.32
4.4.30.0100.02712.32
4.4.20.0070.02712.32
4.4.10.0030.02712.32
4.4.00.0000.05312.32
4.3.110.0030.01712.32
4.3.100.0000.02712.32
4.3.90.0030.03012.32
4.3.80.0070.04312.32
4.3.70.0100.03012.32
4.3.60.0000.03312.32
4.3.50.0000.02312.32
4.3.40.0030.03712.32
4.3.30.0000.02312.32
4.3.20.0000.03712.32
4.3.10.0000.03712.32
4.3.00.0000.03312.32

preferences:
44.82 ms | 400 KiB | 5 Q