3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(1 => null); var_dump(isset($a[1]));

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)
8.3.60.0110.00418.18
8.3.50.0110.01121.89
8.3.40.0140.00318.67
8.3.30.0070.00719.09
8.3.20.0040.00420.34
8.3.10.0040.00423.51
8.3.00.0000.00819.38
8.2.180.0070.00716.75
8.2.170.0100.00322.96
8.2.160.0090.00420.43
8.2.150.0080.00024.18
8.2.140.0030.00524.66
8.2.130.0040.00426.16
8.2.120.0040.00421.98
8.2.110.0030.00620.51
8.2.100.0030.00717.75
8.2.90.0070.00018.96
8.2.80.0040.00417.97
8.2.70.0040.00417.50
8.2.60.0000.00818.03
8.2.50.0050.00318.07
8.2.40.0050.00519.88
8.2.30.0060.00317.98
8.2.20.0030.00517.67
8.2.10.0040.00417.86
8.2.00.0040.00417.59
8.1.280.0070.01025.92
8.1.270.0080.00023.79
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0060.00323.98
8.1.230.0070.00317.42
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0060.00317.23
8.1.190.0060.00317.23
8.1.180.0070.00018.10
8.1.170.0020.00518.45
8.1.160.0050.00221.82
8.1.150.0050.00218.72
8.1.140.0000.00717.41
8.1.130.0000.00717.88
8.1.120.0070.00017.30
8.1.110.0030.00517.41
8.1.100.0000.00717.28
8.1.90.0040.00417.42
8.1.80.0000.00717.24
8.1.70.0000.00817.25
8.1.60.0060.00317.40
8.1.50.0050.00517.48
8.1.40.0040.00417.37
8.1.30.0000.00817.40
8.1.20.0040.00417.55
8.1.10.0080.00017.48
8.1.00.0000.00717.34
8.0.300.0040.00418.77
8.0.290.0000.00716.75
8.0.280.0050.00318.44
8.0.270.0070.00017.09
8.0.260.0000.00717.05
8.0.250.0030.00316.79
8.0.240.0000.00716.90
8.0.230.0000.00716.76
8.0.220.0030.00516.85
8.0.210.0070.00016.70
8.0.200.0000.00616.79
8.0.190.0000.00816.86
8.0.180.0070.00016.84
8.0.170.0040.00416.86
8.0.160.0000.00716.90
8.0.150.0000.00716.75
8.0.140.0070.00016.80
8.0.130.0030.00313.21
8.0.120.0050.00216.79
8.0.110.0000.00716.84
8.0.100.0000.00716.86
8.0.90.0000.00816.89
8.0.80.0100.00616.74
8.0.70.0030.00616.77
8.0.60.0000.00716.73
8.0.50.0030.00316.80
8.0.30.0110.01117.04
8.0.20.0160.00517.40
8.0.10.0000.00716.83
8.0.00.0100.00816.52
7.4.330.0020.00215.00
7.4.320.0030.00316.44
7.4.300.0030.00316.54
7.4.290.0070.00016.33
7.4.280.0000.00816.52
7.4.270.0030.00316.54
7.4.260.0060.00316.54
7.4.250.0040.00416.32
7.4.240.0070.00016.56
7.4.230.0030.00316.64
7.4.220.0080.00816.56
7.4.210.0070.01016.47
7.4.200.0000.00716.47
7.4.160.0060.00916.21
7.4.150.0090.00917.40
7.4.140.0070.01217.86
7.4.130.0080.00816.37
7.4.120.0100.00916.41
7.4.110.0140.01016.28
7.4.100.0130.00416.36
7.4.90.0030.01316.37
7.4.80.0110.00719.39
7.4.70.0110.00516.43
7.4.60.0110.00716.23
7.4.50.0050.00016.25
7.4.40.0090.01216.23
7.4.30.0130.00716.39
7.4.00.0080.00814.80
7.3.330.0060.00012.95
7.3.320.0050.00013.18
7.3.310.0030.00416.05
7.3.300.0040.00416.17
7.3.290.0070.00716.29
7.3.280.0090.01016.21
7.3.270.0140.00417.40
7.3.260.0130.00316.54
7.3.240.0080.00816.13
7.3.230.0070.01016.39
7.3.210.0100.00616.04
7.3.200.0150.00619.39
7.3.190.0060.00916.08
7.3.180.0040.01216.52
7.3.170.0090.00616.27
7.3.160.0120.00316.13
7.3.120.0100.00714.31
7.3.110.0080.00814.91
7.3.100.0040.00714.64
7.3.90.0130.00314.79
7.3.80.0100.00714.58
7.3.70.0060.00614.61
7.3.60.0090.00314.63
7.3.50.0090.00614.47
7.3.40.0040.00714.52
7.3.30.0030.00914.75
7.3.20.0030.00716.77
7.3.10.0040.01116.75
7.3.00.0060.00916.52
7.2.330.0100.00716.27
7.2.320.0140.00616.38
7.2.310.0090.00916.75
7.2.300.0090.00916.15
7.2.290.0120.00616.64
7.2.250.0030.01314.91
7.2.240.0070.01014.87
7.2.230.0060.01214.52
7.2.220.0040.00814.91
7.2.210.0070.01015.16
7.2.200.0070.00315.02
7.2.190.0060.00614.93
7.2.180.0000.00914.98
7.2.170.0040.00814.76
7.2.110.0320.01016.49
7.2.00.0090.00919.08
7.1.330.0000.01415.84
7.1.320.0080.00415.66
7.1.310.0170.00015.77
7.1.300.0030.01015.32
7.1.290.0070.00315.59
7.1.280.0030.01315.80
7.1.270.0030.00615.75
7.1.260.0060.00615.89
7.1.100.0070.00318.30
7.1.70.0000.00816.90
7.1.60.0060.01319.32
7.1.50.0040.01516.73
7.1.00.0130.06722.54
7.0.200.0060.00316.79
7.0.140.0030.07322.11
7.0.60.0130.08019.78
7.0.50.0070.08317.83
7.0.40.0070.08719.92
7.0.30.0500.07320.34
7.0.20.0230.04720.04
7.0.10.0230.07720.21
7.0.00.0000.04320.13
5.6.280.0030.07320.77
5.6.210.0100.03320.70
5.6.200.0130.08018.14
5.6.190.0070.04320.27
5.6.180.0270.08020.43
5.6.170.0370.05720.41
5.6.160.0000.09320.38
5.6.150.0100.06318.18
5.6.140.0030.08718.18
5.6.130.0030.04018.07
5.6.120.0070.08320.79
5.6.110.0070.08720.98
5.6.100.0000.04720.95
5.6.90.0130.08021.02
5.6.80.0130.04720.37
5.5.350.0130.08020.40
5.5.340.0030.05317.88
5.5.330.0030.04320.29
5.5.320.0370.07720.50
5.5.310.0230.08320.41
5.5.300.0030.05017.98
5.5.290.0170.07317.90
5.5.280.0030.08020.88
5.5.270.0170.07320.95
5.5.260.0070.04020.86
5.5.250.0070.05720.79
5.5.240.0170.03720.36
5.4.450.0630.05319.47
5.4.440.0800.05319.27
5.4.430.0700.04319.54
5.4.420.0630.00019.48
5.4.410.0630.00019.04
5.4.400.0670.00019.05
5.4.390.0630.00019.13
5.4.380.0630.00019.18
5.4.370.0630.00019.13
5.4.360.0630.00019.17
5.4.350.0630.00019.05
5.4.340.0090.03111.97
5.4.320.0050.03712.45
5.4.310.0050.03912.45
5.4.300.0080.03512.45
5.4.290.0090.04112.45
5.4.280.0060.05212.34
5.4.270.0070.03712.35
5.4.260.0070.03612.34
5.4.250.0100.03412.34
5.4.240.0060.03412.35
5.4.230.0060.03712.34
5.4.220.0070.03612.34
5.4.210.0060.03512.34
5.4.200.0080.03512.34
5.4.190.0090.03712.33
5.4.180.0050.03712.33
5.4.170.0050.03612.35
5.4.160.0110.03012.34
5.4.150.0090.03412.34
5.4.140.0060.04012.02
5.4.130.0090.03212.01
5.4.120.0060.03411.96
5.4.110.0080.03311.96
5.4.100.0040.03711.96
5.4.90.0090.03711.96
5.4.80.0110.03111.96
5.4.70.0050.03411.96
5.4.60.0070.03311.96
5.4.50.0090.03211.96
5.4.40.0070.03311.95
5.4.30.0100.03011.95
5.4.20.0080.03211.95
5.4.10.0030.03611.95
5.4.00.0040.04411.43
5.3.290.0070.04212.80
5.3.280.0120.03412.71
5.3.270.0060.03912.72
5.3.260.0060.03912.72
5.3.250.0080.03512.72
5.3.240.0060.03712.71
5.3.230.0060.03812.71
5.3.220.0080.04312.68
5.3.210.0060.03812.68
5.3.200.0050.03612.68
5.3.190.0040.04212.67
5.3.180.0030.03812.67
5.3.170.0070.03912.67
5.3.160.0040.03712.67
5.3.150.0100.04412.67
5.3.140.0050.04512.66
5.3.130.0070.03712.66
5.3.120.0060.03812.66
5.3.110.0060.03812.66
5.3.100.0060.03912.11
5.3.90.0060.03612.09
5.3.80.0080.03312.07
5.3.70.0030.04212.07
5.3.60.0040.03812.06
5.3.50.0040.03712.00
5.3.40.0080.03312.00
5.3.30.0060.03411.94
5.3.20.0080.03311.72
5.3.10.0040.03611.69
5.3.00.0100.04011.67
5.2.170.0040.0359.18
5.2.160.0020.0329.18
5.2.150.0040.0329.18
5.2.140.0030.0329.17
5.2.130.0030.0329.14
5.2.120.0030.0309.13
5.2.110.0070.0289.14
5.2.100.0030.0329.14
5.2.90.0060.0279.13
5.2.80.0020.0319.13
5.2.70.0070.0279.13
5.2.60.0040.0309.08
5.2.50.0060.0299.05
5.2.40.0060.0299.03
5.2.30.0060.0369.00
5.2.20.0060.0339.00
5.2.10.0050.0308.92
5.2.00.0040.0378.77
5.1.60.0030.0248.06
5.1.50.0040.0248.06
5.1.40.0040.0248.04
5.1.30.0100.0298.39
5.1.20.0060.0248.41
5.1.10.0050.0258.13
5.1.00.0070.0268.13
5.0.50.0050.0236.61
5.0.40.0070.0206.47
5.0.30.0040.0346.29
5.0.20.0030.0196.26
5.0.10.0060.0176.23
5.0.00.0050.0286.23
4.4.90.0020.0164.78
4.4.80.0030.0184.76
4.4.70.0030.0194.75
4.4.60.0020.0214.75
4.4.50.0030.0194.77
4.4.40.0020.0264.71
4.4.30.0040.0184.75
4.4.20.0020.0164.85
4.4.10.0030.0184.85
4.4.00.0040.0264.76
4.3.110.0040.0154.67
4.3.100.0020.0194.66
4.3.90.0030.0144.63
4.3.80.0030.0244.59
4.3.70.0000.0184.63
4.3.60.0060.0114.63
4.3.50.0030.0194.63
4.3.40.0060.0244.54
4.3.30.0040.0173.28
4.3.20.0030.0193.25
4.3.10.0010.0173.21
4.3.00.0230.0177.30

preferences:
47.95 ms | 400 KiB | 5 Q