3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = ["a" => false, "b" => NULL]; var_dump($var); echo count($var); echo isset($var["b"]);// FALSE?

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)
8.3.60.0040.01116.38
8.3.50.0110.00822.06
8.3.40.0070.00718.84
8.3.30.0100.00319.06
8.3.20.0070.00020.39
8.3.10.0040.00423.56
8.3.00.0000.01117.25
8.2.180.0070.01416.32
8.2.170.0070.01422.96
8.2.160.0100.00720.57
8.2.150.0070.00024.18
8.2.140.0050.00324.66
8.2.130.0000.00826.16
8.2.120.0040.00422.21
8.2.110.0090.00020.52
8.2.100.0110.00317.91
8.2.90.0000.00919.35
8.2.80.0060.00317.97
8.2.70.0040.00417.49
8.2.60.0030.00618.04
8.2.50.0100.00018.07
8.2.40.0040.00418.28
8.2.30.0080.00018.00
8.2.20.0000.00817.80
8.2.10.0070.00018.04
8.2.00.0070.00317.66
8.1.280.0040.01125.92
8.1.270.0040.00423.79
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0070.00323.92
8.1.230.0000.01020.90
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0080.00017.23
8.1.190.0080.00017.53
8.1.180.0060.00318.10
8.1.170.0090.00018.65
8.1.160.0000.00722.02
8.1.150.0040.00718.71
8.1.140.0060.00317.46
8.1.130.0040.00417.83
8.1.120.0090.00017.52
8.1.110.0050.00317.42
8.1.100.0080.00017.32
8.1.90.0040.00417.46
8.1.80.0000.00717.30
8.1.70.0070.00017.33
8.1.60.0060.00617.62
8.1.50.0040.00417.55
8.1.40.0060.00317.56
8.1.30.0030.00617.47
8.1.20.0000.00717.72
8.1.10.0040.00417.48
8.1.00.0000.00717.38
8.0.300.0050.00318.77
8.0.290.0040.00417.18
8.0.280.0000.00818.54
8.0.270.0040.00417.27
8.0.260.0060.00017.26
8.0.250.0030.00316.83
8.0.240.0070.00016.92
8.0.230.0020.00516.79
8.0.220.0000.00716.86
8.0.210.0000.00716.89
8.0.200.0000.00816.72
8.0.190.0030.00316.90
8.0.180.0030.00616.84
8.0.170.0000.00816.81
8.0.160.0040.00416.94
8.0.150.0040.00416.83
8.0.140.0000.00816.78
8.0.130.0060.00013.31
8.0.120.0000.00716.80
8.0.110.0040.00416.87
8.0.100.0060.00316.80
8.0.90.0000.00717.01
8.0.80.0070.00816.96
8.0.70.0040.00417.01
8.0.60.0050.00216.85
8.0.50.0050.00316.93
8.0.30.0090.01217.12
8.0.20.0090.01317.40
8.0.10.0060.00317.02
8.0.00.0090.01216.74
7.4.330.0020.00215.09
7.4.320.0030.00316.50
7.4.300.0000.00616.64
7.4.290.0030.00316.50
7.4.280.0100.00016.45
7.4.270.0070.00016.46
7.4.260.0000.00616.63
7.4.250.0040.00416.46
7.4.240.0030.00416.58
7.4.230.0040.00416.61
7.4.220.0090.00616.66
7.4.210.0060.00916.62
7.4.200.0000.00716.59
7.4.190.0070.00016.41
7.4.160.0060.01216.51
7.4.150.0040.01317.40
7.4.140.0120.00917.86
7.4.130.0100.00716.60
7.4.120.0100.00816.56
7.4.110.0110.00816.62
7.4.100.0080.00816.64
7.4.90.0170.00316.45
7.4.80.0090.00919.39
7.4.70.0090.00616.54
7.4.60.0100.00716.48
7.4.50.0080.00016.20
7.4.40.0030.01222.77
7.4.30.0160.00016.58
7.4.00.0060.01014.82
7.3.330.0030.00313.18
7.3.320.0000.00513.13
7.3.310.0050.00516.16
7.3.300.0040.00416.20
7.3.290.0070.00816.26
7.3.280.0060.01016.21
7.3.270.0110.00617.40
7.3.260.0040.01216.41
7.3.250.0120.00516.18
7.3.240.0140.00316.16
7.3.230.0130.00716.39
7.3.210.0060.01216.45
7.3.200.0000.02019.39
7.3.190.0120.01216.45
7.3.180.0060.00916.30
7.3.170.0040.01116.27
7.3.160.0030.01216.25
7.3.120.0030.01414.85
7.2.330.0180.00316.55
7.2.320.0060.01216.62
7.2.310.0110.01116.62
7.2.300.0090.00616.71
7.2.290.0130.00316.37
7.2.60.0000.01516.55
7.1.200.0030.01215.74
7.1.70.0040.00917.06
7.1.60.0070.01419.46
7.1.50.0030.01716.50
7.1.00.0000.08022.45
7.0.200.0000.00816.41
7.0.140.0100.06721.96
7.0.60.0100.05021.73
7.0.50.0070.07317.89
7.0.40.0170.05020.04
7.0.30.0530.07020.17
7.0.20.0300.07320.00
7.0.10.0230.06720.09
7.0.00.0130.06720.16
5.6.280.0000.07721.09
5.6.210.0000.04320.50
5.6.200.0030.06018.18
5.6.190.0130.08020.48
5.6.180.0300.07020.39
5.6.170.0230.04720.33
5.6.160.0130.06320.49
5.6.150.0070.05018.21
5.6.140.0100.07718.20
5.6.130.0100.07718.13
5.6.120.0070.07320.98
5.6.110.0100.05320.98
5.6.100.0070.03721.14
5.6.90.0070.06720.97
5.6.80.0030.05720.24
5.5.350.3100.03720.41
5.5.340.0030.03717.95
5.5.330.0070.08020.56
5.5.320.0300.08020.37
5.5.310.0200.04020.41
5.5.300.0030.05317.98
5.5.290.0030.04317.92
5.5.280.0030.09020.67
5.5.270.0100.08320.86
5.5.260.0030.04020.75
5.5.250.0070.06020.77
5.5.240.0170.06320.34
5.4.450.1000.05319.50
5.4.440.0600.06019.22
5.4.430.0670.07319.41
5.4.420.0600.00019.67
5.4.410.0170.05318.93
5.4.400.0270.04718.75
5.4.390.0330.04718.68
5.4.380.0370.04718.73
5.4.370.0030.05718.68
5.4.360.0070.05018.72
5.4.350.0060.04211.97
5.4.340.0120.03311.96
5.4.320.0050.04712.45
5.4.310.0060.04712.45
5.4.300.0080.03812.45
5.4.290.0140.09012.43
5.4.280.0120.05712.33
5.4.270.0080.04712.33
5.4.260.0090.03812.33
5.4.250.0060.04012.33
5.4.240.0170.09212.33
5.4.230.0160.04512.32
5.4.220.0140.04012.32
5.4.210.0080.05712.32
5.4.200.0090.05412.32
5.4.190.0050.05712.32
5.4.180.0200.05512.32
5.4.170.0080.04412.33
5.4.160.0130.05312.32
5.4.150.0080.04012.32
5.4.140.0090.03912.01
5.4.130.0100.03912.00
5.4.120.0100.08311.95
5.4.110.0070.05511.95
5.4.100.0050.05311.95
5.4.90.0090.05511.95
5.4.80.0380.10111.95
5.4.70.0110.04011.94
5.4.60.0100.04811.94
5.4.50.0070.05111.94
5.4.40.0490.05511.93
5.4.30.0110.06311.93
5.4.20.0130.06011.93
5.4.10.0120.04811.93
5.4.00.0160.06611.42
5.3.290.0130.04612.80
5.3.280.0300.08012.71
5.3.270.0150.07412.72
5.3.260.0150.07412.72
5.3.250.0130.06012.72
5.3.240.0280.10112.72
5.3.230.0200.06912.71
5.3.220.0120.06312.68
5.3.210.0260.10312.68
5.3.200.0130.05812.68
5.3.190.0100.06412.68
5.3.180.0360.14412.67
5.3.170.0130.05412.67
5.3.160.0080.06112.67
5.3.150.0200.08112.67
5.3.140.0160.08412.66
5.3.130.0250.08712.66
5.3.120.0230.07012.66
5.3.110.0400.08712.66
5.3.100.0340.06512.12
5.3.90.0190.07212.08
5.3.80.0070.05712.07
5.3.70.0240.09312.07
5.3.60.0130.07412.06
5.3.50.0110.04712.00
5.3.40.0140.05612.00
5.3.30.0180.09411.95
5.3.20.0160.05711.72
5.3.10.0120.06211.70
5.3.00.0050.06811.68
5.2.170.0130.0629.18
5.2.160.0060.0669.18
5.2.150.0170.0719.18
5.2.140.0090.0519.18
5.2.130.0130.0449.14
5.2.120.0220.0749.14
5.2.110.0190.0549.14
5.2.100.0170.0689.14
5.2.90.0200.0819.14
5.2.80.0070.0499.14
5.2.70.0130.0629.14
5.2.60.0200.0499.09
5.2.50.0130.0729.06
5.2.40.0060.0389.03
5.2.30.0090.0469.01
5.2.20.0110.0509.00
5.2.10.0100.0408.93
5.2.00.0100.0458.78
5.1.60.0210.0898.07
5.1.50.0060.0308.07
5.1.40.0100.0408.05
5.1.30.0220.0748.40
5.1.20.0120.0398.42
5.1.10.0080.0358.14
5.1.00.0040.0318.14
5.0.50.0100.0236.62
5.0.40.0150.0276.48
5.0.30.0120.0766.29
5.0.20.0070.0356.27
5.0.10.0090.0366.24
5.0.00.0070.0576.23
4.4.90.0050.0344.78
4.4.80.0080.0464.75
4.4.70.0080.0384.76
4.4.60.0120.0384.75
4.4.50.0060.0234.77
4.4.40.0130.0494.70
4.4.30.0080.0254.75
4.4.20.0060.0394.84
4.4.10.0050.0174.85
4.4.00.0040.0274.76
4.3.110.0030.0174.67
4.3.100.0020.0184.67
4.3.90.0110.0184.63
4.3.80.0040.0474.58
4.3.70.0110.0474.63
4.3.60.0040.0374.62
4.3.50.0080.0334.63
4.3.40.0110.0464.54
4.3.30.0130.0343.29
4.3.20.0040.0233.26
4.3.10.0040.0333.22
4.3.00.0000.04013.47

preferences:
35.51 ms | 401 KiB | 5 Q