3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = ["a" => false, "b" => NULL]; var_dump($var); foreach($var AS $key=>$val){ echo isset($var[$key]) ? "T":"F"; echo NULL === $val ? "T" : "F"; }

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)
8.3.70.0150.00318.56
8.3.60.0110.00316.50
8.3.50.0080.00822.05
8.3.40.0080.00618.77
8.3.30.0110.00619.17
8.3.20.0070.00020.18
8.3.10.0080.00023.52
8.3.00.0060.00317.50
8.2.180.0060.00918.16
8.2.170.0090.00622.96
8.2.160.0070.01120.43
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0080.00022.21
8.2.110.0060.00321.03
8.2.100.0080.00617.78
8.2.90.0030.00718.03
8.2.80.0090.00017.97
8.2.70.0000.00817.47
8.2.60.0060.00318.03
8.2.50.0040.00418.07
8.2.40.0040.00417.97
8.2.30.0060.00318.11
8.2.20.0080.00017.66
8.2.10.0040.00418.20
8.2.00.0060.00317.63
8.1.280.0040.01125.92
8.1.270.0080.00022.06
8.1.260.0030.00626.35
8.1.250.0080.00028.09
8.1.240.0070.00321.98
8.1.230.0110.00020.92
8.1.220.0000.00817.74
8.1.210.0030.00619.03
8.1.200.0030.00617.38
8.1.190.0040.00417.50
8.1.180.0050.00318.10
8.1.170.0000.00718.60
8.1.160.0040.00421.88
8.1.150.0050.00518.55
8.1.140.0060.00317.36
8.1.130.0070.00017.82
8.1.120.0000.00917.45
8.1.110.0070.00017.46
8.1.100.0060.00317.33
8.1.90.0040.00417.42
8.1.80.0000.00717.36
8.1.70.0070.00017.39
8.1.60.0100.00317.46
8.1.50.0000.00917.53
8.1.40.0080.00017.52
8.1.30.0000.00917.65
8.1.20.0040.00417.70
8.1.10.0050.00317.61
8.1.00.0040.00417.44
8.0.300.0000.00719.95
8.0.290.0030.00517.05
8.0.280.0020.00518.40
8.0.270.0030.00317.25
8.0.260.0060.00017.25
8.0.250.0000.00716.85
8.0.240.0040.00416.82
8.0.230.0070.00016.90
8.0.220.0030.00316.90
8.0.210.0030.00316.91
8.0.200.0050.00316.99
8.0.190.0000.00816.95
8.0.180.0080.00316.96
8.0.170.0030.00516.92
8.0.160.0000.00716.88
8.0.150.0000.00716.72
8.0.140.0050.00316.86
8.0.130.0000.00613.29
8.0.120.0000.00716.74
8.0.110.0000.00816.79
8.0.100.0060.00316.68
8.0.90.0080.00016.85
8.0.80.0060.00916.90
8.0.70.0040.00416.85
8.0.60.0030.00516.78
8.0.50.0050.00216.66
8.0.30.0100.01117.15
8.0.20.0140.00517.40
8.0.10.0040.00416.86
8.0.00.0080.01016.92
7.4.330.0050.00015.15
7.4.320.0060.00016.50
7.4.300.0030.00316.42
7.4.290.0050.00316.52
7.4.280.0040.00716.44
7.4.270.0020.00516.61
7.4.260.0030.00316.60
7.4.250.0070.00016.61
7.4.240.0010.00616.57
7.4.230.0000.00716.61
7.4.220.0090.00616.45
7.4.210.0050.01016.62
7.4.200.0040.00216.57
7.4.190.0080.00016.36
7.4.160.0030.01416.50
7.4.150.0100.01617.40
7.4.140.0130.01117.86
7.4.130.0040.01316.58
7.4.120.0120.00516.48
7.4.110.0120.00916.48
7.4.100.0100.00716.34
7.4.90.0160.00316.38
7.4.80.0120.00619.39
7.4.70.0060.01616.44
7.4.60.0120.00316.32
7.4.50.0000.00716.20
7.4.40.0060.00622.77
7.4.30.0090.00916.47
7.4.00.0060.01214.85
7.3.330.0000.00513.07
7.3.320.0000.00513.04
7.3.310.0030.00616.18
7.3.300.0070.00016.32
7.3.290.0080.00516.36
7.3.280.0060.01116.31
7.3.270.0120.00617.40
7.3.260.0110.00716.37
7.3.250.0130.00816.28
7.3.240.0090.00916.56
7.3.230.0100.00616.65
7.3.210.0040.01516.27
7.3.200.0080.00619.39
7.3.190.0090.01016.36
7.3.180.0110.00516.31
7.3.170.0130.00316.39
7.3.160.0100.00716.36
7.3.120.0070.00714.88
7.2.330.0100.01316.78
7.2.320.0120.01216.50
7.2.310.0070.01016.52
7.2.300.0030.01316.40
7.2.290.0070.01316.41
7.2.80.0150.00016.79
7.2.60.0040.00816.94
7.2.00.0060.00619.27
7.1.200.0040.00815.64
7.1.100.0130.00618.00
7.1.70.0030.00717.18
7.1.60.0110.01519.46
7.1.50.0040.00717.00
7.1.00.0030.07722.30
7.0.200.0070.00016.75
7.0.140.0100.06722.00
7.0.60.0000.04319.94
7.0.50.0100.07717.89
7.0.40.0000.04720.08
7.0.30.0230.09720.17
7.0.20.0230.04020.13
7.0.10.0130.04020.00
7.0.00.0100.08320.19
5.6.280.0030.07321.06
5.6.210.0100.08020.56
5.6.200.0170.06718.17
5.6.190.0170.06720.41
5.6.180.0230.07020.46
5.6.170.0230.04020.37
5.6.160.0070.05720.47
5.6.150.0070.08018.11
5.6.140.0100.07018.16
5.6.130.0070.05718.16
5.6.120.0130.06020.96
5.6.110.0070.08721.00
5.6.100.0030.07320.98
5.6.90.0100.05720.95
5.6.80.0100.04320.38
5.6.70.4230.04720.38
5.5.350.0070.08320.29
5.5.340.0170.06717.95
5.5.330.0000.05320.14
5.5.320.0330.04020.50
5.5.310.0200.03720.31
5.5.300.0130.07717.98
5.5.290.0070.07317.95
5.5.280.0000.08020.98
5.5.270.0070.09320.72
5.5.260.0100.08320.63
5.5.250.0070.03720.68
5.5.240.0300.07320.19
5.4.450.0900.06719.57
5.4.440.0830.05019.12
5.4.430.0270.05719.46
5.4.420.0930.06719.47
5.4.410.0670.06019.46
5.4.400.0100.06719.14
5.4.390.0570.06318.91
5.4.380.0230.05718.50
5.4.370.0130.05018.72
5.4.360.0370.07318.68
5.4.350.0270.05318.52
5.4.340.0270.05018.72
5.4.320.0050.03912.45
5.4.310.0060.03912.45
5.4.300.0010.04112.45
5.4.290.0050.04112.44
5.4.280.0060.04512.34
5.4.270.0120.04712.33
5.4.260.0100.05112.34
5.4.250.0110.05012.33
5.4.240.0130.05112.34
5.4.230.0080.05412.33
5.4.220.0130.07812.33
5.4.210.0110.05312.33
5.4.200.0060.06112.33
5.4.190.0060.05112.32
5.4.180.0100.03412.32
5.4.170.0080.04712.33
5.4.160.0100.03612.33
5.4.150.0090.03812.33
5.4.140.0080.04712.01
5.4.130.0100.04912.00
5.4.120.0100.04211.95
5.4.110.0100.06011.95
5.4.100.0170.08011.95
5.4.90.0080.05711.95
5.4.80.0160.05211.95
5.4.70.0120.07411.95
5.4.60.0070.05311.95
5.4.50.0090.05411.95
5.4.40.0090.04311.93
5.4.30.0090.05111.93
5.4.20.0110.05011.93
5.4.10.0060.04111.93
5.4.00.0080.03811.43
5.3.290.0050.04312.80
5.3.280.0060.04412.71
5.3.270.0110.04912.73
5.3.260.0120.03912.72
5.3.250.0170.06312.72
5.3.240.0110.06612.72
5.3.230.0110.05012.71
5.3.220.0090.04912.68
5.3.210.0090.05512.68
5.3.200.0080.05512.68
5.3.190.0090.05312.68
5.3.180.0130.04712.67
5.3.170.0030.04112.67
5.3.160.0080.03512.68
5.3.150.0070.04212.67
5.3.140.0130.04612.66
5.3.130.0150.05412.66
5.3.120.0140.05312.66
5.3.110.0140.06412.66
5.3.100.0080.05412.12
5.3.90.0120.04312.08
5.3.80.0070.03912.07
5.3.70.0110.03712.08
5.3.60.0130.04112.06
5.3.50.0080.04812.00
5.3.40.0090.04912.00
5.3.30.0080.03911.95
5.3.20.0130.03711.72
5.3.10.0110.03711.70
5.3.00.0150.05311.68
5.2.170.0080.0569.18
5.2.160.0100.0419.18
5.2.150.0070.0389.18
5.2.140.0100.0289.18
5.2.130.0070.0429.14
5.2.120.0090.0319.14
5.2.110.0180.0569.15
5.2.100.0080.0279.14
5.2.90.0040.0319.14
5.2.80.0070.0439.14
5.2.70.0130.0339.14
5.2.60.0060.0479.09
5.2.50.0060.0389.05
5.2.40.0040.0359.04
5.2.30.0020.0389.02
5.2.20.0070.0399.00
5.2.10.0080.0318.92
5.2.00.0090.0388.79
5.1.60.0050.0368.07
5.1.50.0070.0278.06
5.1.40.0050.0288.04
5.1.30.0060.0408.40
5.1.20.0070.0378.42
5.1.10.0040.0298.14
5.1.00.0050.0258.14
5.0.50.0040.0216.62
5.0.40.0050.0326.47
5.0.30.0090.0326.29
5.0.20.0020.0236.27
5.0.10.0030.0236.24
5.0.00.0050.0326.23
4.4.90.0050.0164.78
4.4.80.0040.0164.75
4.4.70.0020.0184.75
4.4.60.0050.0164.76
4.4.50.0040.0184.77
4.4.40.0060.0244.71
4.4.30.0050.0214.76
4.4.20.0060.0184.84
4.4.10.0030.0184.85
4.4.00.0040.0264.76
4.3.110.0020.0214.67
4.3.100.0050.0144.67
4.3.90.0040.0304.63
4.3.80.0050.0304.58
4.3.70.0060.0194.63
4.3.60.0020.0224.62
4.3.50.0040.0214.63
4.3.40.0040.0364.54
4.3.30.0030.0223.28
4.3.20.0030.0213.26
4.3.10.0030.0163.22
4.3.00.0300.01710.30

preferences:
55.05 ms | 401 KiB | 5 Q