3v4l.org

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

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)
8.3.70.0000.01418.43
8.3.60.0130.00618.43
8.3.50.0110.01121.15
8.3.40.0090.00618.54
8.3.30.0130.00520.72
8.3.20.0060.00721.48
8.3.10.0050.00823.33
8.3.00.0120.00222.35
8.2.190.0080.00616.63
8.2.180.0120.00416.50
8.2.170.0110.00322.96
8.2.160.0060.01021.70
8.2.150.0070.00623.57
8.2.140.0070.00623.81
8.2.130.0050.00722.04
8.2.120.0090.00524.66
8.2.110.0090.00321.86
8.2.100.0090.00520.44
8.2.90.0080.00720.29
8.2.80.0070.00621.17
8.2.70.0080.00420.38
8.2.60.0050.00920.31
8.2.50.0070.00720.53
8.2.40.0080.00421.75
8.2.30.0080.00321.12
8.2.20.0080.00720.22
8.2.10.0100.00520.38
8.2.00.0080.00420.44
8.1.280.0160.00625.92
8.1.270.0090.00622.41
8.1.260.0080.00525.53
8.1.250.0070.00525.53
8.1.240.0080.00522.51
8.1.230.0120.00221.04
8.1.220.0050.00720.35
8.1.210.0060.00620.87
8.1.200.0040.00920.04
8.1.190.0100.00420.09
8.1.180.0080.00620.53
8.1.170.0090.00220.71
8.1.160.0090.00221.79
8.1.150.0090.00221.76
8.1.140.0070.00521.16
8.1.130.0030.00820.26
8.1.120.0040.00720.11
8.1.110.0090.00220.15
8.1.100.0050.00720.13
8.1.90.0050.00520.13
8.1.80.0070.00420.10
8.1.70.0060.00520.09
8.1.60.0050.00520.22
8.1.50.0070.00520.13
8.1.40.0080.00320.16
8.1.30.0080.00320.23
8.1.20.0080.00320.19
8.1.10.0040.00619.13
8.1.00.0050.00519.15
8.0.300.0080.00421.33
8.0.290.0110.00519.86
8.0.280.0150.00320.64
8.0.270.0050.00720.00
8.0.260.0110.00420.04
8.0.250.0090.00619.92
8.0.240.0090.00619.93
8.0.230.0100.00519.93
8.0.220.0030.00919.88
8.0.210.0110.00519.83
8.0.200.0110.00519.92
8.0.190.0130.00319.88
8.0.180.0100.00319.93
8.0.170.0100.00719.91
8.0.160.0090.00519.94
8.0.150.0110.00719.86
8.0.140.0130.00318.78
8.0.130.0080.00417.56
8.0.120.0090.00418.81
8.0.110.0110.00218.78
8.0.100.0110.00118.77
8.0.90.0090.00518.80
8.0.80.0120.00718.79
8.0.70.0070.00318.86
8.0.60.0110.00518.80
8.0.50.0100.00318.84
8.0.30.0070.00818.36
8.0.20.0090.01018.41
8.0.10.0110.00418.91
8.0.00.0090.01117.87
7.4.330.0070.00219.90
7.4.320.0150.00719.69
7.4.300.0170.00219.66
7.4.290.0080.01219.65
7.4.280.0120.00719.70
7.4.270.0110.00318.62
7.4.260.0080.00718.59
7.4.250.0110.00418.57
7.4.240.0120.00218.55
7.4.230.0110.00318.54
7.4.220.0060.00718.55
7.4.210.0100.00817.68
7.4.200.0070.00618.57
7.4.190.0130.00419.74
7.4.180.0110.00519.71
7.4.160.0130.00618.50
7.4.150.0110.00618.90
7.4.140.0130.00518.73
7.4.130.0110.00717.94
7.4.120.0090.00818.04
7.4.110.0130.00418.42
7.4.100.0140.00318.58
7.4.90.0080.00918.55
7.4.80.0140.00619.54
7.4.70.0090.00818.47
7.4.60.0100.00818.53
7.4.50.0130.00518.37
7.4.40.0070.00918.51
7.4.30.0120.00418.51
7.4.20.0150.00819.65
7.4.10.0180.00519.59
7.4.00.0100.00517.24
7.3.330.0190.00217.33
7.3.320.0140.00917.39
7.3.310.0120.00618.43
7.3.300.0150.00418.38
7.3.290.0150.00618.43
7.3.280.0110.00917.57
7.3.270.0170.00818.90
7.3.260.0190.00518.44
7.3.250.0130.00717.62
7.3.240.0190.00217.96
7.3.230.0140.00718.52
7.3.220.0180.00619.56
7.3.210.0160.00818.49
7.3.200.0200.00719.48
7.3.190.0160.00518.46
7.3.180.0180.00418.36
7.3.170.0190.00418.50
7.3.160.0100.01118.49
7.3.150.0210.00319.54
7.3.140.0200.00419.61
7.3.130.0190.00719.50
7.3.120.0120.01017.95
7.3.110.0160.00818.02
7.3.100.0150.00817.79
7.3.90.0190.00617.88
7.3.80.0180.00517.95
7.3.70.0150.00717.91
7.3.60.0160.00617.88
7.3.50.0160.00717.91
7.3.40.0180.00417.94
7.3.30.0140.00917.96
7.3.20.0150.00619.23
7.3.10.0180.00619.10
7.3.00.0210.00519.22
7.2.340.0250.00819.55
7.2.330.0180.00818.54
7.2.320.0140.01018.48
7.2.310.0170.00518.45
7.2.300.0130.00918.48
7.2.290.0130.00718.50
7.2.280.0190.00319.61
7.2.270.0180.00519.49
7.2.260.0160.00719.49
7.2.250.0100.01218.01
7.2.240.0120.00918.07
7.2.230.0190.00817.92
7.2.220.0170.00717.91
7.2.210.0180.00617.93
7.2.200.0180.00418.08
7.2.190.0160.00518.02
7.2.180.0140.00518.01
7.2.170.0130.00618.03
7.2.160.0130.01119.58
7.2.150.0210.00520.54
7.2.140.0210.00320.61
7.2.130.0200.00520.58
7.2.120.0160.00820.60
7.2.110.0150.00920.56
7.2.100.0150.00420.60
7.2.90.0170.00720.63
7.2.80.0210.00820.64
7.2.70.0170.00820.60
7.2.60.0230.00720.67
7.2.50.0230.00520.51
7.2.40.0210.00720.65
7.2.30.0220.00320.61
7.2.20.0190.00520.63
7.2.10.0190.00520.57
7.2.00.0120.00320.09
7.1.330.0120.00818.57
7.1.320.0120.00718.68
7.1.310.0100.00718.56
7.1.300.0120.00718.68
7.1.290.0120.00618.62
7.1.280.0150.00418.68
7.1.270.0140.00518.54
7.1.260.0150.00318.61
7.1.250.0200.00220.06
7.1.240.0180.00819.96
7.1.230.0200.00720.03
7.1.220.0200.00620.05
7.1.210.0190.01120.06
7.1.200.0160.00920.02
7.1.190.0210.00520.07
7.1.180.0200.00320.09
7.1.170.0180.00520.04
7.1.160.0170.00520.07
7.1.150.0210.00219.99
7.1.140.0160.00519.96
7.1.130.0160.00720.04
7.1.120.0230.00119.94
7.1.110.0180.00519.96
7.1.100.0160.00519.34
7.1.90.0220.00520.00
7.1.80.0190.00820.15
7.1.70.0130.00718.97
7.1.60.0170.00519.83
7.1.50.0210.00624.90
7.1.40.0210.00520.18
7.1.30.0200.00420.04
7.1.20.0190.00620.09
7.1.10.0210.00320.04
7.1.00.0080.02820.88
7.0.330.0180.00719.84
7.0.320.0200.00119.85
7.0.310.0230.00519.81
7.0.300.0170.00519.91
7.0.290.0200.00519.99
7.0.280.0190.00219.85
7.0.270.0220.00519.88
7.0.260.0170.00419.87
7.0.250.0170.00619.89
7.0.240.0180.00920.02
7.0.230.0200.00120.01
7.0.220.0170.00419.92
7.0.210.0160.00519.85
7.0.200.0270.00118.13
7.0.190.0190.00819.96
7.0.180.0170.00819.94
7.0.170.0200.00519.90
7.0.160.0190.00119.85
7.0.150.0170.00519.96
7.0.140.0150.00819.94
7.0.130.0150.00720.02
7.0.120.0170.00319.96
7.0.110.0220.00419.92
7.0.100.0130.00619.84
7.0.90.0210.00719.78
7.0.80.0190.00219.96
7.0.70.0160.00619.83
7.0.60.0140.02820.57
7.0.50.0110.02619.19
7.0.40.0100.03319.90
7.0.30.0160.03019.93
7.0.20.0130.02019.92
7.0.10.0160.01619.97
7.0.00.0120.02619.91
5.6.400.0110.00819.29
5.6.390.0140.00619.19
5.6.380.0190.00119.30
5.6.370.0170.00319.26
5.6.360.0150.00519.17
5.6.350.0160.00619.19
5.6.340.0150.00519.15
5.6.330.0170.00319.19
5.6.320.0140.00619.26
5.6.310.0170.00419.16
5.6.300.0130.00719.25
5.6.290.0190.00219.20
5.6.280.0090.02219.84
5.6.270.0150.00719.26
5.6.260.0190.00219.21
5.6.250.0180.00519.18
5.6.240.0200.00519.19
5.6.230.0160.00719.21
5.6.220.0140.00719.32
5.6.210.0140.03219.71
5.6.200.0110.01918.95
5.6.190.0150.01419.71
5.6.180.0240.01519.69
5.6.170.0230.03119.62
5.6.160.0140.02319.61
5.6.150.0160.02918.94
5.6.140.0140.01918.94
5.6.130.0110.03218.91
5.6.120.0150.01419.86
5.6.110.0110.01719.81
5.6.100.0120.02919.78
5.6.90.0120.01619.82
5.6.80.0130.03119.70
5.6.70.0140.00619.27
5.6.60.0160.00419.35
5.6.50.0180.00419.17
5.6.40.0160.00419.17
5.6.30.0160.00419.30
5.6.20.0140.00519.14
5.6.10.0140.00619.24
5.6.00.0140.00619.24
5.5.380.0150.00519.35
5.5.370.0180.00519.33
5.5.360.0150.00619.27
5.5.350.0210.02819.63
5.5.340.0150.03218.78
5.5.330.0150.01919.66
5.5.320.0190.02119.50
5.5.310.0220.02619.51
5.5.300.0130.02918.83
5.5.290.0140.02818.83
5.5.280.0140.01419.82
5.5.270.0160.02819.72
5.5.260.0140.02619.81
5.5.250.0150.03219.74
5.5.240.0220.02719.50
5.5.230.0170.00319.14
5.5.220.0190.00319.33
5.5.210.0230.00119.25
5.5.200.0180.00319.13
5.5.190.0180.00619.24
5.5.180.0170.00819.15
5.5.170.0140.00519.08
5.5.160.0220.00319.08
5.5.150.0200.00319.21
5.5.140.0150.00519.02
5.5.130.0200.00519.15
5.5.120.0150.00619.02
5.5.110.0200.00519.18
5.5.100.0240.00219.21
5.5.90.0200.00619.23
5.5.80.0230.00219.12
5.5.70.0180.00619.19
5.5.60.0220.00119.29
5.5.50.0120.00819.19
5.5.40.0180.00119.30
5.5.30.0150.00419.19
5.5.20.0170.00219.21
5.5.10.0130.00719.13
5.5.00.0170.00419.28

preferences:
51.01 ms | 401 KiB | 5 Q