3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(strtolower(null));

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)
8.3.40.0090.00618.47
8.3.30.0210.00520.88
8.3.20.0090.01222.95
8.3.10.0100.00623.86
8.3.00.0110.00623.42
8.2.170.0110.01118.96
8.2.160.0140.00722.96
8.2.150.0130.00424.76
8.2.140.0090.00524.52
8.2.130.0070.00724.82
8.2.120.0080.00623.79
8.2.110.0090.00622.82
8.2.100.0110.00521.76
8.2.90.0150.00421.04
8.2.80.0120.00621.00
8.2.70.0130.00720.78
8.2.60.0120.00720.29
8.2.50.0140.00420.33
8.2.40.0120.00520.71
8.2.30.0110.00619.80
8.2.20.0110.00419.78
8.2.10.0110.00619.90
8.2.00.0120.00519.76
8.1.270.0070.00424.39
8.1.260.0080.00324.86
8.1.250.0050.00625.21
8.1.240.0080.00722.40
8.1.230.0120.00522.03
8.1.220.0130.00521.05
8.1.210.0120.00621.28
8.1.200.0130.00620.39
8.1.190.0170.00219.91
8.1.180.0130.00520.13
8.1.170.0120.00520.26
8.1.160.0120.00419.93
8.1.150.0120.00419.88
8.1.140.0120.00719.37
8.1.130.0100.00619.30
8.1.120.0100.00519.12
8.1.110.0120.00419.23
8.1.100.0110.00419.11
8.1.90.0120.00419.12
8.1.80.0120.00519.16
8.1.70.0110.00519.00
8.1.60.0120.00518.88
8.1.50.0110.00618.80
8.1.40.0110.00718.86
8.1.30.0100.00618.95
8.1.20.0120.00418.85
8.1.10.0110.00618.67
8.1.00.0120.00618.53
8.0.300.0120.00420.91
8.0.290.0150.00520.13
8.0.280.0130.00619.26
8.0.270.0110.00419.23
8.0.260.0120.00519.01
8.0.250.0090.00618.86
8.0.240.0120.00518.85
8.0.230.0100.00618.78
8.0.220.0110.00618.68
8.0.210.0120.00518.71
8.0.200.0120.00418.53
8.0.190.0110.00518.33
8.0.180.0100.00518.30
8.0.170.0120.00418.25
8.0.160.0100.00518.24
8.0.150.0120.00418.22
8.0.140.0120.00518.15
8.0.130.0110.00617.79
8.0.120.0130.00517.91
8.0.110.0100.00517.87
8.0.100.0110.00417.79
8.0.90.0110.00517.82
8.0.80.0100.00517.84
8.0.70.0100.00517.78
8.0.60.0110.00617.70
8.0.50.0110.00517.72
8.0.30.0120.00517.53
8.0.20.0110.00617.62
8.0.10.0110.00617.67
8.0.00.0090.00617.89
7.4.330.0090.00317.83
7.4.320.0130.00518.75
7.4.300.0110.00518.29
7.4.290.0110.00518.12
7.4.280.0130.00418.05
7.4.270.0110.00518.00
7.4.260.0130.00417.83
7.4.250.0130.00517.78
7.4.240.0110.00517.71
7.4.230.0120.00517.60
7.4.220.0120.00417.65
7.4.210.0110.00517.59
7.4.200.0120.00417.59
7.4.190.0110.00417.58
7.4.180.0100.00517.59
7.4.160.0100.00617.41
7.4.150.0110.00617.36
7.4.140.0130.00517.40
7.4.130.0120.00617.22
7.4.120.0120.00517.16
7.4.110.0100.00717.14
7.4.100.0100.00617.27
7.4.90.0110.00617.18
7.4.80.0110.00617.24
7.4.70.0120.00517.12
7.4.60.0110.00617.13
7.4.50.0110.00617.08
7.4.40.0110.00617.07
7.4.30.0120.00517.10
7.4.20.0120.00617.10
7.4.10.0110.00616.91
7.4.00.0090.00716.96
7.3.330.0130.00417.44
7.3.320.0120.00517.47
7.3.310.0120.00517.58
7.3.300.0130.00417.48
7.3.290.0120.00517.43
7.3.280.0110.00517.13
7.3.270.0130.00417.23
7.3.260.0130.00517.18
7.3.250.0120.00517.16
7.3.240.0110.00617.08
7.3.230.0110.00717.07
7.3.220.0130.00417.04
7.3.210.0130.00517.02
7.3.200.0120.00517.01
7.3.190.0120.00616.99
7.3.180.0130.00617.00
7.3.170.0110.00617.02
7.3.160.0130.00516.99
7.3.150.0120.00617.02
7.3.140.0120.00617.00
7.3.130.0110.00716.80
7.3.120.0110.00716.78
7.3.110.0130.00616.68
7.3.100.0120.00616.72
7.3.90.0120.00616.85
7.3.80.0110.00716.73
7.3.70.0120.00616.77
7.3.60.0110.00716.64
7.3.50.0110.00616.58
7.3.40.0110.00616.60
7.3.30.0100.00716.54
7.3.20.0130.00617.37
7.3.10.0150.00517.25
7.3.00.0150.00617.25
7.2.340.0130.00617.21
7.2.330.0140.00617.10
7.2.320.0130.00617.11
7.2.310.0130.00617.07
7.2.300.0130.00617.12
7.2.290.0140.00617.09
7.2.280.0130.00617.10
7.2.270.0130.00617.08
7.2.260.0130.00616.88
7.2.250.0130.00716.91
7.2.240.0120.00716.84
7.2.230.0130.00616.83
7.2.220.0130.00716.79
7.2.210.0120.00816.79
7.2.200.0130.00716.87
7.2.190.0130.00716.67
7.2.180.0130.00716.62
7.2.170.0110.00816.72
7.2.160.0120.00716.68
7.2.150.0160.00717.51
7.2.140.0170.00717.51
7.2.130.0170.00717.42
7.2.120.0180.00617.43
7.2.110.0220.00717.33
7.2.100.0170.00717.30
7.2.90.0180.00717.21
7.2.80.0230.00717.19
7.2.70.0210.00717.18
7.2.60.0200.00717.16
7.2.50.0230.00717.15
7.2.40.0210.00717.20
7.2.30.0210.00717.24
7.2.20.0240.00617.26
7.2.10.0210.00717.26
7.2.00.0200.00717.20
7.1.330.0140.00516.97
7.1.320.0130.00616.97
7.1.310.0130.00616.96
7.1.300.0130.00616.79
7.1.290.0120.00616.80
7.1.280.0140.00616.71
7.1.270.0120.00616.71
7.1.260.0140.00716.68
7.1.250.0160.00616.49
7.1.240.0170.00516.53
7.1.230.0190.00616.42
7.1.220.0210.00716.44
7.1.210.0210.00716.39
7.1.200.0200.00716.32
7.1.190.0240.00716.27
7.1.180.0230.00716.24
7.1.170.0230.00716.27
7.1.160.0230.00616.27
7.1.150.0220.00616.28
7.1.140.0240.00616.29
7.1.130.0220.00616.26
7.1.120.0230.00616.28
7.1.110.0210.00716.29
7.1.100.0240.00616.27
7.1.90.0260.00616.28
7.1.80.0220.00716.29
7.1.70.0220.00616.24
7.1.60.0230.00617.81
7.1.50.0210.00717.81
7.1.40.0210.00717.80
7.1.30.0190.00617.79
7.1.20.0180.00617.72
7.1.10.0210.00616.29
7.1.00.0190.00716.27
7.0.330.0160.00616.30
7.0.320.0160.00616.30
7.0.310.0270.00615.99
7.0.300.0210.00616.05
7.0.290.0210.00616.03
7.0.280.0210.00616.07
7.0.270.0260.00616.04
7.0.260.0210.00716.04
7.0.250.0220.00716.11
7.0.240.0230.00616.11
7.0.230.0230.00616.09
7.0.220.0240.00716.06
7.0.210.0210.00616.08
7.0.200.0210.00616.08
7.0.190.0190.00616.08
7.0.180.0200.00616.05
7.0.170.0220.00616.11
7.0.160.0200.00616.02
7.0.150.0210.00716.05
7.0.140.0200.00616.06
7.0.130.0220.00716.13
7.0.120.0190.00716.13
7.0.110.0180.00616.02
7.0.100.0200.00616.02
7.0.90.0190.00616.00
7.0.80.0190.00615.99
7.0.70.0190.00615.96
7.0.60.0190.00616.01
7.0.50.0190.00615.96
7.0.40.0200.00616.04
7.0.30.0200.00616.03
7.0.20.0230.00615.99
7.0.10.0190.00616.03
7.0.00.0230.00616.00
5.6.400.0140.00816.23
5.6.390.0130.00816.25
5.6.380.0130.00716.02
5.6.370.0130.00816.01
5.6.360.0130.00816.01
5.6.350.0120.00816.01
5.6.340.0140.00716.02
5.6.330.0120.00816.03
5.6.320.0120.00816.04
5.6.310.0140.00716.05
5.6.300.0120.00915.85
5.6.290.0130.00815.98
5.6.280.0130.00815.94
5.6.270.0130.00815.93
5.6.260.0130.00715.93
5.6.250.0130.00815.92
5.6.240.0130.00715.94
5.6.230.0120.00815.94
5.6.220.0120.00815.95
5.6.210.0130.00715.93
5.6.200.0120.00815.98
5.6.190.0130.00716.00
5.6.180.0130.00815.96
5.6.170.0120.00815.96
5.6.160.0130.00715.96
5.6.150.0130.00715.98
5.6.140.0120.00815.95
5.6.130.0130.00715.96
5.6.120.0130.00715.98
5.6.110.0130.00715.93
5.6.100.0120.00815.91
5.6.90.0130.00715.93
5.6.80.0110.00815.90
5.6.70.0120.00715.94
5.6.60.0110.00815.95
5.6.50.0120.00815.89
5.6.40.0110.00815.90
5.6.30.0110.00815.89
5.6.20.0110.00815.86
5.6.10.0110.00815.86
5.6.00.0130.00815.87
5.5.380.0130.00815.48
5.5.370.0130.00715.50
5.5.360.0140.00715.42
5.5.350.0130.00715.43
5.5.340.0130.00715.41
5.5.330.0130.00715.42
5.5.320.0130.00815.41
5.5.310.0130.00715.41
5.5.300.0130.00715.41
5.5.290.0130.00715.42
5.5.280.0130.00715.45
5.5.270.0130.00715.44
5.5.260.0130.00715.43
5.5.250.0130.00815.44
5.5.240.0120.00715.43
5.5.230.0120.00815.40
5.5.220.0120.00715.41
5.5.210.0120.00815.46
5.5.200.0120.00815.36
5.5.190.0130.00715.35
5.5.180.0130.00715.36
5.5.170.0120.00815.66
5.5.160.0130.00615.37
5.5.150.0120.00815.36
5.5.140.0120.00715.30
5.5.130.0120.00715.31
5.5.120.0110.00815.33
5.5.110.0130.00715.29
5.5.100.0130.00715.41
5.5.90.0110.00715.40
5.5.80.0130.00615.41
5.5.70.0130.00615.41
5.5.60.0130.00715.40
5.5.50.0120.00815.42
5.5.40.0120.00715.39
5.5.30.0120.00715.46
5.5.20.0110.00815.46
5.5.10.0120.00715.37
5.5.00.0130.00615.33
5.4.450.0100.00613.65
5.4.440.0100.00613.63
5.4.430.0100.00613.64
5.4.420.0100.00613.61
5.4.410.0100.00613.62
5.4.400.0110.00513.60
5.4.390.0110.00513.59
5.4.380.0090.00713.58
5.4.370.0100.00513.60
5.4.360.0100.00613.60
5.4.350.0100.00613.60
5.4.340.0100.00613.58
5.4.330.0100.00613.62
5.4.320.0090.00613.62
5.4.310.0100.00613.62
5.4.300.0100.00613.62
5.4.290.0110.00613.60
5.4.280.0100.00613.62
5.4.270.0100.00513.61
5.4.260.0090.00713.60
5.4.250.0110.00513.58
5.4.240.0110.00513.59
5.4.230.0110.00513.54
5.4.220.0100.00613.52
5.4.210.0090.00613.52
5.4.200.0100.00613.52
5.4.190.0100.00613.52
5.4.180.0100.00613.51
5.4.170.0100.00613.53
5.4.160.0110.00513.53
5.4.150.0100.00613.54
5.4.140.0100.00613.58
5.4.130.0100.00513.58
5.4.120.0100.00613.59
5.4.110.0110.00513.59
5.4.100.0110.00613.62
5.4.90.0100.00613.59
5.4.80.0110.00513.61
5.4.70.0090.00513.60
5.4.60.0100.00513.62
5.4.50.0100.00513.57
5.4.40.0090.00613.59
5.4.30.0100.00613.62
5.4.20.0100.00413.60
5.4.10.0100.00613.62
5.4.00.0100.00613.53
5.3.290.0070.00422.96
5.3.280.0050.00522.96
5.3.270.0100.00322.96
5.3.260.0000.01022.96
5.3.250.0090.00322.96
5.3.240.0040.00822.96
5.3.230.0030.00722.96
5.3.220.0090.00322.96
5.3.210.0070.00422.96
5.3.200.0070.00422.96
5.3.190.0120.00022.96
5.3.180.0040.00822.96
5.3.170.0100.00322.96
5.3.160.0070.00722.96
5.3.150.0140.00022.96
5.3.140.0070.00722.96
5.3.130.0060.00622.96
5.3.120.0070.00722.96
5.3.110.0070.00722.96
5.3.100.0130.00622.96
5.3.90.0080.00422.96
5.3.80.0060.00922.96
5.3.70.0030.01022.96
5.3.60.0070.00322.96
5.3.50.0070.00322.96
5.3.40.0070.00422.96
5.3.30.0040.00722.96
5.3.20.0070.00422.96
5.3.10.0030.00722.96
5.3.00.0030.00622.96
5.2.170.0090.00022.96
5.2.160.0030.00722.96
5.2.150.0070.00422.96
5.2.140.0030.00722.96
5.2.130.0000.01022.96
5.2.120.0110.00022.96
5.2.110.0070.00322.96
5.2.100.0040.00822.96
5.2.90.0060.00322.96
5.2.80.0120.00022.96
5.2.70.0060.00322.96
5.2.60.0070.00422.96
5.2.50.0090.00322.96
5.2.40.0030.00622.96
5.2.30.0130.00322.96
5.2.20.0090.00922.96
5.2.10.0140.00522.96
5.2.00.0150.00422.96
5.1.60.0160.00022.96
5.1.50.0110.00522.96
5.1.40.0140.00322.96
5.1.30.0080.01122.96
5.1.20.0080.00622.96
5.1.10.0150.00022.96
5.1.00.0060.01022.96
5.0.50.0120.00022.96
5.0.40.0060.00622.96
5.0.30.0080.00422.96
5.0.20.0060.00622.96
5.0.10.0140.00022.96
5.0.00.0120.00022.96
4.4.90.0050.00222.96
4.4.80.0050.00322.96
4.4.70.0070.00022.96
4.4.60.0060.00022.96
4.4.50.0090.00022.96
4.4.40.0080.00022.96
4.4.30.0070.00022.96
4.4.20.0060.00322.96
4.4.10.0080.00022.96
4.4.00.0080.00022.96
4.3.110.0080.00022.96
4.3.100.0080.00022.96
4.3.90.0090.00022.96
4.3.80.0080.00022.96
4.3.70.0070.00222.96
4.3.60.0080.00022.96
4.3.50.0040.00422.96
4.3.40.0100.00022.96
4.3.30.0070.00022.96
4.3.20.0070.00022.96
4.3.10.0060.00022.96
4.3.00.0060.00022.96

preferences:
68.61 ms | 400 KiB | 5 Q