3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(mb_strlen(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)
8.3.60.0090.00618.43
8.3.50.0120.00521.98
8.3.40.0250.00718.02
8.3.30.0230.00818.15
8.3.20.0170.00720.46
8.3.10.0150.00521.56
8.3.00.0170.00519.55
8.2.180.0090.00616.50
8.2.170.0250.00620.36
8.2.160.0210.00919.73
8.2.150.0150.00920.72
8.2.140.0200.00421.38
8.2.130.0240.00421.75
8.2.120.0210.00719.64
8.2.110.0150.00920.12
8.2.100.0160.00719.12
8.2.90.0160.00318.98
8.2.80.0110.00818.70
8.2.70.0090.01118.40
8.2.60.0150.00718.19
8.2.50.0140.00818.29
8.2.40.0170.00419.10
8.2.30.0120.00918.24
8.2.20.0130.00818.25
8.2.10.0160.00518.21
8.2.00.0110.01018.13
8.1.280.0070.00725.92
8.1.270.0170.00721.58
8.1.260.0180.00822.33
8.1.250.0140.00923.03
8.1.240.0140.01120.33
8.1.230.0150.00918.86
8.1.220.0170.00917.92
8.1.210.0180.00518.66
8.1.200.0190.00218.18
8.1.190.0150.00817.76
8.1.180.0120.00917.89
8.1.170.0200.00518.21
8.1.160.0160.00419.07
8.1.150.0130.00718.17
8.1.140.0110.00817.97
8.1.130.0120.00417.81
8.1.120.0120.00517.73
8.1.110.0130.00717.71
8.1.100.0110.00517.74
8.1.90.0100.00717.72
8.1.80.0110.00517.80
8.1.70.0120.00417.61
8.1.60.0140.00417.82
8.1.50.0120.00417.74
8.1.40.0130.00617.73
8.1.30.0120.00617.83
8.1.20.0120.00517.95
8.1.10.0130.00517.71
8.1.00.0110.00517.34
8.0.300.0190.00418.22
8.0.290.0170.01016.98
8.0.280.0190.00417.31
8.0.270.0120.00617.39
8.0.260.0130.00416.93
8.0.250.0120.00517.33
8.0.240.0160.00416.86
8.0.230.0140.00416.85
8.0.220.0120.00516.78
8.0.210.0170.00516.71
8.0.200.0100.00617.13
8.0.190.0140.00416.82
8.0.180.0140.00417.13
8.0.170.0140.00616.82
8.0.160.0130.00417.14
8.0.150.0110.00516.75
8.0.140.0110.00516.96
8.0.130.0110.00616.41
8.0.120.0100.00616.77
8.0.110.0070.00617.01
8.0.100.0090.00516.79
8.0.90.0080.00616.75
8.0.80.0110.00416.85
8.0.70.0090.00416.94
8.0.60.0110.00516.74
8.0.50.0100.00616.79
8.0.30.0100.00716.95
8.0.20.0100.00617.08
8.0.10.0100.00616.81
8.0.00.0090.00817.10
7.4.330.0090.00416.07
7.4.320.0180.00716.43
7.4.300.0130.00516.49
7.4.290.0120.00616.45
7.4.280.0140.00416.53
7.4.270.0130.00616.46
7.4.260.0140.00316.45
7.4.250.0140.00516.42
7.4.240.0110.00516.46
7.4.230.0130.00516.41
7.4.220.0130.00316.45
7.4.210.0120.00516.42
7.4.200.0120.00416.40
7.4.190.0100.00516.49
7.4.180.0120.00516.45
7.4.160.0090.00816.47
7.4.150.0110.00616.51
7.4.140.0110.00716.64
7.4.130.0100.00716.33
7.4.120.0100.00816.37
7.4.110.0110.00616.33
7.4.100.0110.00616.46
7.4.90.0090.00716.40
7.4.80.0110.00516.60
7.4.70.0100.00616.37
7.4.60.0110.00516.40
7.4.50.0100.00616.30
7.4.40.0110.00516.28
7.4.30.0120.00616.35
7.4.20.0100.00816.32
7.4.10.0090.00816.38
7.4.00.0100.00616.28
7.3.330.0160.00415.93
7.3.320.0150.00415.90
7.3.310.0130.00516.22
7.3.300.0130.00416.28
7.3.290.0130.00516.16
7.3.280.0130.00516.23
7.3.270.0150.00416.32
7.3.260.0160.00316.25
7.3.250.0130.00516.27
7.3.240.0120.00616.25
7.3.230.0110.00916.27
7.3.220.0140.00516.17
7.3.210.0130.00616.21
7.3.200.0130.00716.45
7.3.190.0130.00716.13
7.3.180.0150.00516.19
7.3.170.0150.00416.23
7.3.160.0130.00716.17
7.3.150.0130.00716.20
7.3.140.0150.00516.14
7.3.130.0140.00616.13
7.3.120.0130.00616.08
7.3.110.0120.00716.13
7.3.100.0140.00516.00
7.3.90.0130.00716.29
7.3.80.0130.00916.06
7.3.70.0120.00716.11
7.3.60.0120.00716.05
7.3.50.0120.00716.03
7.3.40.0140.00516.15
7.3.30.0120.00616.05
7.3.20.0130.00617.09
7.3.10.0190.00716.74
7.3.00.0200.00716.68
7.2.340.0160.00716.30
7.2.330.0160.00716.25
7.2.320.0170.00716.24
7.2.310.0170.00616.24
7.2.300.0160.00716.25
7.2.290.0180.00616.23
7.2.280.0170.00716.26
7.2.270.0170.00616.24
7.2.260.0170.00616.20
7.2.250.0170.00616.25
7.2.240.0160.00716.25
7.2.230.0170.00516.20
7.2.220.0170.00516.11
7.2.210.0150.00716.14
7.2.200.0180.00416.23
7.2.190.0140.00716.22
7.2.180.0150.00616.23
7.2.170.0140.00716.28
7.2.160.0150.00616.23
7.2.150.0150.00817.10
7.2.140.0160.00517.18
7.2.130.0180.00617.12
7.2.120.0210.00517.11
7.2.110.0180.00717.06
7.2.100.0190.00617.05
7.2.90.0190.00717.00
7.2.80.0180.00617.05
7.2.70.0160.00717.01
7.2.60.0150.00817.07
7.2.50.0150.00817.01
7.2.40.0190.00617.05
7.2.30.0210.00617.11
7.2.20.0190.00617.11
7.2.10.0200.00717.08
7.2.00.0150.00717.23
7.1.330.0220.00616.42
7.1.320.0160.00616.30
7.1.310.0140.00616.29
7.1.300.0150.00616.22
7.1.290.0140.00716.23
7.1.280.0140.00616.21
7.1.270.0150.00516.34
7.1.260.0170.00616.22
7.1.250.0150.00715.99
7.1.240.0170.00616.01
7.1.230.0190.00616.06
7.1.220.0190.00516.05
7.1.210.0170.00616.10
7.1.200.0170.00715.99
7.1.190.0170.00716.06
7.1.180.0170.00616.01
7.1.170.0190.00716.02
7.1.160.0170.00615.99
7.1.150.0170.00715.99
7.1.140.0200.00516.05
7.1.130.0170.00616.01
7.1.120.0170.00616.04
7.1.110.0190.00615.94
7.1.100.0210.00516.15
7.1.90.0190.00616.01
7.1.80.0160.00616.02
7.1.70.0190.00515.96
7.1.60.0150.00716.09
7.1.50.0150.00616.07
7.1.40.0250.00616.05
7.1.30.0160.00716.04
7.1.20.0160.00816.00
7.1.10.0200.00616.02
7.1.00.0140.00716.07
7.0.330.0180.00715.60
7.0.320.0180.00615.65
7.0.310.0200.00615.71
7.0.300.0180.00715.63
7.0.290.0200.00615.71
7.0.280.0160.00815.68
7.0.270.0180.00515.62
7.0.260.0280.00715.71
7.0.250.0180.00515.77
7.0.240.0190.00615.81
7.0.230.0170.00715.78
7.0.220.0180.00615.72
7.0.210.0170.00715.77
7.0.200.0160.00815.77
7.0.190.0170.00615.83
7.0.180.0150.00815.73
7.0.170.0190.00615.81
7.0.160.0180.00615.73
7.0.150.0160.00715.71
7.0.140.0210.00515.73
7.0.130.0180.00715.85
7.0.120.0170.00615.86
7.0.110.0170.00615.84
7.0.100.0150.00815.76
7.0.90.0150.00715.68
7.0.80.0170.00615.70
7.0.70.0160.00715.68
7.0.60.0150.00715.76
7.0.50.0140.00715.76
7.0.40.0160.00615.69
7.0.30.0150.00715.69
7.0.20.0170.00615.63
7.0.10.0180.00415.71
7.0.00.0160.00615.64
5.6.400.0120.00915.96
5.6.390.0150.00816.04
5.6.380.0140.01015.94
5.6.370.0150.01115.88
5.6.360.0150.01015.88
5.6.350.0140.01115.92
5.6.340.0140.01015.94
5.6.330.0140.00915.89
5.6.320.0130.01215.87
5.6.310.0150.00915.91
5.6.300.0120.01316.07
5.6.290.0150.01116.15
5.6.280.0130.01116.18
5.6.270.0120.01316.17
5.6.260.0120.01516.17
5.6.250.0140.01316.17
5.6.240.0110.01216.24
5.6.230.0130.01416.24
5.6.220.0130.01216.21
5.6.210.0120.01216.22
5.6.200.0140.01416.26
5.6.190.0130.01316.29
5.6.180.0150.01016.25
5.6.170.0140.01216.27
5.6.160.0140.01116.22
5.6.150.0130.01316.22
5.6.140.0120.01416.25
5.6.130.0110.01616.23
5.6.120.0130.01416.27
5.6.110.0130.01316.22
5.6.100.0150.01316.19
5.6.90.0120.01416.19
5.6.80.0140.01516.05
5.6.70.0120.01316.15
5.6.60.0120.01316.12
5.6.50.0110.01416.08
5.6.40.0130.01316.06
5.6.30.0110.01316.07
5.6.20.0120.01316.05
5.6.10.0140.01316.06
5.6.00.0100.01616.03
5.5.380.0120.01315.86
5.5.370.0130.01215.83
5.5.360.0140.01515.73
5.5.350.0120.01415.72
5.5.340.0130.01315.72
5.5.330.0140.01215.75
5.5.320.0130.01415.79
5.5.310.0150.01215.74
5.5.300.0130.01615.79
5.5.290.0130.01315.77
5.5.280.0130.01215.73
5.5.270.0120.01415.70
5.5.260.0140.01315.73
5.5.250.0130.01315.82
5.5.240.0130.01315.70
5.5.230.0140.01215.69
5.5.220.0140.01415.72
5.5.210.0140.01115.70
5.5.200.0140.01315.66
5.5.190.0120.01515.61
5.5.180.0140.01215.61
5.5.170.0140.00915.52
5.5.160.0130.01115.66
5.5.150.0140.01115.62
5.5.140.0120.01215.62
5.5.130.0130.01315.65
5.5.120.0120.01215.65
5.5.110.0150.01215.59
5.5.100.0130.01215.63
5.5.90.0140.01315.64
5.5.80.0130.01215.69
5.5.70.0140.01115.70
5.5.60.0130.01315.62
5.5.50.0150.01115.67
5.5.40.0130.01115.66
5.5.30.0140.01115.73
5.5.20.0130.01315.69
5.5.10.0120.01315.65
5.5.00.0120.01315.66
5.4.450.0120.01013.70
5.4.440.0100.01213.73
5.4.430.0110.00913.73
5.4.420.0100.01413.72
5.4.410.0110.00913.67
5.4.400.0100.01013.63
5.4.390.0110.01013.66
5.4.380.0110.01013.61
5.4.370.0090.01113.67
5.4.360.0090.01113.64
5.4.350.0110.01013.64
5.4.340.0110.01013.64
5.4.330.0120.00813.32
5.4.320.0100.01213.65
5.4.310.0110.01113.70
5.4.300.0100.01113.70
5.4.290.0100.01113.65
5.4.280.0120.01013.69
5.4.270.0130.00813.68
5.4.260.0110.01113.65
5.4.250.0110.01013.62
5.4.240.0120.00913.66
5.4.230.0100.01113.59
5.4.220.0100.01013.62
5.4.210.0110.01013.63
5.4.200.0110.01013.63
5.4.190.0090.01213.54
5.4.180.0100.01113.58
5.4.170.0090.01213.63
5.4.160.0120.00913.63
5.4.150.0100.01113.60
5.4.140.0100.01213.47
5.4.130.0110.01013.49
5.4.120.0100.01013.50
5.4.110.0110.00913.48
5.4.100.0100.00913.55
5.4.90.0100.00913.50
5.4.80.0110.01013.54
5.4.70.0100.01213.48
5.4.60.0100.01113.58
5.4.50.0090.01013.47
5.4.40.0090.01113.52
5.4.30.0100.01113.52
5.4.20.0090.01213.57
5.4.10.0110.01013.49
5.4.00.0100.01013.38
5.3.290.0110.01213.64
5.3.280.0100.01213.54
5.3.270.0100.01213.65
5.3.260.0120.00913.67
5.3.250.0120.01013.65
5.3.240.0090.01113.61
5.3.230.0100.01013.60
5.3.220.0100.01113.57
5.3.210.0100.01113.56
5.3.200.0090.01013.57
5.3.190.0100.00913.62
5.3.180.0100.01113.69
5.3.170.0090.01213.67
5.3.160.0090.01113.72
5.3.150.0090.01513.67
5.3.140.0090.01313.63
5.3.130.0100.01013.64
5.3.120.0100.01213.67
5.3.110.0100.01213.65
5.3.100.0090.01213.57
5.3.90.0090.01013.54
5.3.80.0090.01213.49
5.3.70.0100.00913.45
5.3.60.0090.01013.66
5.3.50.0090.01013.51
5.3.40.0110.01113.51
5.3.30.0080.01113.58
5.3.20.0110.00813.55
5.3.10.0100.00913.44
5.3.00.0100.01013.45

preferences:
52.2 ms | 401 KiB | 5 Q