3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = '日本語'; var_dump(strlen($str)); var_dump(mb_strlen($str)); var_dump(iconv_strlen($str));

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)
8.3.60.0070.00716.48
8.3.50.0120.00621.92
8.3.40.0100.00718.71
8.3.30.0070.00719.10
8.3.20.0060.00320.31
8.3.10.0000.00821.73
8.3.00.0060.00317.80
8.2.180.0180.00016.38
8.2.170.0170.00322.96
8.2.160.0030.01020.40
8.2.150.0050.00324.18
8.2.140.0030.00624.66
8.2.130.0050.00326.16
8.2.120.0040.00421.02
8.2.110.0060.00322.11
8.2.100.0080.00417.78
8.2.90.0090.00019.09
8.2.80.0030.00617.97
8.2.70.0030.00717.38
8.2.60.0030.01017.54
8.2.50.0040.00418.07
8.2.40.0030.00517.92
8.2.30.0040.00418.05
8.2.20.0040.00417.68
8.2.10.0040.00417.98
8.2.00.0060.00317.68
8.1.280.0170.00025.92
8.1.270.0090.00023.91
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0060.00323.83
8.1.230.0070.00419.19
8.1.220.0000.00817.74
8.1.210.0030.00618.77
8.1.200.0030.00617.13
8.1.190.0030.00516.88
8.1.180.0040.00418.10
8.1.170.0040.00418.37
8.1.160.0000.00821.95
8.1.150.0060.00318.73
8.1.140.0000.00817.41
8.1.130.0030.00317.80
8.1.120.0040.00317.31
8.1.110.0000.00817.41
8.1.100.0070.00017.37
8.1.90.0000.00717.41
8.1.80.0020.00517.40
8.1.70.0000.00717.33
8.1.60.0050.00517.59
8.1.50.0030.00517.54
8.1.40.0040.00417.53
8.1.30.0050.00317.57
8.1.20.0030.00617.55
8.1.10.0040.00417.54
8.1.00.0000.00717.51
8.0.300.0060.00318.77
8.0.290.0000.00716.63
8.0.280.0000.00718.37
8.0.270.0000.00717.27
8.0.260.0000.00717.30
8.0.250.0000.00717.00
8.0.240.0040.00416.93
8.0.230.0000.00716.91
8.0.220.0030.00316.93
8.0.210.0040.00416.86
8.0.200.0030.00316.99
8.0.190.0000.00816.91
8.0.180.0000.00816.87
8.0.170.0050.00316.81
8.0.160.0000.00716.81
8.0.150.0030.00316.82
8.0.140.0100.00016.75
8.0.130.0000.00613.43
8.0.120.0060.00316.96
8.0.110.0030.00617.07
8.0.100.0040.00416.88
8.0.90.0060.00316.90
8.0.80.0030.01716.99
8.0.70.0040.00416.91
8.0.60.0040.00417.07
8.0.50.0030.00616.90
8.0.30.0140.01417.15
8.0.20.0100.01017.40
8.0.10.0030.00617.13
8.0.00.0150.00516.83
7.4.330.0000.00515.07
7.4.320.0030.00316.55
7.4.300.0030.00316.48
7.4.290.0070.00016.30
7.4.280.0030.00616.44
7.4.270.0000.00716.55
7.4.260.0000.00716.52
7.4.250.0060.00316.63
7.4.240.0010.00716.67
7.4.230.0040.00416.77
7.4.220.0090.01116.67
7.4.210.0030.01316.68
7.4.200.0060.00316.69
7.4.160.0210.00316.41
7.4.150.0100.01017.40
7.4.140.0120.00817.86
7.4.130.0130.00616.59
7.4.120.0100.01016.63
7.4.110.0090.00916.49
7.4.100.0110.01116.64
7.4.90.0140.00616.73
7.4.80.0120.01219.39
7.4.70.0100.01016.58
7.4.60.0160.00416.67
7.4.50.0030.00516.61
7.4.40.0100.00716.69
7.4.30.0140.00316.71
7.4.00.0060.01115.03
7.3.330.0050.00013.07
7.3.320.0000.00513.23
7.3.310.0080.00016.35
7.3.300.0000.00816.24
7.3.290.0070.01616.45
7.3.280.0100.01216.35
7.3.270.0040.01517.40
7.3.260.0070.01716.50
7.3.250.0120.00816.54
7.3.240.0060.01616.37
7.3.230.0110.00716.39
7.3.210.0130.00716.38
7.3.200.0070.01619.39
7.3.190.0070.01316.35
7.3.180.0110.01416.73
7.3.170.0100.01616.47
7.3.160.0130.00616.28
7.3.120.0030.01314.95
7.2.330.0100.01016.63
7.2.320.0030.01616.51
7.2.310.0060.01316.42
7.2.300.0080.01116.52
7.2.290.0040.01416.41
7.2.60.0080.00816.82
7.2.00.0080.00819.32
7.1.200.0090.00916.05
7.1.100.0120.01217.85
7.1.70.0000.00917.00
7.1.60.0100.01719.40
7.1.50.0040.02217.30
7.1.00.0030.07722.61
7.0.200.0030.00617.05
7.0.140.0030.07722.07
7.0.60.0270.06721.59
7.0.50.0030.04017.96
7.0.40.0100.08320.16
7.0.30.0300.08320.20
7.0.20.0230.07720.28
7.0.10.0070.04320.49
7.0.00.0070.04320.16
5.6.280.0030.07721.22
5.6.210.0130.08020.60
5.6.200.0030.08018.28
5.6.190.0100.05720.82
5.6.180.0370.08320.48
5.6.170.0370.07720.68
5.6.160.0030.08720.57
5.6.150.0000.09018.31
5.6.140.0070.07718.37
5.6.130.0000.04718.38
5.6.120.0070.08721.16
5.6.110.0070.07721.25
5.6.100.0100.05721.21
5.6.90.0030.09021.08
5.6.80.0170.08020.65
5.5.350.0230.07720.41
5.5.340.0070.05018.15
5.5.330.0070.07320.36
5.5.320.0200.04720.34
5.5.310.0130.04720.35
5.5.300.0100.05018.13
5.5.290.0170.06018.10
5.5.280.0130.03320.83
5.5.270.0070.07321.02
5.5.260.0130.08020.94
5.5.250.0270.06720.70
5.5.240.0200.05320.43
5.4.450.3630.04019.66
5.4.440.0130.03719.59
5.4.430.1800.06319.37
5.4.420.4030.04319.76
5.4.410.4030.04319.24
5.4.400.4170.04019.27
5.4.390.4000.03319.22
5.4.380.4570.03319.44
5.4.370.3900.03319.05
5.4.360.4200.05019.06
5.4.350.3900.04019.06
5.4.340.3970.03319.35
5.4.320.4070.04019.22
5.4.310.3600.04019.22
5.4.300.3570.04019.18
5.4.290.4700.04319.43
5.4.280.4030.04019.06
5.4.270.3700.04019.14
5.4.260.4070.04019.04
5.4.250.4100.04019.32
5.4.240.2330.03319.06
5.4.230.3970.04019.21
5.4.220.4300.04019.14
5.4.210.4270.03319.32
5.4.200.4300.03019.34
5.4.190.3970.04319.05
5.4.180.4100.04319.16
5.4.170.3830.04019.14
5.4.160.3970.04319.32
5.4.150.4000.03719.32
5.4.140.2970.03716.64
5.4.130.3570.03316.59
5.4.120.4200.03316.65
5.4.110.4770.04016.48
5.4.100.4130.03016.36
5.4.90.3870.03716.68
5.4.80.4070.03316.60
5.4.70.5030.03316.60
5.4.60.2300.03316.70
5.4.50.2500.03016.55
5.4.40.4200.04316.54
5.4.30.3870.04016.52
5.4.20.0070.03016.43
5.4.10.1800.04716.58
5.4.00.3300.03316.09
5.3.290.5000.03714.79
5.3.280.3770.05014.69
5.3.270.3600.03714.87
5.3.260.4100.04014.71
5.3.250.4600.04014.72
5.3.240.3830.04314.76
5.3.230.4100.04014.86
5.3.220.4030.04014.67
5.3.210.4370.02714.71
5.3.200.4630.04014.67
5.3.190.4130.04314.56
5.3.180.4570.04014.69
5.3.170.4130.04014.68
5.3.160.2370.04314.55
5.3.150.2270.03714.71
5.3.140.3030.03314.66
5.3.130.2300.04314.68
5.3.120.0100.03314.75
5.3.110.0030.04714.66
5.3.100.3570.04314.00
5.3.90.2900.03714.21
5.3.80.2570.04014.12
5.3.70.2630.03314.01
5.3.60.2370.03014.21
5.3.50.2800.04013.91
5.3.40.2800.03714.05
5.3.30.3030.03314.01
5.3.20.3500.04013.84
5.3.10.3870.03713.67
5.3.00.4230.04013.92
5.2.170.3100.03311.20
5.2.160.2200.03311.31
5.2.150.2470.03311.14
5.2.140.2900.03311.21
5.2.130.3470.02311.16
5.2.120.3200.03711.27
5.2.110.3430.02711.25
5.2.100.3870.03011.20
5.2.90.4000.03011.16
5.2.80.3430.03311.25
5.2.70.0600.03311.41
5.2.60.0000.05011.23
5.2.50.0070.04711.11
5.2.40.0430.05711.24
5.2.30.3170.03011.12
5.2.20.2730.03011.07
5.2.10.3070.03011.03
5.2.00.2600.03310.96
5.1.60.2670.03010.17
5.1.50.2830.02710.09
5.1.40.2470.03010.11
5.1.30.2900.02010.49
5.1.20.2730.02710.69
5.1.10.2800.02010.21
5.1.00.3770.02010.25
5.0.50.1570.0238.71
5.0.40.1830.0238.55
5.0.30.1430.0278.37
5.0.20.1930.0238.26
5.0.10.1770.0208.31
5.0.00.1900.0408.29
4.4.90.0030.0275.83
4.4.80.0030.0375.80
4.4.70.1530.0175.82
4.4.60.1530.0135.76
4.4.50.1530.0205.83
4.4.40.1730.0275.88
4.4.30.1330.0135.80
4.4.20.1470.0205.87
4.4.10.1800.0175.89
4.4.00.2200.0275.82
4.3.110.1570.0175.70
4.3.100.2300.0135.71
4.3.90.2000.0135.67
4.3.80.1870.0235.82
4.3.70.1300.0175.74
4.3.60.1530.0135.75
4.3.50.1600.0135.74
4.3.40.1470.0275.68
4.3.30.0900.0234.53
4.3.20.0730.0174.53
4.3.10.0770.0174.53
4.3.00.0930.0174.53

preferences:
39.35 ms | 401 KiB | 5 Q