3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "သဥ℃ဢ"; for ($i = 0; $i < mb_strlen($str); $i++) { var_dump(mb_substr($data, $i, 1)); }

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)
8.3.60.0000.01416.63
8.3.50.0100.00721.98
8.3.40.0040.01118.70
8.3.30.0090.00618.92
8.3.20.0040.00420.25
8.3.10.0040.00423.48
8.3.00.0030.00618.92
8.2.180.0120.00616.50
8.2.170.0110.00322.96
8.2.160.0070.00720.57
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00420.91
8.2.110.0090.00019.19
8.2.100.0060.00617.72
8.2.90.0050.00319.13
8.2.80.0040.00417.97
8.2.70.0000.00817.63
8.2.60.0000.00717.80
8.2.50.0030.00618.07
8.2.40.0050.00321.11
8.2.30.0070.00018.19
8.2.20.0060.00317.69
8.2.10.0000.00718.07
8.2.00.0000.00817.79
8.1.280.0100.01025.92
8.1.270.0050.00323.97
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00021.35
8.1.230.0040.00717.52
8.1.220.0080.00017.74
8.1.210.0080.00018.77
8.1.200.0060.00317.13
8.1.190.0000.00817.10
8.1.180.0040.00418.10
8.1.170.0040.00418.59
8.1.160.0050.00321.96
8.1.150.0040.00418.58
8.1.140.0000.00717.30
8.1.130.0000.00717.84
8.1.120.0000.00717.28
8.1.110.0000.00717.43
8.1.100.0040.00417.40
8.1.90.0000.00717.44
8.1.80.0050.00217.40
8.1.70.0000.00717.32
8.1.60.0000.00817.60
8.1.50.0060.00317.49
8.1.40.0050.00317.40
8.1.30.0040.00417.69
8.1.20.0040.00417.50
8.1.10.0100.00017.60
8.1.00.0060.00317.43
8.0.300.0030.00618.77
8.0.290.0060.00316.75
8.0.280.0070.00018.49
8.0.270.0050.00217.31
8.0.260.0060.00317.26
8.0.250.0040.00417.02
8.0.240.0030.00316.91
8.0.230.0000.00716.89
8.0.220.0000.00716.82
8.0.210.0000.00716.87
8.0.200.0030.00316.98
8.0.190.0050.00316.99
8.0.180.0000.00716.94
8.0.170.0040.00416.93
8.0.160.0040.00416.90
8.0.150.0050.00316.91
8.0.140.0040.00416.93
8.0.130.0060.00313.42
8.0.120.0040.00416.93
8.0.110.0000.00716.86
8.0.100.0030.00516.98
8.0.90.0050.00216.89
8.0.80.0000.01516.95
8.0.70.0080.00016.85
8.0.60.0000.00816.84
8.0.50.0080.00016.73
8.0.30.0170.00516.89
8.0.20.0140.00517.40
8.0.10.0000.00816.92
8.0.00.0110.01016.64
7.4.330.0000.00515.09
7.4.320.0030.00316.45
7.4.300.0060.00016.53
7.4.290.0060.00316.44
7.4.280.0040.00316.33
7.4.270.0030.00716.35
7.4.260.0070.00016.52
7.4.250.0040.00416.39
7.4.240.0020.00516.54
7.4.230.0050.00216.44
7.4.220.0080.01216.45
7.4.210.0080.00816.59
7.4.200.0030.00516.54
7.4.190.0030.00316.46
7.4.160.0130.00316.46
7.4.150.0150.00417.40
7.4.140.0080.01217.86
7.4.130.0080.00816.49
7.4.120.0060.01116.68
7.4.110.0130.01016.40
7.4.100.0090.01016.55
7.4.90.0100.00716.46
7.4.80.0120.00619.39
7.4.70.0080.00816.47
7.4.60.0090.01316.61
7.4.50.0030.00616.27
7.4.40.0140.00316.48
7.4.30.0070.01016.42
7.4.00.0110.00714.76
7.3.330.0030.00313.17
7.3.320.0000.00613.23
7.3.310.0000.00716.39
7.3.300.0000.00716.29
7.3.290.0070.00716.37
7.3.280.0080.00816.29
7.3.270.0120.00617.40
7.3.260.0080.01416.29
7.3.250.0120.01216.55
7.3.240.0160.00616.43
7.3.230.0170.00016.39
7.3.210.0120.00916.35
7.3.200.0090.00919.39
7.3.190.0110.00616.26
7.3.180.0030.01416.52
7.3.170.0130.00616.57
7.3.160.0040.01416.39
7.3.120.0040.00814.82
7.2.330.0030.01416.59
7.2.320.0080.01316.56
7.2.310.0100.00616.55
7.2.300.0090.00916.48
7.2.290.0100.00816.38
7.2.110.0250.00616.45
7.2.60.0040.01117.07
7.1.200.0070.00315.54
7.1.70.0000.00817.30
7.1.60.0070.01719.46
7.1.50.0000.01217.07
7.1.00.0070.07322.44
7.0.200.0080.00816.62
7.0.140.0030.07321.98
7.0.60.0130.06319.93
7.0.50.0000.04717.85
7.0.40.0030.07720.12
7.0.30.0230.04320.09
7.0.20.0300.06320.20
7.0.10.0170.08020.02
7.0.00.0100.04020.00
5.6.280.0070.07020.90
5.6.210.0130.07320.54
5.6.200.0070.04018.16
5.6.190.0170.07320.57
5.6.180.0500.07320.77
5.6.170.0470.07720.52
5.6.160.0000.09320.70
5.6.150.0030.04018.21
5.6.140.0100.05318.18
5.6.130.0100.08018.10
5.6.120.0070.08020.95
5.6.110.0130.08321.01
5.6.100.0130.08021.09
5.6.90.0200.07721.07
5.6.80.0030.08020.53
5.5.350.0130.03020.46
5.5.340.0000.05017.92
5.5.330.0170.07720.25
5.5.320.0300.08020.31
5.5.310.0200.07720.34
5.5.300.0200.03718.00
5.5.290.0070.08017.98
5.5.280.0070.03720.77
5.5.270.0030.05020.63
5.5.260.0100.08020.96
5.5.250.0070.08320.70
5.5.240.0030.07720.34
5.4.450.0100.06019.39
5.4.440.0100.06019.23
5.4.430.0830.06019.51
5.4.420.1070.05319.66
5.4.410.1030.05319.36
5.4.400.0900.05718.99
5.4.390.1000.06019.12
5.4.380.0400.07018.54
5.4.370.0370.04318.70
5.4.360.0270.05018.63
5.4.350.0230.06718.64
5.4.340.0330.05018.73
5.4.320.0090.04112.46
5.4.310.0060.04412.45
5.4.300.0110.04812.46
5.4.290.0110.04512.45
5.4.280.0110.03612.35
5.4.270.0050.04812.35
5.4.260.0090.04312.35
5.4.250.0150.05212.35
5.4.240.0100.04112.35
5.4.230.0140.05112.34
5.4.220.0110.05312.34
5.4.210.0110.05112.34
5.4.200.0060.04012.34
5.4.190.0120.03412.34
5.4.180.0070.05112.34
5.4.170.0080.05212.35
5.4.160.0090.03812.34
5.4.150.0110.05212.34
5.4.140.0120.04912.03
5.4.130.0050.04812.02
5.4.120.0080.04111.97
5.4.110.0110.03511.97
5.4.100.0060.04411.96
5.4.90.0060.04511.96
5.4.80.0120.04211.96
5.4.70.0080.05011.96
5.4.60.0040.05711.96
5.4.50.0050.05611.96
5.4.40.0080.03611.95
5.4.30.0060.03811.95
5.4.20.0090.04111.95
5.4.10.0090.04011.94
5.4.00.0070.04111.43
5.3.290.0040.04212.80
5.3.280.0060.04212.71
5.3.270.0080.04212.73
5.3.260.0060.05612.72
5.3.250.0100.05012.71
5.3.240.0080.05712.72
5.3.230.0100.06912.71
5.3.220.0100.05712.68
5.3.210.0070.06612.68
5.3.200.0090.05712.68
5.3.190.0080.05912.68
5.3.180.0100.05412.67
5.3.170.0100.05412.67
5.3.160.0080.05512.67
5.3.150.0080.05512.68
5.3.140.0090.05412.66
5.3.130.0100.05512.66
5.3.120.0080.05812.66
5.3.110.0110.05412.66
5.3.100.0080.05212.12
5.3.90.0070.05412.09
5.3.80.0080.05112.07
5.3.70.0090.04912.07
5.3.60.0100.04812.07
5.3.50.0070.05112.00
5.3.40.0140.04712.00
5.3.30.0070.05211.94
5.3.20.0140.04511.72
5.3.10.0070.03911.69
5.3.00.0120.04211.67
5.2.170.0080.0429.18
5.2.160.0110.0379.18
5.2.150.0080.0439.18
5.2.140.0050.0449.17
5.2.130.0040.0379.13
5.2.120.0080.0289.13
5.2.110.0060.0389.14
5.2.100.0080.0399.14
5.2.90.0090.0399.14
5.2.80.0090.0389.14
5.2.70.0070.0369.14
5.2.60.0070.0389.09
5.2.50.0090.0429.06
5.2.40.0110.0409.03
5.2.30.0130.0359.01
5.2.20.0080.0388.99
5.2.10.0130.0368.92
5.2.00.0100.0358.78
5.1.60.0070.0318.06
5.1.50.0070.0338.06
5.1.40.0060.0298.04
5.1.30.0100.0278.39
5.1.20.0060.0388.41
5.1.10.0070.0268.14
5.1.00.0050.0288.14
5.0.50.0060.0216.61
5.0.40.0020.0226.48
5.0.30.0070.0396.29
5.0.20.0050.0286.25
5.0.10.0040.0296.23
5.0.00.0060.0406.23
4.4.90.0020.0174.77
4.4.80.0040.0184.76
4.4.70.0030.0164.75
4.4.60.0060.0144.75
4.4.50.0040.0154.77
4.4.40.0030.0264.71
4.4.30.0030.0164.75
4.4.20.0030.0174.84
4.4.10.0030.0174.85
4.4.00.0050.0244.76
4.3.110.0030.0174.67
4.3.100.0010.0184.67
4.3.90.0030.0164.63
4.3.80.0050.0234.59
4.3.70.0050.0134.63
4.3.60.0020.0154.63
4.3.50.0030.0164.63
4.3.40.0020.0254.54
4.3.30.0040.0173.28
4.3.20.0040.0193.26
4.3.10.0020.0163.21
4.3.00.0130.0177.63

preferences:
51.18 ms | 400 KiB | 5 Q