3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = '$𝄞𝄞'; $array = str_split($string); foreach ($array as $char) { var_dump(mb_strlen($char)); }

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)
8.3.60.0070.00718.43
8.3.50.0240.00921.95
8.3.40.0110.00418.51
8.3.30.0110.00718.92
8.3.20.0050.00220.21
8.3.10.0080.00023.70
8.3.00.0000.00819.25
8.2.180.0000.01516.50
8.2.170.0110.00422.96
8.2.160.0070.00720.35
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0080.00026.16
8.2.120.0070.00322.11
8.2.110.0090.00021.86
8.2.100.0040.00717.72
8.2.90.0060.00319.24
8.2.80.0050.00317.97
8.2.70.0000.00817.63
8.2.60.0000.00817.77
8.2.50.0000.00818.07
8.2.40.0090.00020.07
8.2.30.0020.00518.14
8.2.20.0040.00417.55
8.2.10.0040.00418.02
8.2.00.0030.00617.66
8.1.280.0140.00325.92
8.1.270.0030.00623.89
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0060.00318.87
8.1.230.0080.00319.15
8.1.220.0030.00517.79
8.1.210.0000.00718.77
8.1.200.0040.00717.35
8.1.190.0000.00817.10
8.1.180.0050.00318.10
8.1.170.0000.00818.39
8.1.160.0080.00022.01
8.1.150.0040.00418.88
8.1.140.0040.00417.45
8.1.130.0030.00317.88
8.1.120.0000.00717.54
8.1.110.0040.00417.34
8.1.100.0070.00017.33
8.1.90.0040.00417.45
8.1.80.0070.00017.44
8.1.70.0000.00717.41
8.1.60.0040.00417.54
8.1.50.0080.00017.58
8.1.40.0080.00017.50
8.1.30.0000.00817.62
8.1.20.0050.00317.77
8.1.10.0070.00017.56
8.1.00.0040.00417.32
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00818.54
8.0.270.0040.00417.31
8.0.260.0070.00017.25
8.0.250.0030.00316.99
8.0.240.0030.00317.00
8.0.230.0070.00017.07
8.0.220.0050.00216.98
8.0.210.0030.00316.96
8.0.200.0030.00317.01
8.0.190.0000.00816.97
8.0.180.0070.00016.97
8.0.170.0040.00416.89
8.0.160.0000.00716.85
8.0.150.0040.00416.80
8.0.140.0000.00716.77
8.0.130.0050.00013.43
8.0.120.0040.00416.94
8.0.110.0000.00716.84
8.0.100.0040.00416.74
8.0.90.0000.01016.93
8.0.80.0090.01616.94
8.0.70.0040.00416.85
8.0.60.0030.00516.95
8.0.50.0040.00416.88
8.0.30.0120.00916.98
8.0.20.0070.01217.40
8.0.10.0000.00816.97
8.0.00.0140.00416.65
7.4.330.0050.00015.13
7.4.320.0060.00016.35
7.4.300.0000.00816.58
7.4.290.0030.00316.49
7.4.280.0040.00316.60
7.4.270.0030.00316.63
7.4.260.0070.00316.51
7.4.250.0050.00216.55
7.4.240.0020.00516.53
7.4.230.0040.00416.42
7.4.220.0130.01316.54
7.4.210.0000.01616.49
7.4.200.0070.00016.66
7.4.160.0140.00816.28
7.4.150.0070.01017.40
7.4.140.0080.01317.86
7.4.130.0120.00916.38
7.4.120.0080.01016.40
7.4.110.0030.01416.34
7.4.100.0090.01516.54
7.4.90.0130.00416.54
7.4.80.0140.00319.39
7.4.70.0140.00416.35
7.4.60.0060.00916.53
7.4.50.0000.00516.32
7.4.40.0130.00316.50
7.4.30.0090.00616.32
7.4.00.0040.01514.77
7.3.330.0030.00313.12
7.3.320.0030.00313.10
7.3.310.0050.00216.22
7.3.300.0040.00416.21
7.3.290.0070.00916.27
7.3.280.0080.01016.26
7.3.270.0140.01017.40
7.3.260.0420.01316.57
7.3.250.0090.01116.45
7.3.240.0090.01216.32
7.3.230.0130.00416.46
7.3.210.0090.00716.38
7.3.200.0000.02119.39
7.3.190.0070.01016.56
7.3.180.0090.00616.14
7.3.170.0130.00316.27
7.3.160.0090.01416.77
7.3.10.0030.01016.63
7.3.00.0130.00016.45
7.2.330.0040.01316.55
7.2.320.0030.01316.64
7.2.310.0110.00716.44
7.2.300.0060.01616.44
7.2.290.0120.00616.72
7.2.130.0090.00316.91
7.2.120.0100.00016.98
7.2.110.0080.00417.09
7.2.100.0030.01016.86
7.2.90.0070.00717.06
7.2.80.0030.00616.81
7.2.70.0060.01016.82
7.2.60.0060.00916.92
7.2.50.0040.00816.95
7.2.40.0090.00617.05
7.2.30.0000.01317.01
7.2.20.0000.01216.94
7.2.10.0030.01416.85
7.2.00.0100.00718.11
7.1.250.0040.01115.75
7.1.100.0500.00415.73
7.1.70.0030.00617.03
7.1.60.0170.00719.11
7.1.50.0170.01016.77
7.1.00.0030.07322.40
7.0.200.0030.00616.71
7.0.140.0100.06322.18
7.0.60.0130.07719.95
7.0.50.0070.05717.86
7.0.40.0100.04320.19
7.0.30.0270.07320.30
7.0.20.0170.05320.13
7.0.10.0000.05019.99
7.0.00.0200.06020.18
5.6.280.0000.07721.04
5.6.210.0070.07720.52
5.6.200.0030.09018.16
5.6.190.0000.09020.43
5.6.180.0030.08720.67
5.6.170.0270.05020.46
5.6.160.0070.06020.45
5.6.150.0070.07318.20
5.6.140.0030.07718.21
5.6.130.0000.04318.09
5.6.120.0070.05020.98
5.6.110.0100.07321.11
5.6.100.0030.04020.98
5.6.90.0070.08720.97
5.6.80.0070.05020.28
5.6.70.4370.04020.51
5.5.350.0170.07320.49
5.5.340.0230.06317.92
5.5.330.0100.04020.58
5.5.320.0200.04720.26
5.5.310.0230.08320.12
5.5.300.0030.07318.01
5.5.290.0000.04317.90
5.5.280.0070.04720.67
5.5.270.0000.05320.75
5.5.260.0130.07720.77
5.5.250.0070.07720.59
5.5.240.0230.04020.13
5.4.450.0130.05319.50
5.4.440.0630.06719.48
5.4.430.0670.07319.27
5.4.420.0630.00019.25
5.4.410.0630.00019.20
5.4.400.0870.00019.02
5.4.390.0630.00019.07
5.4.380.0670.00019.13
5.4.370.0630.00018.97
5.4.360.0630.00019.16
5.4.350.0700.00019.13
5.4.340.0060.04211.97
5.4.320.0040.04012.46
5.4.310.0080.04412.45
5.4.300.0070.04212.45
5.4.290.0110.04712.45
5.4.280.0110.03412.35
5.4.270.0130.04312.35
5.4.260.0100.03912.35
5.4.250.0100.04512.35
5.4.240.0110.04712.35
5.4.230.0100.04912.34
5.4.220.0110.05512.34
5.4.210.0150.05412.34
5.4.200.0100.04012.34
5.4.190.0080.03812.34
5.4.180.0070.04212.34
5.4.170.0060.03912.35
5.4.160.0190.04712.34
5.4.150.0060.04612.34
5.4.140.0090.03512.03
5.4.130.0080.03712.01
5.4.120.0060.06311.97
5.4.110.0080.03811.96
5.4.100.0060.04011.97
5.4.90.0080.06311.96
5.4.80.0100.04711.97
5.4.70.0080.04211.96
5.4.60.0060.03611.96
5.4.50.0100.03111.97
5.4.40.0040.03711.95
5.4.30.0080.04011.95
5.4.20.0070.04411.95
5.4.10.0090.03611.95
5.4.00.0090.04211.44
5.3.290.0090.04112.80
5.3.280.0100.04112.70
5.3.270.0080.04412.72
5.3.260.0130.04812.72
5.3.250.0070.05312.71
5.3.240.0130.06012.72
5.3.230.0120.03912.71
5.3.220.0060.04012.68
5.3.210.0090.05812.68
5.3.200.0040.04712.68
5.3.190.0060.04012.68
5.3.180.0100.03312.67
5.3.170.0070.04012.67
5.3.160.0090.03412.67
5.3.150.0060.03912.68
5.3.140.0100.05212.66
5.3.130.0080.05412.66
5.3.120.0050.04212.66
5.3.110.0070.05412.66
5.3.100.0080.04012.12
5.3.90.0070.03612.09
5.3.80.0090.03812.07
5.3.70.0100.03912.07
5.3.60.0150.04512.07
5.3.50.0080.03712.00
5.3.40.0090.03612.00
5.3.30.0050.04511.94
5.3.20.0120.05111.72
5.3.10.0040.04311.69
5.3.00.0090.03611.68
5.2.170.0060.0309.18
5.2.160.0050.0329.18
5.2.150.0060.0369.18
5.2.140.0050.0319.18
5.2.130.0060.0309.14
5.2.120.0050.0329.14
5.2.110.0070.0279.14
5.2.100.0030.0359.14
5.2.90.0140.0649.14
5.2.80.0100.0469.14
5.2.70.0100.0379.14
5.2.60.0080.0389.09
5.2.50.0060.0339.05
5.2.40.0060.0309.03
5.2.30.0070.0309.01
5.2.20.0050.0319.00
5.2.10.0100.0478.92
5.2.00.0050.0388.77
5.1.60.0070.0358.06
5.1.50.0060.0338.05
5.1.40.0040.0278.04
5.1.30.0060.0298.39
5.1.20.0080.0258.41
5.1.10.0060.0248.13
5.1.00.0070.0278.14
5.0.50.0060.0266.62
5.0.40.0050.0226.48
5.0.30.0030.0366.29
5.0.20.0020.0476.26
5.0.10.0050.0246.24
5.0.00.0060.0306.23
4.4.90.0050.0184.78
4.4.80.0030.0204.75
4.4.70.0020.0174.75
4.4.60.0020.0164.75
4.4.50.0040.0184.77
4.4.40.0030.0294.71
4.4.30.0040.0174.76
4.4.20.0050.0214.84
4.4.10.0060.0154.85
4.4.00.0030.0254.76
4.3.110.0030.0164.67
4.3.100.0010.0184.67
4.3.90.0030.0154.64
4.3.80.0040.0244.58
4.3.70.0040.0174.63
4.3.60.0040.0214.63
4.3.50.0050.0224.63
4.3.40.0040.0304.53
4.3.30.0020.0193.28
4.3.20.0040.0193.25
4.3.10.0050.0163.21
4.3.00.0130.0206.70

preferences:
33.9 ms | 401 KiB | 5 Q