3v4l.org

run code in 300+ PHP versions simultaneously
<?php mb_internal_encoding("UTF-8"); $mb_string = 'žščř'; $l=mb_strlen($mb_string); for($i=0;$i<$l;$i++) { print(mb_substr($mb_string,$i,1)."<br/>"); } $array = mb_split($mb_string); echo $array[0]; ?>

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)
8.3.60.0110.00718.30
8.3.50.0050.01021.96
8.3.40.0150.00618.97
8.3.30.0080.00819.04
8.3.20.0040.00420.15
8.3.10.0040.00422.02
8.3.00.0040.00422.23
8.2.180.0070.01418.08
8.2.170.0100.00722.96
8.2.160.0030.01620.99
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00419.49
8.2.110.0060.00322.13
8.2.100.0120.00017.72
8.2.90.0080.00019.27
8.2.80.0040.00418.05
8.2.70.0060.00817.50
8.2.60.0040.00417.93
8.2.50.0080.00018.07
8.2.40.0070.00018.16
8.2.30.0040.00418.05
8.2.20.0070.00017.59
8.2.10.0050.00217.62
8.2.00.0000.00917.66
8.1.280.0090.00625.92
8.1.270.0040.00423.71
8.1.260.0040.00426.35
8.1.250.0090.00028.09
8.1.240.0060.00324.02
8.1.230.0080.00419.16
8.1.220.0060.00317.74
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0040.00417.53
8.1.180.0030.00518.10
8.1.170.0080.00018.61
8.1.160.0000.00721.95
8.1.150.0040.00418.50
8.1.140.0050.00320.81
8.1.130.0000.00717.82
8.1.120.0000.00717.45
8.1.110.0040.00417.43
8.1.100.0040.00417.44
8.1.90.0000.00717.34
8.1.80.0030.00317.37
8.1.70.0000.00617.38
8.1.60.0040.00417.62
8.1.50.0050.00217.55
8.1.40.0070.00017.53
8.1.30.0040.00417.53
8.1.20.0000.00917.75
8.1.10.0040.00417.64
8.1.00.0000.01017.58
8.0.300.0040.00418.77
8.0.290.0000.00717.05
8.0.280.0030.00318.42
8.0.270.0000.00817.23
8.0.260.0060.00017.00
8.0.250.0000.00717.04
8.0.240.0000.00717.01
8.0.230.0000.00717.09
8.0.220.0030.00317.05
8.0.210.0030.00417.01
8.0.200.0040.00417.04
8.0.190.0080.00016.96
8.0.180.0050.00217.05
8.0.170.0040.00417.04
8.0.160.0000.00816.96
8.0.150.0000.00816.94
8.0.140.0000.00817.00
8.0.130.0000.00513.48
8.0.120.0040.00416.97
8.0.110.0040.00416.95
8.0.100.0000.00817.02
8.0.90.0040.00417.00
8.0.80.0110.00716.93
8.0.70.0040.00416.88
8.0.60.0000.00717.06
8.0.50.0050.00216.84
8.0.30.0070.01517.06
8.0.20.0130.00517.40
8.0.10.0040.00416.80
8.0.00.0110.00716.71
7.4.330.0050.00015.09
7.4.320.0030.00316.34
7.4.300.0030.00516.48
7.4.290.0070.00016.43
7.4.280.0070.00016.50
7.4.270.0000.00816.42
7.4.260.0000.00716.48
7.4.250.0030.00316.30
7.4.240.0050.00216.39
7.4.230.0000.00716.53
7.4.220.0100.00716.45
7.4.210.0090.00616.41
7.4.200.0030.00316.34
7.4.190.0030.00316.39
7.4.160.0060.01016.54
7.4.150.0140.00317.40
7.4.140.0110.00917.86
7.4.130.0060.01116.50
7.4.120.0110.00616.40
7.4.110.0030.01316.54
7.4.100.0150.00416.54
7.4.90.0060.01216.54
7.4.80.0070.01319.39
7.4.70.0080.00816.44
7.4.60.0030.01816.55
7.4.50.0040.00416.40
7.4.40.0040.01522.77
7.4.30.0090.01216.51
7.4.00.0030.01415.14
7.3.330.0000.00513.14
7.3.320.0020.00213.30
7.3.310.0000.00816.23
7.3.300.0070.00016.27
7.3.290.0090.00916.38
7.3.280.0110.00816.28
7.3.270.0080.00817.40
7.3.260.0120.00616.51
7.3.250.0100.00716.36
7.3.240.0100.00716.46
7.3.230.0030.01616.39
7.3.210.0090.00916.41
7.3.200.0040.01219.39
7.3.190.0060.01216.37
7.3.180.0000.01716.46
7.3.170.0060.01016.59
7.3.160.0040.01616.50
7.3.120.0140.00314.66
7.2.330.0070.01016.71
7.2.320.0090.00616.70
7.2.310.0090.00616.73
7.2.300.0030.01316.73
7.2.290.0130.00316.45
7.2.00.0040.01119.58
7.1.100.0030.00618.04
7.1.70.0030.00717.11
7.1.60.0070.01719.82
7.1.50.0090.00317.05
7.1.00.0070.07022.51
7.0.200.0240.00016.93
7.0.140.0000.07722.08
7.0.60.0100.08020.04
7.0.50.0030.06317.86
7.0.40.0130.08020.27
7.0.30.0300.07720.09
7.0.20.0200.08320.17
7.0.10.0270.05320.18
7.0.00.0170.06320.13
5.6.280.0130.06320.91
5.6.210.0070.08020.50
5.6.200.0130.03318.23
5.6.190.0170.08020.45
5.6.180.0100.07320.66
5.6.170.0330.06720.48
5.6.160.0100.04320.37
5.6.150.0100.06718.04
5.6.140.0030.08718.21
5.6.130.0030.04318.21
5.6.120.0070.08320.98
5.6.110.0030.04020.98
5.6.100.0000.04320.95
5.6.90.0070.04021.00
5.6.80.0070.07720.40
5.6.70.0400.05720.44
5.5.350.0070.04720.32
5.5.340.0100.07717.88
5.5.330.0000.05020.20
5.5.320.0400.04720.13
5.5.310.0130.07020.12
5.5.300.0030.04317.94
5.5.290.0070.08717.92
5.5.280.0030.06720.87
5.5.270.0030.09020.95
5.5.260.0130.07020.72
5.5.250.0100.03320.66
5.5.240.0070.08020.08
5.4.450.0200.06019.42
5.4.440.0230.06719.21
5.4.430.0370.05319.13
5.4.420.0370.05319.13
5.4.410.0230.07019.00
5.4.400.0270.07319.16
5.4.390.0270.07018.92
5.4.380.0100.06019.16
5.4.370.0270.06719.06
5.4.360.0270.06019.25
5.4.350.0170.04318.93
5.4.340.0270.07319.16
5.4.320.0270.05718.80
5.4.310.0400.04719.08
5.4.300.0270.06718.80
5.4.290.0300.06019.09
5.4.280.0270.06719.08
5.4.270.0200.07019.23
5.4.260.0330.04719.21
5.4.250.0470.06018.78
5.4.240.0370.07018.87
5.4.230.0230.04319.07
5.4.220.0170.04719.08
5.4.210.0130.08719.09
5.4.200.0230.05719.23
5.4.190.0230.04319.23
5.4.180.0200.03718.87
5.4.170.0270.07019.08
5.4.160.0270.07018.86
5.4.150.0230.07319.06
5.4.140.0270.06316.23
5.4.130.0200.03716.29
5.4.120.0330.05016.25
5.4.110.0230.04316.39
5.4.100.0130.05316.50
5.4.90.0130.05016.34
5.4.80.0100.04316.43
5.4.70.0200.05016.48
5.4.60.0130.05716.28
5.4.50.0200.07016.45
5.4.40.0170.07716.18
5.4.30.0200.06716.18
5.4.20.0470.04016.31
5.4.10.0200.06316.40
5.4.00.0330.04015.70
5.3.290.0270.05014.69
5.3.280.0170.06014.44
5.3.270.0330.07014.55
5.3.260.0270.05014.51
5.3.250.0270.07014.65
5.3.240.0270.06714.54
5.3.230.0230.06314.44
5.3.220.0230.07014.40
5.3.210.0200.05014.49
5.3.200.0270.06714.52
5.3.190.0200.05714.43
5.3.180.0230.06014.51
5.3.170.0130.05014.41
5.3.160.0200.05714.42
5.3.150.0170.04014.51
5.3.140.0200.07314.58
5.3.130.0230.07014.59
5.3.120.0200.05314.38
5.3.110.0270.05714.39
5.3.100.0170.08014.02
5.3.90.0230.04713.89
5.3.80.0400.04714.06
5.3.70.0230.07014.11
5.3.60.0170.05713.85
5.3.50.0230.03713.93
5.3.40.0270.04013.97
5.3.30.0300.04313.76
5.3.20.0230.06713.78
5.3.10.0170.05713.63
5.3.00.0230.07013.58
5.2.170.0170.06012.31
5.2.160.0200.05712.31
5.2.150.0230.02712.31
5.2.140.0300.03712.31
5.2.130.0170.05012.31
5.2.120.0170.06012.31
5.2.110.0270.02712.31
5.2.100.0170.04012.31
5.2.90.0170.06012.31
5.2.80.0230.03312.31
5.2.70.0230.02712.31
5.2.60.0270.05312.31
5.2.50.0370.04312.31
5.2.40.0170.05012.31
5.2.30.0170.05712.31
5.2.20.0170.05712.31
5.2.10.0130.06012.31
5.2.00.0230.05312.31
5.1.60.0130.05012.31
5.1.50.0170.04312.31
5.1.40.0170.04712.31
5.1.30.0200.04312.31
5.1.20.0170.05312.31
5.1.10.0430.03312.31
5.1.00.0130.04012.31
5.0.50.0130.04312.31
5.0.40.0100.04012.31
5.0.30.0100.06312.31
5.0.20.0070.03012.31
5.0.10.0100.01712.31
5.0.00.0170.05712.31
4.4.90.0130.02312.31
4.4.80.0100.02712.31
4.4.70.0070.02312.31
4.4.60.0070.02712.31
4.4.50.0100.01712.31
4.4.40.0070.03312.31
4.4.30.0070.03012.31
4.4.20.0070.03312.31
4.4.10.0070.03712.31
4.4.00.0070.05312.31
4.3.110.0130.02712.31
4.3.100.0130.03012.31
4.3.90.0070.01312.31
4.3.80.0130.05012.31
4.3.70.0070.03012.31
4.3.60.0130.01712.31
4.3.50.0070.02312.31
4.3.40.0130.03712.31
4.3.30.0030.02712.31
4.3.20.0030.02712.31
4.3.10.0030.02312.31
4.3.00.0030.03712.31

preferences:
42.13 ms | 401 KiB | 5 Q