3v4l.org

run code in 300+ PHP versions simultaneously
<?php $text = "Some string with text"; echo mb_strlen($text, 'UTF-8'); echo mb_substr($text, 0, 100, 'UTF-8');

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)
8.3.60.0160.00318.30
8.3.50.0050.01317.16
8.3.40.0040.01118.54
8.3.30.0120.00318.60
8.3.20.0040.00418.70
8.3.10.0060.00318.51
8.3.00.0030.00619.38
8.2.180.0120.00616.38
8.2.170.0040.01122.96
8.2.160.0090.00618.82
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0040.00420.93
8.2.110.0080.00020.35
8.2.100.0040.00717.78
8.2.90.0080.00017.75
8.2.80.0040.00418.82
8.2.70.0080.00017.50
8.2.60.0080.00017.50
8.2.50.0030.00617.93
8.2.40.0030.00519.35
8.2.30.0030.00617.71
8.2.20.0080.00317.60
8.2.10.0040.00417.66
8.2.00.0050.00217.67
8.1.280.0070.01325.92
8.1.270.0060.00323.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00423.75
8.1.230.0040.00820.77
8.1.220.0030.00518.47
8.1.210.0050.00518.77
8.1.200.0080.00017.23
8.1.190.0040.00417.00
8.1.180.0080.00018.10
8.1.170.0040.00417.62
8.1.160.0000.00918.92
8.1.150.0050.00218.50
8.1.140.0070.00017.41
8.1.130.0000.00717.22
8.1.120.0000.00817.43
8.1.110.0040.00417.39
8.1.100.0050.00217.29
8.1.90.0040.00417.31
8.1.80.0040.00417.32
8.1.70.0050.00217.39
8.1.60.0040.00417.50
8.1.50.0000.00717.41
8.1.40.0030.00617.53
8.1.30.0030.00617.65
8.1.20.0050.00317.63
8.1.10.0000.00817.60
8.1.00.0030.00717.34
8.0.300.0000.00718.77
8.0.290.0040.00416.75
8.0.280.0030.00518.61
8.0.270.0000.00717.29
8.0.260.0000.00716.78
8.0.250.0000.00717.05
8.0.240.0000.00716.96
8.0.230.0030.00316.80
8.0.220.0030.00316.84
8.0.210.0030.00316.73
8.0.200.0070.00016.91
8.0.190.0060.00316.83
8.0.180.0040.00416.82
8.0.170.0000.00716.75
8.0.160.0050.00216.90
8.0.150.0030.00516.84
8.0.140.0080.00316.82
8.0.130.0030.00313.23
8.0.120.0000.00716.82
8.0.110.0000.00716.85
8.0.100.0020.00516.86
8.0.90.0000.00716.87
8.0.80.0110.01116.82
8.0.70.0040.00416.73
8.0.60.0000.00916.72
8.0.50.0070.00016.88
8.0.30.0070.01017.23
8.0.20.0100.00816.98
8.0.10.0070.00016.80
8.0.00.0090.00916.68
7.4.330.0000.00512.93
7.4.320.0040.00416.57
7.4.300.0030.00316.57
7.4.290.0030.00316.45
7.4.280.0090.00316.41
7.4.270.0040.00416.59
7.4.260.0000.00613.15
7.4.250.0000.01016.55
7.4.240.0050.00216.43
7.4.230.0050.00516.61
7.4.220.0030.01616.32
7.4.210.0070.00716.45
7.4.200.0030.00516.43
7.4.190.0040.00416.61
7.4.160.0090.00616.35
7.4.150.0060.01016.61
7.4.140.0050.01516.32
7.4.130.0110.00416.51
7.4.120.0130.00316.22
7.4.110.0090.00916.45
7.4.100.0100.01316.36
7.4.90.0090.00916.31
7.4.80.0160.00819.39
7.4.70.0140.00316.50
7.4.60.0090.00916.48
7.4.50.0060.00316.24
7.4.40.0060.00916.52
7.4.30.0110.01116.35
7.4.00.0030.01014.65
7.3.330.0000.00512.97
7.3.320.0070.00012.95
7.3.310.0040.00415.95
7.3.300.0000.00616.04
7.3.290.0070.00716.11
7.3.280.0050.01416.06
7.3.270.0090.00816.05
7.3.260.0140.00716.07
7.3.250.0110.01016.20
7.3.240.0030.01316.14
7.3.230.0030.01416.18
7.3.210.0100.01016.14
7.3.200.0110.00516.28
7.3.190.0100.00716.07
7.3.180.0140.00716.05
7.3.170.0090.00616.09
7.3.160.0100.01316.50
7.3.120.0060.00914.37
7.2.330.0090.00916.64
7.2.320.0100.01316.53
7.2.310.0170.00716.23
7.2.300.0030.01516.64
7.2.290.0100.00716.49
7.2.60.0070.00816.81
7.2.00.0040.00719.14
7.1.200.0040.00715.63
7.1.100.0070.01118.14
7.1.70.0000.00716.77
7.1.60.0040.01919.30
7.1.50.0040.01916.84
7.1.00.0000.07722.32
7.0.200.0050.00316.58
7.0.140.0030.07022.12
7.0.120.0130.06322.01
7.0.60.0070.03720.06
7.0.50.0070.03717.66
7.0.40.0070.06020.30
7.0.30.0270.06020.17
7.0.20.0100.04720.17
7.0.10.0130.06320.08
7.0.00.0030.06020.19
5.6.280.0130.06320.77
5.6.210.0030.08320.54
5.6.200.0070.06318.13
5.6.190.0070.07720.41
5.6.180.0270.07020.35
5.6.170.0200.05320.45
5.6.160.0130.07720.40
5.6.150.0070.04718.18
5.6.140.0030.04018.11
5.6.130.0030.04718.18
5.6.120.0030.07720.99
5.6.110.0130.07720.88
5.6.100.0030.07321.00
5.6.90.0070.08720.94
5.6.80.0100.04320.40
5.5.350.0330.06320.52
5.5.340.0070.08718.02
5.5.330.0100.04320.19
5.5.320.0170.04020.29
5.5.310.0330.07020.27
5.5.300.0100.06717.97
5.5.290.0030.04017.89
5.5.280.0130.08020.73
5.5.270.0030.04720.95
5.5.260.0170.05720.67
5.5.250.0070.07020.57
5.5.240.0000.08720.28
5.4.450.0100.07719.24
5.4.440.0070.05019.26
5.4.430.0030.05019.11
5.4.420.0070.03719.41
5.4.410.0100.06319.20
5.4.400.0170.05719.14
5.4.390.0000.04318.91
5.4.380.0070.07719.03
5.4.370.0070.06718.92
5.4.360.0070.05018.91
5.4.350.0100.07018.78
5.4.340.0000.07319.00
5.4.320.0100.03718.79
5.4.310.0000.04319.18
5.4.300.0130.07319.08
5.4.290.0070.06719.14
5.4.280.0000.05318.95
5.4.270.0030.05718.78
5.4.260.0100.03019.17
5.4.250.0030.05319.07
5.4.240.0030.03719.14
5.4.230.0070.07719.17
5.4.220.0130.07318.91
5.4.210.0030.06719.09
5.4.200.0070.07719.19
5.4.190.0170.04719.07
5.4.180.0100.03319.14
5.4.170.0070.04019.11
5.4.160.0100.03719.00
5.4.150.0170.06719.06
5.4.140.0130.04016.30
5.4.130.0030.07716.24
5.4.120.0030.04316.34
5.4.110.0100.06716.34
5.4.100.0030.06716.41
5.4.90.0070.04316.29
5.4.80.0170.06016.29
5.4.70.0100.07016.13
5.4.60.0070.04016.23
5.4.50.0100.06716.20
5.4.40.0100.05716.25
5.4.30.0070.06316.32
5.4.20.0100.05716.36
5.4.10.0000.04316.38
5.4.00.0030.04715.87
5.3.290.0100.03314.68
5.3.280.0030.04714.48
5.3.270.0030.06714.69
5.3.260.0030.04014.53
5.3.250.0030.05014.62
5.3.240.0070.06014.52
5.3.230.0030.05014.52
5.3.220.0030.03714.48
5.3.210.0100.07714.38
5.3.200.0130.06314.44
5.3.190.0030.07014.35
5.3.180.0070.07314.35
5.3.170.0030.07714.50
5.3.160.0070.07314.51
5.3.150.0130.05314.48
5.3.140.0070.06714.45
5.3.130.0200.06014.44
5.3.120.0070.05014.48
5.3.110.0070.08014.63
5.3.100.0070.07713.96
5.3.90.0130.07013.94
5.3.80.0100.06314.10
5.3.70.0070.07313.95
5.3.60.0070.07714.01
5.3.50.0100.04313.96
5.3.40.0030.04313.87
5.3.30.0030.03713.85
5.3.20.0070.07313.65
5.3.10.0070.04013.60
5.3.00.0070.04713.58
5.2.170.0030.06711.05
5.2.160.0130.04311.11
5.2.150.0000.03711.04
5.2.140.0100.02311.14
5.2.130.0070.03311.00
5.2.120.0030.02711.03
5.2.110.0000.03010.92
5.2.100.0030.03311.04
5.2.90.0000.04011.02
5.2.80.0000.03311.17
5.2.70.0030.02710.91
5.2.60.0000.03011.05
5.2.50.0070.02310.98
5.2.40.0000.03311.14
5.2.30.0000.03310.94
5.2.20.0030.04010.90
5.2.10.0000.03010.81
5.2.00.0000.03710.66
5.1.60.0000.02710.04
5.1.50.0000.02710.03
5.1.40.0130.0239.87
5.1.30.0030.02310.38
5.1.20.0030.02310.39
5.1.10.0000.02710.01
5.1.00.0000.02710.13
5.0.50.0000.0208.55
5.0.40.0030.0178.31
5.0.30.0000.0338.23
5.0.20.0000.0208.15
5.0.10.0000.0208.21
5.0.00.0000.0308.12
4.4.90.0030.0137.68
4.4.80.0000.0237.68
4.4.70.0000.0207.68
4.4.60.0030.0137.68
4.4.50.0030.0137.68
4.4.40.0000.0277.68
4.4.30.0000.0177.68
4.4.20.0030.0137.68
4.4.10.0070.0137.68
4.4.00.0000.0237.68
4.3.110.0030.0137.68
4.3.100.0000.0137.68
4.3.90.0000.0137.68
4.3.80.0000.0237.68
4.3.70.0000.0137.68
4.3.60.0000.0237.68
4.3.50.0000.0177.68
4.3.40.0030.0207.68
4.3.30.0000.0137.68
4.3.20.0030.0137.68
4.3.10.0000.0177.68
4.3.00.0000.0137.68

preferences:
41.61 ms | 401 KiB | 5 Q