3v4l.org

run code in 300+ PHP versions simultaneously
<?php mb_substitute_character('a'); var_dump(mb_convert_encoding(chr(190), 'UTF-8', '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)
8.3.60.0120.00618.43
8.3.50.0080.00721.20
8.3.40.0110.00418.82
8.3.30.0000.01418.96
8.3.20.0070.00020.10
8.3.10.0060.00321.92
8.3.00.0070.00020.52
8.2.180.0090.00616.63
8.2.170.0110.00722.96
8.2.160.0110.00418.80
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0110.00726.16
8.2.120.0080.00019.41
8.2.110.0090.00020.33
8.2.100.0000.01117.79
8.2.90.0000.00817.97
8.2.80.0050.00317.97
8.2.70.0060.00317.50
8.2.60.0000.00817.55
8.2.50.0030.00618.07
8.2.40.0000.00817.91
8.2.30.0040.00418.04
8.2.20.0000.00717.52
8.2.10.0050.00217.55
8.2.00.0080.00017.76
8.1.280.0100.01025.92
8.1.270.0040.00418.50
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0040.00422.14
8.1.230.0070.00420.91
8.1.220.0040.00417.74
8.1.210.0040.00418.95
8.1.200.0040.00417.23
8.1.190.0020.00517.41
8.1.180.0080.00018.65
8.1.170.0040.00418.56
8.1.160.0070.00022.19
8.1.150.0070.00018.41
8.1.140.0050.00217.23
8.1.130.0120.00017.75
8.1.120.0000.00817.21
8.1.110.0040.00417.25
8.1.100.0040.00417.29
8.1.90.0000.00817.29
8.1.80.0050.00217.22
8.1.70.0030.00317.23
8.1.60.0070.00317.46
8.1.50.0030.00517.42
8.1.40.0030.00517.47
8.1.30.0040.00417.42
8.1.20.0050.00317.55
8.1.10.0000.00817.36
8.1.00.0000.00717.43
8.0.300.0000.00720.12
8.0.290.0070.00017.18
8.0.280.0060.00018.29
8.0.270.0070.00017.19
8.0.260.0000.00616.72
8.0.250.0070.00016.95
8.0.240.0050.00516.97
8.0.230.0070.00016.94
8.0.220.0030.00316.87
8.0.210.0040.00416.85
8.0.200.0070.00016.85
8.0.190.0000.00816.90
8.0.180.0050.00316.89
8.0.170.0040.00416.92
8.0.160.0030.00616.81
8.0.150.0040.00416.88
8.0.140.0050.00316.82
8.0.130.0030.00313.30
8.0.120.0000.00716.84
8.0.110.0000.00716.86
8.0.100.0000.00716.66
8.0.90.0000.00716.84
8.0.80.0040.01116.86
8.0.70.0000.00716.73
8.0.60.0000.00816.73
8.0.50.0050.00316.94
8.0.30.0130.00517.01
8.0.20.0090.01017.40
8.0.10.0040.00417.06
8.0.00.0100.00716.84
7.4.330.0030.00315.00
7.4.320.0000.00616.33
7.4.300.0030.00316.52
7.4.290.0090.00016.35
7.4.280.0030.00316.43
7.4.270.0000.00716.54
7.4.260.0030.00316.42
7.4.250.0050.00216.41
7.4.240.0030.00316.40
7.4.230.0000.00716.59
7.4.220.0070.01116.46
7.4.210.0090.00616.55
7.4.200.0000.00716.48
7.4.190.0000.00716.29
7.4.160.0090.00616.21
7.4.150.0110.00717.40
7.4.140.0100.00817.86
7.4.130.0130.00616.29
7.4.120.0020.01516.56
7.4.110.0030.01316.26
7.4.100.0170.00316.55
7.4.90.0090.01316.55
7.4.80.0000.01819.39
7.4.70.0060.01016.52
7.4.60.0070.01016.27
7.4.50.0000.00916.28
7.4.40.0130.00022.77
7.4.30.0070.01016.30
7.4.00.0060.00614.97
7.3.330.0030.00313.18
7.3.320.0030.00313.25
7.3.310.0040.00416.09
7.3.300.0030.00316.25
7.3.290.0060.01016.21
7.3.280.0100.00616.30
7.3.270.0060.01217.40
7.3.260.0090.00916.29
7.3.250.0110.00816.26
7.3.240.0100.00716.54
7.3.230.0030.01316.39
7.3.210.0090.00916.27
7.3.200.0100.00619.39
7.3.190.0060.01016.34
7.3.180.0060.01116.15
7.3.170.0080.00816.31
7.3.160.0040.01216.31
7.3.120.0040.01414.50
7.2.330.0160.00316.45
7.2.320.0090.00916.46
7.2.310.0090.01216.37
7.2.300.0070.01016.40
7.2.290.0120.00616.50
7.2.00.0060.00919.36
7.1.100.0000.01117.92
7.1.70.0030.00316.85
7.1.60.0110.01519.82
7.1.50.0030.01416.80
7.1.00.0030.06722.37
7.0.200.0060.00316.66
7.0.140.0100.07021.98
7.0.60.0070.07719.85
7.0.50.0030.04017.77
7.0.40.0070.08319.90
7.0.30.0330.06720.30
7.0.20.0130.04720.04
7.0.10.0430.07720.16
7.0.00.0100.08720.33
5.6.280.0030.07321.11
5.6.210.0070.08320.56
5.6.200.0130.06718.23
5.6.190.0070.07720.60
5.6.180.3470.04320.46
5.6.170.0170.07720.50
5.6.160.0030.04320.46
5.6.150.0170.07318.16
5.6.140.0130.06718.17
5.6.130.0030.04018.17
5.6.120.0130.05721.00
5.6.110.0030.07021.00
5.6.100.0100.04720.97
5.6.90.0070.08720.96
5.6.80.0070.07720.50
5.6.70.0270.07020.41
5.5.350.0170.05720.40
5.5.340.0030.08017.95
5.5.330.0070.05020.37
5.5.320.0270.04020.29
5.5.310.0230.07720.31
5.5.300.0100.04317.91
5.5.290.0130.07317.98
5.5.280.0100.04320.89
5.5.270.0030.06020.83
5.5.260.0230.07020.75
5.5.250.0070.08020.58
5.5.240.0100.08020.18
5.4.450.0630.07019.55
5.4.440.0770.05319.49
5.4.430.0270.06019.33
5.4.420.0770.04719.58
5.4.410.0800.05319.50
5.4.400.0330.04318.72
5.4.390.0300.06018.65
5.4.380.0270.06018.56
5.4.370.0100.05318.68
5.4.360.0230.06018.62
5.4.350.0130.05718.67
5.4.340.0170.04718.70
5.4.320.0070.03712.45
5.4.310.0070.03712.45
5.4.300.0090.03612.46
5.4.290.0070.04212.45
5.4.280.0080.03712.34
5.4.270.0060.04012.34
5.4.260.0070.04912.34
5.4.250.0030.05318.77
5.4.240.0130.06018.73
5.4.230.0070.06318.88
5.4.220.0000.05718.88
5.4.210.0100.05018.92
5.4.200.0070.05318.82
5.4.190.0070.05019.02
5.4.180.0030.05718.64
5.4.170.0030.05318.87
5.4.160.0170.04018.86
5.4.150.0200.04018.71
5.4.140.0030.05316.43
5.4.130.0030.05016.27
5.4.120.0130.04316.48
5.4.110.0030.05316.25
5.4.100.0030.05316.50
5.4.90.0070.04716.28
5.4.80.0030.05316.21
5.4.70.0170.03716.47
5.4.60.0030.05016.40
5.4.50.0100.04716.31
5.4.40.0100.04716.22
5.4.30.0070.05016.49
5.4.20.0100.04716.16
5.4.10.0070.05016.39
5.4.00.0070.04715.72
5.3.290.0130.04712.80
5.3.280.0130.04314.61
5.3.270.0030.05714.62
5.3.260.0030.07014.75
5.3.250.0100.04714.75
5.3.240.0100.04714.69
5.3.230.0030.05314.61
5.3.220.0030.05314.41
5.3.210.0100.05314.48
5.3.200.0070.05014.71
5.3.190.0000.05714.45
5.3.180.0030.05314.26
5.3.170.0130.04314.65
5.3.160.0100.04714.60
5.3.150.0100.04314.55
5.3.140.0130.04314.57
5.3.130.0200.04014.55
5.3.120.0030.05714.55
5.3.110.0030.05714.42
5.3.100.0000.05714.04
5.3.90.0030.05314.01
5.3.80.0130.04014.10
5.3.70.0030.05314.03
5.3.60.0070.05313.86
5.3.50.0030.05014.04
5.3.40.0100.04713.83
5.3.30.0100.04313.68
5.3.20.0130.04313.61
5.3.10.0030.05713.74
5.3.00.0100.04713.52
5.2.170.0030.04311.14
5.2.160.0030.04011.05
5.2.150.0100.03711.14
5.2.140.0070.06011.15
5.2.130.0070.03711.03
5.2.120.0100.03711.01
5.2.110.0070.04011.10
5.2.100.0000.04711.10
5.2.90.0030.04011.11
5.2.80.0100.05711.00
5.2.70.0000.04711.02
5.2.60.0070.04311.06
5.2.50.0000.04711.02
5.2.40.0030.04311.00
5.2.30.0100.03710.73
5.2.20.0070.03711.06
5.2.10.0030.04010.62
5.2.00.0030.04010.69
5.1.60.0030.0339.93
5.1.50.0070.0379.93
5.1.40.0030.03310.12
5.1.30.0030.03710.21
5.1.20.0100.04710.25
5.1.10.0030.0379.98
5.1.00.0030.0379.95
5.0.50.0000.0308.60
5.0.40.0070.0238.33
5.0.30.0070.0508.14
5.0.20.0000.0308.14
5.0.10.0030.0308.15
5.0.00.0070.0378.24
4.4.90.0070.0177.36
4.4.80.0030.0277.36
4.4.70.0000.0237.36
4.4.60.0000.0307.36
4.4.50.0000.0237.36
4.4.40.0030.0307.36
4.4.30.0000.0337.36
4.4.20.0030.0207.36
4.4.10.0030.0207.35
4.4.00.0000.0337.35
4.3.110.0030.0207.35
4.3.100.0070.0177.35
4.3.90.0000.0237.35
4.3.80.0000.0377.35
4.3.70.0000.0237.35
4.3.60.0000.0237.35
4.3.50.0030.0207.35
4.3.40.0030.0307.35
4.3.30.0070.0177.35
4.3.20.0000.0307.35
4.3.10.0000.0237.35
4.3.00.0100.0236.77

preferences:
40.17 ms | 401 KiB | 5 Q