3v4l.org

run code in 300+ PHP versions simultaneously
<?php $firstName='kéké'; $lastName='kéké'; $firstName = mb_strtolower($firstName, 'UTF-8'); $firstName = str_replace( array( 'à', 'â', 'ä', 'á', 'ã', 'å', 'î', 'ï', 'ì', 'í', 'ô', 'ö', 'ò', 'ó', 'õ', 'ø', 'ù', 'û', 'ü', 'ú', 'é', 'è', 'ê', 'ë', 'ç', 'ÿ', 'ñ', ), array( 'a', 'a', 'a', 'a', 'a', 'a', 'i', 'i', 'i', 'i', 'o', 'o', 'o', 'o', 'o', 'o', 'u', 'u', 'u', 'u', 'e', 'e', 'e', 'e', 'c', 'y', 'n', ), $firstName ); $lastName = mb_strtolower($lastName, 'UTF-8'); $lastName = str_replace( array( 'à', 'â', 'ä', 'á', 'ã', 'å', 'î', 'ï', 'ì', 'í', 'ô', 'ö', 'ò', 'ó', 'õ', 'ø', 'ù', 'û', 'ü', 'ú', 'é', 'è', 'ê', 'ë', 'ç', 'ÿ', 'ñ', ), array( 'a', 'a', 'a', 'a', 'a', 'a', 'i', 'i', 'i', 'i', 'o', 'o', 'o', 'o', 'o', 'o', 'u', 'u', 'u', 'u', 'e', 'e', 'e', 'e', 'c', 'y', 'n', ), $lastName ); $username = strtolower( substr( preg_replace('/\s/', '', $firstName[0].$lastName), 0, 8 ) ); echo $username;

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)
8.3.40.0080.00818.91
8.3.30.0070.00719.21
8.3.20.0050.00320.31
8.3.10.0080.00021.96
8.3.00.0080.00020.67
8.2.170.0110.00422.96
8.2.160.0070.01019.33
8.2.150.0030.00524.18
8.2.140.0080.00024.66
8.2.130.0050.00326.16
8.2.120.0080.00019.77
8.2.110.0000.00922.43
8.2.100.0090.00319.70
8.2.90.0000.00819.36
8.2.80.0080.00018.03
8.2.70.0050.00517.61
8.2.60.0060.00318.05
8.2.50.0000.00818.07
8.2.40.0060.00319.95
8.2.30.0070.00018.23
8.2.20.0040.00417.91
8.2.10.0080.00017.93
8.2.00.0040.00417.93
8.1.270.0180.00022.31
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0030.00523.92
8.1.230.0000.01219.22
8.1.220.0040.00417.74
8.1.210.0050.00518.77
8.1.200.0100.00317.38
8.1.190.0070.00017.78
8.1.180.0000.00918.89
8.1.170.0040.00419.02
8.1.160.0000.00722.15
8.1.150.0040.00418.95
8.1.140.0070.00017.66
8.1.130.0000.00917.95
8.1.120.0040.00417.62
8.1.110.0040.00417.76
8.1.100.0000.00717.73
8.1.90.0040.00417.77
8.1.80.0030.00317.76
8.1.70.0000.00817.62
8.1.60.0000.00917.84
8.1.50.0000.00917.71
8.1.40.0040.00417.66
8.1.30.0050.00317.91
8.1.20.0030.00617.94
8.1.10.0040.00417.72
8.1.00.0000.00817.75
8.0.300.0070.00018.77
8.0.290.0040.00417.16
8.0.280.0030.00318.56
8.0.270.0070.00017.42
8.0.260.0030.00317.06
8.0.250.0050.00217.09
8.0.240.0040.00417.19
8.0.230.0070.00017.19
8.0.220.0050.00217.22
8.0.210.0000.00717.18
8.0.200.0000.00817.17
8.0.190.0000.00817.09
8.0.180.0000.00717.14
8.0.170.0030.00517.07
8.0.160.0050.00317.07
8.0.150.0040.00417.14
8.0.140.0050.00217.06
8.0.130.0060.00013.54
8.0.120.0080.00016.95
8.0.110.0070.00017.11
8.0.100.0050.00216.96
8.0.90.0040.00416.99
8.0.80.0130.00317.10
8.0.70.0040.00417.20
8.0.60.0040.00417.08
8.0.50.0050.00217.02
8.0.30.0110.01017.35
8.0.20.0140.00517.45
8.0.10.0040.00417.09
8.0.00.0080.01017.01
7.4.330.0030.00315.00
7.4.320.0000.00616.96
7.4.300.0070.00016.80
7.4.290.0000.00716.79
7.4.280.0030.00316.65
7.4.270.0040.00416.81
7.4.260.0050.00316.81
7.4.250.0040.00416.84
7.4.240.0040.00416.76
7.4.230.0000.00816.60
7.4.220.0060.01016.69
7.4.210.0040.01016.85
7.4.200.0000.00716.85
7.4.190.0030.00516.91
7.4.160.0090.00616.66
7.4.150.0110.00617.40
7.4.140.0110.00717.86
7.4.130.0110.00816.86
7.4.120.0050.01316.71
7.4.110.0040.01316.59
7.4.100.0120.00616.65
7.4.90.0070.01016.86
7.4.80.0030.01419.39
7.4.70.0060.01216.55
7.4.60.0030.01816.46
7.4.50.0030.00316.64
7.4.40.0060.00922.77
7.4.30.0030.01316.89
7.4.10.0060.01315.44
7.4.00.0060.01115.16
7.3.330.0000.00513.39
7.3.320.0020.00213.41
7.3.310.0040.00416.52
7.3.300.0000.00716.55
7.3.290.0070.00716.56
7.3.280.0110.00416.54
7.3.270.0060.00917.40
7.3.260.0090.00916.59
7.3.250.0100.00716.50
7.3.240.0000.01716.69
7.3.230.0080.00816.70
7.3.210.0120.00616.83
7.3.200.0060.01019.39
7.3.190.0030.01816.83
7.3.180.0060.01016.84
7.3.170.0060.01016.40
7.3.160.0160.00016.88
7.3.130.0030.01415.09
7.3.120.0040.01214.83
7.3.110.0090.00515.04
7.3.100.0070.00515.29
7.3.90.0060.00815.22
7.3.80.0050.00815.00
7.3.70.0050.00715.02
7.3.60.0030.00814.93
7.3.50.0020.01215.10
7.3.40.0060.00715.05
7.3.30.0030.00914.96
7.3.20.0000.01016.94
7.3.10.0040.01016.83
7.3.00.0060.00716.88
7.2.330.0070.01016.96
7.2.320.0110.01216.57
7.2.310.0120.00616.88
7.2.300.0070.01016.80
7.2.290.0030.01316.95
7.2.260.0030.01215.52
7.2.250.0030.01415.14
7.2.240.0040.00715.42
7.2.230.0050.01115.19
7.2.220.0080.00615.04
7.2.210.0050.01115.24
7.2.200.0050.01015.13
7.2.190.0030.01015.41
7.2.180.0050.00815.17
7.2.170.0070.01015.43
7.2.160.0000.01115.28
7.2.150.0060.01016.99
7.2.140.0090.00117.27
7.2.130.0100.00317.11
7.2.120.0040.00916.91
7.2.110.0050.00817.05
7.2.100.0100.00617.26
7.2.90.0090.00517.27
7.2.80.0060.00617.01
7.2.70.0030.01017.15
7.2.60.0070.00716.90
7.2.50.0090.00416.94
7.2.40.0100.00716.95
7.2.30.0040.00817.23
7.2.20.0090.00617.08
7.2.10.0120.00317.26
7.2.00.0060.00817.09
7.1.330.0060.00716.10
7.1.320.0070.00515.85
7.1.310.0020.01216.19
7.1.300.0090.00716.17
7.1.290.0080.00315.98
7.1.280.0050.00916.04
7.1.270.0010.01116.00
7.1.260.0080.00616.20
7.1.250.0050.01115.83
7.1.240.0040.00816.19
7.1.230.0100.00316.09
7.1.220.0060.00616.03
7.1.210.0110.00315.91
7.1.200.0080.00415.95
7.1.190.0090.00015.99
7.1.180.0060.00316.21
7.1.170.0040.00716.10
7.1.160.0000.01516.17
7.1.150.0040.01116.21
7.1.140.0070.00316.12
7.1.130.0000.01416.00
7.1.120.0080.00415.81
7.1.110.0060.00916.17
7.1.100.0030.01316.11
7.1.90.0000.01116.21
7.1.80.0070.00416.04
7.1.70.0040.00716.69
7.1.60.0080.01017.96
7.1.50.0080.01316.58
7.1.40.0040.01516.16
7.1.30.0000.01316.04
7.1.20.0040.01115.70
7.1.10.0070.01015.76
7.1.00.0060.04019.20
7.0.330.0030.01215.40
7.0.320.0070.00715.58
7.0.310.0000.00815.60
7.0.300.0040.01115.69
7.0.290.0080.00015.72
7.0.280.0090.00615.68
7.0.270.0050.00815.72
7.0.260.0080.00415.49
7.0.250.0040.01115.85
7.0.240.0060.01015.71
7.0.230.0000.01015.66
7.0.220.0070.00715.48
7.0.210.0000.01215.80
7.0.200.0050.00716.22
7.0.190.0070.00715.86
7.0.180.0100.00015.35
7.0.170.0070.01015.81
7.0.160.0000.00915.67
7.0.150.0070.00715.44
7.0.140.0030.04518.83
7.0.130.0060.00615.67
7.0.120.0040.00815.75
7.0.110.0130.00015.24
7.0.100.0070.00715.26
7.0.90.0100.01015.36
7.0.80.0030.00615.79
7.0.70.0000.01115.65
7.0.60.0050.04617.80
7.0.50.0070.03216.47
7.0.40.0070.03216.98
7.0.30.0100.03116.98
7.0.20.0150.02916.95
7.0.10.0210.03616.95
7.0.00.0070.02716.85
5.6.400.0080.00014.10
5.6.390.0100.00314.70
5.6.380.0000.00914.51
5.6.370.0070.00714.77
5.6.360.0120.00314.76
5.6.350.0000.01014.22
5.6.340.0070.00714.80
5.6.330.0030.01314.66
5.6.320.0000.01514.46
5.6.310.0100.00614.61
5.6.300.0030.00714.57
5.6.290.0030.01014.34
5.6.280.0070.03917.86
5.6.270.0110.00014.23
5.6.260.0100.00314.62
5.6.250.0100.01014.47
5.6.240.0000.01314.79
5.6.230.0030.00814.41
5.6.220.0000.01314.55
5.6.210.0050.04317.51
5.6.200.0050.04616.18
5.6.190.0100.04317.75
5.6.180.1720.02717.33
5.6.170.0250.03017.59
5.6.160.0030.05117.34
5.6.150.0090.03816.39
5.6.140.0080.04016.45
5.6.130.0070.03316.33
5.6.120.0130.04417.80
5.6.110.0070.04217.76
5.6.100.0140.04117.86
5.6.90.0050.04617.92
5.6.80.0090.04317.50
5.6.70.1650.02417.45
5.6.60.0030.01314.37
5.6.50.0120.00014.22
5.6.40.0030.00714.76
5.6.30.0060.00314.29
5.6.20.0000.01114.17
5.6.10.0070.00714.35
5.6.00.0070.00614.39
5.5.380.0060.00614.39
5.5.370.0040.01114.36
5.5.360.0090.00314.73
5.5.350.0030.04117.35
5.5.340.0090.02416.25
5.5.330.0140.03917.40
5.5.320.0070.03217.45
5.5.310.0170.03617.46
5.5.300.0040.02716.17
5.5.290.0100.04516.28
5.5.280.0080.02917.70
5.5.270.0030.04517.62
5.5.260.0060.02517.77
5.5.250.0070.02217.59
5.5.240.0050.04717.45
5.5.230.0060.00614.48
5.5.220.0030.01014.46
5.5.210.0060.00614.48
5.5.200.0070.01014.22
5.5.190.0060.00614.31
5.5.180.0030.01014.36
5.5.170.0000.01514.13
5.5.160.0040.01214.58
5.5.150.0040.00714.30
5.5.140.0000.01314.41
5.5.130.0130.00314.41
5.5.120.0040.00814.36
5.5.110.0090.00914.35
5.5.100.0050.00514.37
5.5.90.0000.01014.54
5.5.80.0070.00714.33
5.5.70.0070.00714.61
5.5.60.0040.00714.58
5.5.50.0030.01214.23
5.5.40.0100.00314.53
5.5.30.0090.00314.60
5.5.20.0030.00914.25
5.5.10.0060.01013.96
5.5.00.0030.00914.63
5.4.450.0180.02615.24
5.4.440.0030.03515.06
5.4.430.0200.02015.29
5.4.420.0030.03415.41
5.4.410.0080.03315.19
5.4.400.0420.00314.77
5.4.390.0450.00014.96
5.4.380.0100.03414.86
5.4.370.0330.03514.92
5.4.360.0510.02114.93
5.4.350.0340.03714.91
5.4.340.0430.02914.98
5.4.330.0090.00011.14
5.4.320.0090.02111.83
5.4.310.0050.02411.82
5.4.300.0060.02111.77
5.4.290.0070.02111.70
5.4.280.0060.02511.79
5.4.270.0040.02511.64
5.4.260.0070.02514.96
5.4.250.0050.02814.98
5.4.240.0060.02914.89
5.4.230.0080.02714.90
5.4.220.0080.04314.90
5.4.210.0050.04515.12
5.4.200.0050.02615.02
5.4.190.0000.03215.00
5.4.180.0050.03015.02
5.4.170.0080.03015.03
5.4.160.0080.02714.96
5.4.150.0080.03314.96
5.4.140.0080.02813.60
5.4.130.0080.03813.77
5.4.120.0100.03013.59
5.4.110.0070.03013.70
5.4.100.0040.04413.59
5.4.90.0090.02813.67
5.4.80.0070.02713.69
5.4.70.0070.02813.71
5.4.60.0070.02413.75
5.4.50.0070.03513.74
5.4.40.0050.03413.83
5.4.30.0120.01813.79
5.4.20.0090.02913.55
5.4.10.0030.03413.54
5.4.00.0040.03013.43
5.3.290.0020.02511.72
5.3.280.0030.03012.29
5.3.270.0060.02812.54
5.3.260.0050.03112.63
5.3.250.0070.02712.53
5.3.240.0040.03112.68
5.3.230.0070.03012.50
5.3.220.0030.04112.58
5.3.210.0070.03212.62
5.3.200.0050.03412.48
5.3.190.0070.03812.57
5.3.180.0050.03112.63
5.3.170.0050.02912.62
5.3.160.0080.02512.68
5.3.150.0070.02812.38
5.3.140.0050.03012.50
5.3.130.0080.02512.47
5.3.120.0050.03812.53
5.3.110.0110.02512.49
5.3.100.0080.02512.19
5.3.90.0000.03312.11
5.3.80.0120.02512.16
5.3.70.0050.03111.97
5.3.60.0110.02312.34
5.3.50.0100.02312.28
5.3.40.0070.02712.23
5.3.30.0060.04312.17
5.3.20.0030.03011.96
5.3.10.0080.04312.02
5.3.00.0120.02911.94
5.2.170.0100.04011.19
5.2.160.0000.04711.08
5.2.150.0030.04310.93
5.2.140.0030.04311.05
5.2.130.0130.03011.14
5.2.120.0100.03311.02
5.2.110.0030.04311.28
5.2.100.0230.04011.12
5.2.90.0130.03011.05
5.2.80.0100.03711.12
5.2.70.0070.04011.13
5.2.60.0030.05011.17
5.2.50.0030.04310.88
5.2.40.0070.03711.05
5.2.30.0070.04310.94
5.2.20.0070.04011.00
5.2.10.0030.04310.87
5.2.00.0070.04010.84
5.1.60.0070.0309.97
5.1.50.0070.05010.00
5.1.40.0100.02710.23
5.1.30.0030.03710.44
5.1.20.0100.04710.37
5.1.10.0100.03010.11
5.1.00.0130.02710.28
5.0.50.0100.0278.66
5.0.40.0030.0308.32
5.0.30.0030.0538.10
5.0.20.0070.0338.19
5.0.10.0030.0308.28
5.0.00.0000.0438.14
4.4.90.0070.0176.52
4.4.80.0070.0206.52
4.4.70.0030.0206.52
4.4.60.0030.0236.52
4.4.50.0000.0236.52
4.4.40.0030.0406.52
4.4.30.0000.0236.52
4.4.20.0000.0236.52
4.4.10.0070.0206.52
4.4.00.0100.0406.52
4.3.110.0100.0136.52
4.3.100.0100.0136.52
4.3.90.0070.0176.52
4.3.80.0070.0276.52
4.3.70.0030.0306.52
4.3.60.0070.0176.52
4.3.50.0030.0206.52
4.3.40.0000.0336.52
4.3.30.0030.0206.52
4.3.20.0030.0206.52
4.3.10.0030.0206.52
4.3.00.0030.0206.45

preferences:
44.61 ms | 400 KiB | 5 Q