3v4l.org

run code in 300+ PHP versions simultaneously
<?php //$oldLocale = setlocale(LC_ALL, 0); //setLocale(LC_ALL, 'en_US.UTF8'); $firstName='kéké'; $lastName='kéké'; //$firstName = iconv('UTF-8', 'ASCII//TRANSLIT//IGNORE', $firstName); //$lastName = iconv('UTF-8', 'ASCII//TRANSLIT//IGNORE', $lastName); //setLocale(LC_ALL, $oldLocale); $firstName = mb_strtr($firstName,'àáâãäçèéêëìíîïñòóôõöùúûüýÿÀÁÂÃÄÇÈÉÊËÌÍÎÏÑÒÓÔÕÖÙÚÛÜÝ', 'aaaaaceeeeiiiinooooouuuuyyAAAAACEEEEIIIINOOOOOUUUUY'); $lastName = mb_strtr($lastName,'àáâãäçèéêëìíîïñòóôõöùúûüýÿÀÁÂÃÄÇÈÉÊËÌÍÎÏÑÒÓÔÕÖÙÚÛÜÝ', 'aaaaaceeeeiiiinooooouuuuyyAAAAACEEEEIIIINOOOOOUUUUY'); $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)
8.3.60.0100.01018.31
8.3.50.0120.00522.11
8.3.40.0090.00618.77
8.3.30.0030.01019.04
8.3.20.0050.00320.30
8.3.10.0080.00022.12
8.3.00.0050.00322.34
8.2.180.0140.00716.75
8.2.170.0080.00622.96
8.2.160.0030.01019.21
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0000.00726.16
8.2.120.0090.00919.35
8.2.110.0110.00022.11
8.2.100.0090.00319.57
8.2.90.0040.00419.08
8.2.80.0000.00817.97
8.2.70.0060.00317.63
8.2.60.0060.00317.93
8.2.50.0050.00318.07
8.2.40.0030.00519.88
8.2.30.0000.00817.93
8.2.20.0080.00017.59
8.2.10.0040.00417.68
8.2.00.0080.00017.73
8.1.280.0100.01025.92
8.1.270.0040.00422.18
8.1.260.0070.00026.35
8.1.250.0030.00628.09
8.1.240.0100.00024.02
8.1.230.0110.00019.23
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0040.00417.00
8.1.190.0040.00417.29
8.1.180.0000.00818.57
8.1.170.0040.00418.52
8.1.160.0000.00722.15
8.1.150.0070.00018.65
8.1.140.0040.00417.28
8.1.130.0070.00317.92
8.1.120.0030.00317.32
8.1.110.0000.00717.39
8.1.100.0000.00817.29
8.1.90.0040.00317.45
8.1.80.0000.00817.34
8.1.70.0070.00017.36
8.1.60.0080.00017.47
8.1.50.0000.00817.56
8.1.40.0040.00417.47
8.1.30.0000.00817.70
8.1.20.0030.00617.62
8.1.10.0070.00017.48
8.1.00.0030.00517.41
8.0.300.0040.00418.77
8.0.290.0080.00017.05
8.0.280.0070.00018.39
8.0.270.0070.00017.27
8.0.260.0030.00316.74
8.0.250.0080.00016.93
8.0.240.0030.00316.81
8.0.230.0050.00316.83
8.0.220.0000.00616.80
8.0.210.0030.00316.83
8.0.200.0000.00816.95
8.0.190.0090.00016.96
8.0.180.0000.00816.95
8.0.170.0040.00416.84
8.0.160.0000.00816.94
8.0.150.0040.00416.85
8.0.140.0000.00716.92
8.0.130.0040.00413.34
8.0.120.0000.00716.87
8.0.110.0050.00216.96
8.0.100.0050.00216.73
8.0.90.0000.00716.92
8.0.80.0090.00616.97
8.0.70.0040.00416.73
8.0.60.0000.00716.94
8.0.50.0040.00416.85
8.0.30.0080.01016.92
8.0.20.0110.00717.40
8.0.10.0050.00216.90
8.0.00.0100.01016.78
7.4.330.0000.00615.00
7.4.320.0030.00316.47
7.4.300.0030.00316.43
7.4.290.0050.00316.56
7.4.280.0070.00016.58
7.4.270.0070.00016.51
7.4.260.0030.00316.61
7.4.250.0030.00316.61
7.4.240.0020.00516.56
7.4.230.0040.00416.60
7.4.220.0040.01216.48
7.4.210.0060.01016.56
7.4.200.0030.00316.50
7.4.190.0070.00016.56
7.4.160.0090.00616.50
7.4.150.0140.00317.40
7.4.140.0110.00617.86
7.4.130.0120.00716.48
7.4.120.0080.01216.54
7.4.110.0100.00716.66
7.4.100.0070.01016.48
7.4.90.0150.00316.60
7.4.80.0120.00619.39
7.4.70.0060.00916.63
7.4.60.0090.01216.69
7.4.50.0000.00816.48
7.4.40.0050.01322.77
7.4.30.0110.00616.52
7.4.00.0080.00514.75
7.3.330.0000.00513.20
7.3.320.0000.00613.00
7.3.310.0030.00316.21
7.3.300.0030.00316.22
7.3.290.0060.01316.38
7.3.280.0060.00916.33
7.3.270.0100.01017.40
7.3.260.0080.00816.25
7.3.250.0080.01116.28
7.3.240.0100.01016.58
7.3.230.0080.00816.39
7.3.210.0000.01616.38
7.3.200.0090.01219.39
7.3.190.0130.00616.44
7.3.180.0070.00716.28
7.3.170.0030.01316.27
7.3.160.0060.00916.15
7.3.120.0070.00514.72
7.3.110.0070.00414.59
7.3.100.0040.01114.59
7.3.90.0040.01014.75
7.3.80.0030.01014.61
7.3.70.0060.00914.63
7.3.60.0030.01214.80
7.3.50.0030.01014.61
7.3.40.0040.01114.73
7.3.30.0060.00614.60
7.3.20.0040.00816.58
7.3.10.0030.01016.46
7.3.00.0060.00916.40
7.2.330.0060.01216.40
7.2.320.0040.01816.65
7.2.310.0130.01016.32
7.2.300.0130.00916.45
7.2.290.0090.00616.53
7.2.250.0100.01014.72
7.2.240.0100.00715.00
7.2.230.0030.00714.84
7.2.220.0060.00314.83
7.2.210.0000.01514.84
7.2.200.0060.00914.87
7.2.190.0060.00314.52
7.2.180.0070.00714.99
7.2.170.0030.01214.61
7.2.130.0120.00616.74
7.2.120.0090.00616.79
7.2.110.0030.00716.91
7.2.100.0090.00316.52
7.2.90.0030.01016.79
7.2.80.0070.00416.60
7.2.70.0080.00416.79
7.2.60.0070.00516.71
7.2.50.0030.01316.84
7.2.40.0050.00516.73
7.2.30.0070.00716.88
7.2.20.0060.00816.73
7.2.10.0060.00916.80
7.2.00.0030.01017.90
7.1.330.0030.01015.43
7.1.320.0030.00615.27
7.1.310.0000.01415.75
7.1.300.0100.00315.29
7.1.290.0060.01215.41
7.1.280.0030.01515.33
7.1.270.0000.01215.75
7.1.260.0070.01015.43
7.1.250.0090.00315.47
7.1.200.0080.00415.60
7.1.100.0000.01117.66
7.1.70.0000.00917.00
7.1.60.0130.01019.82
7.1.50.0120.00616.62
7.1.00.0070.07322.54
7.0.200.0090.00616.60
7.0.140.0130.06322.13
7.0.60.0000.08719.90
7.0.50.0070.07717.78
7.0.40.0070.08719.90
7.0.30.0430.06320.18
7.0.20.0500.06320.09
7.0.10.0070.04020.16
7.0.00.0030.05720.04
5.6.280.0070.07020.77
5.6.210.0030.07020.61
5.6.200.0070.08018.22
5.6.190.0130.03320.67
5.6.180.0400.07720.63
5.6.170.0270.07720.71
5.6.160.0170.05720.44
5.6.150.0030.04018.19
5.6.140.0100.07318.11
5.6.130.0130.04718.18
5.6.120.0030.04020.98
5.6.110.0030.04321.01
5.6.100.0070.04021.13
5.6.90.0070.07020.96
5.6.80.0170.06320.53
5.5.350.3470.05020.33
5.5.340.0100.08017.89
5.5.330.0070.08720.15
5.5.320.0130.07720.34
5.5.310.0300.05020.17
5.5.300.0030.04317.98
5.5.290.0070.07017.90
5.5.280.0130.07320.80
5.5.270.0030.09020.95
5.5.260.0130.08320.73
5.5.250.0070.04720.78
5.5.240.0130.07020.14
5.4.450.0270.04319.12
5.4.440.0300.05719.48
5.4.430.0370.04719.40
5.4.420.0300.04319.13
5.4.410.0430.02719.11
5.4.400.0300.03719.24
5.4.390.0270.04018.91
5.4.380.0300.03719.25
5.4.370.0330.03719.06
5.4.360.0300.04319.05
5.4.350.0400.03319.09
5.4.340.0330.03718.93
5.4.320.0330.07019.05
5.4.310.0570.05318.79
5.4.300.0530.05718.79
5.4.290.0470.04718.93
5.4.280.0530.06718.80
5.4.270.0430.05019.21
5.4.260.0500.05018.79
5.4.250.0630.04019.08
5.4.240.0500.04318.81
5.4.230.0370.04318.92
5.4.220.0500.06719.07
5.4.210.0430.03718.92
5.4.200.0500.06718.95
5.4.190.0500.05319.23
5.4.180.0430.06719.07
5.4.170.0470.06718.78
5.4.160.0500.05719.22
5.4.150.0530.06018.91
5.4.140.0530.07016.27
5.4.130.0600.05016.36
5.4.120.0500.06316.42
5.4.110.0470.04016.22
5.4.100.0500.06316.23
5.4.90.0430.04016.34
5.4.80.0330.04016.18
5.4.70.0430.04316.44
5.4.60.0470.07316.47
5.4.50.0470.05316.47
5.4.40.0600.05316.38
5.4.30.0530.06016.17
5.4.20.0470.06016.41
5.4.10.0600.06016.48
5.4.00.0430.04715.76
5.3.290.0330.04714.64
5.3.280.0600.05714.56
5.3.270.0470.04314.63
5.3.260.0530.07014.46
5.3.250.0500.06714.59
5.3.240.0470.03714.51
5.3.230.0470.06714.44
5.3.220.0530.04014.39
5.3.210.0530.03714.51
5.3.200.0300.05014.48
5.3.190.0570.06714.42
5.3.180.0430.05714.51
5.3.170.0400.04014.54
5.3.160.0430.03314.65
5.3.150.0400.04014.65
5.3.140.0470.03714.50
5.3.130.0530.06014.38
5.3.120.0430.04014.40
5.3.110.0500.03314.49
5.3.100.0600.05713.98
5.3.90.0570.06013.87
5.3.80.0500.05714.00
5.3.70.0430.04013.81
5.3.60.0400.04313.80
5.3.50.0530.06013.92
5.3.40.0430.05713.79
5.3.30.0400.05313.76
5.3.20.0500.06013.64
5.3.10.0500.03313.63
5.3.00.0400.05013.50
5.2.170.0370.04010.99
5.2.160.0430.04311.24
5.2.150.0530.04011.16
5.2.140.0270.03711.09
5.2.130.0430.05311.15
5.2.120.0400.05310.96
5.2.110.0400.05710.93
5.2.100.0430.05310.99
5.2.90.0370.04011.14
5.2.80.0370.03710.95
5.2.70.0330.03310.98
5.2.60.0430.05010.95
5.2.50.0400.04311.03
5.2.40.0300.03710.93
5.2.30.0300.05710.88
5.2.20.0370.05010.81
5.2.10.0270.03711.01
5.2.00.0330.03010.57
5.1.60.0300.0509.97
5.1.50.0300.0539.86
5.1.40.0400.0409.88
5.1.30.0270.05010.41
5.1.20.0400.02710.44
5.1.10.0230.04310.23
5.1.00.0330.04010.00
5.0.50.0270.0308.70
5.0.40.0230.0338.52
5.0.30.0170.0538.36
5.0.20.0100.0338.12
5.0.10.0270.0338.17
5.0.00.0270.0438.14
4.4.90.0170.0377.42
4.4.80.0170.0337.42
4.4.70.0170.0307.42
4.4.60.0230.0137.42
4.4.50.0200.0207.42
4.4.40.0230.0207.42
4.4.30.0130.0277.42
4.4.20.0230.0277.42
4.4.10.0130.0177.42
4.4.00.0170.0537.42
4.3.110.0130.0307.42
4.3.100.0200.0237.42
4.3.90.0170.0277.42
4.3.80.0200.0307.42
4.3.70.0170.0307.42
4.3.60.0200.0307.42
4.3.50.0330.0277.42
4.3.40.0130.0307.42
4.3.30.0100.0337.42
4.3.20.0130.0337.42
4.3.10.0070.0307.42
4.3.00.0070.0377.42

preferences:
43.5 ms | 401 KiB | 5 Q