3v4l.org

run code in 300+ PHP versions simultaneously
<?php function v1($first, $last) { $result = trim($first); $lastName = trim($last); if ($lastName) { if (!empty($result)) { $result .= ' '; } $result .= $lastName; } return $result; } function v2($first, $last) { return implode(" ", [trim($first), trim($last)]); } function v($first, $last) { echo v1($first, $last); echo PHP_EOL; echo v2($first, $last); } v();

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)
8.3.60.0070.00716.50
8.3.50.0070.00717.93
8.3.40.0040.01118.79
8.3.30.0120.00318.80
8.3.20.0070.00020.16
8.3.10.0080.00023.61
8.3.00.0070.00419.50
8.2.180.0120.00616.63
8.2.170.0070.00722.96
8.2.160.0170.00022.29
8.2.150.0080.00024.18
8.2.140.0070.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00417.38
8.2.110.0070.00321.04
8.2.100.0060.00617.84
8.2.90.0040.00419.16
8.2.80.0080.00017.97
8.2.70.0000.00917.50
8.2.60.0060.00317.91
8.2.50.0050.00318.07
8.2.40.0030.00719.29
8.2.30.0030.00720.55
8.2.20.0000.00817.66
8.2.10.0040.00417.99
8.2.00.0050.00217.89
8.1.280.0130.01325.92
8.1.270.0040.00423.84
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0050.00523.98
8.1.230.0040.00719.00
8.1.220.0040.00417.74
8.1.210.0090.00018.77
8.1.200.0060.00317.10
8.1.190.0040.00417.21
8.1.180.0080.00018.10
8.1.170.0080.00020.30
8.1.160.0040.00421.98
8.1.150.0070.00018.83
8.1.140.0050.00319.45
8.1.130.0030.00317.52
8.1.120.0050.00317.30
8.1.110.0040.00417.32
8.1.100.0040.00417.38
8.1.90.0000.00717.21
8.1.80.0040.00417.21
8.1.70.0070.00017.32
8.1.60.0000.00817.48
8.1.50.0000.00817.43
8.1.40.0050.00317.41
8.1.30.0030.00617.48
8.1.20.0000.00817.45
8.1.10.0060.00317.38
8.1.00.0040.00717.30
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0040.00418.37
8.0.270.0030.00317.09
8.0.260.0030.00317.22
8.0.250.0040.00416.97
8.0.240.0000.00616.84
8.0.230.0000.00616.98
8.0.220.0070.00016.90
8.0.210.0050.00316.89
8.0.200.0040.00416.92
8.0.190.0040.00416.82
8.0.180.0000.00816.89
8.0.170.0030.00716.89
8.0.160.0030.00316.95
8.0.150.0000.00716.72
8.0.140.0030.00516.82
8.0.130.0050.00013.39
8.0.120.0000.00916.82
8.0.110.0060.00316.80
8.0.100.0000.00816.71
8.0.90.0040.00416.75
8.0.80.0110.00316.88
8.0.70.0000.00716.94
8.0.60.0050.00216.90
8.0.50.0040.00416.70
8.0.30.0110.00816.95
8.0.20.0110.00717.40
8.0.10.0040.00416.82
8.0.00.0080.01216.68
7.4.330.0000.00615.08
7.4.320.0000.00816.38
7.4.300.0030.00316.57
7.4.290.0030.00316.35
7.4.280.0000.00816.52
7.4.270.0040.00416.41
7.4.260.0030.00616.41
7.4.250.0000.00716.41
7.4.240.0050.00216.47
7.4.230.0000.00716.63
7.4.220.0120.00616.54
7.4.210.0120.00416.48
7.4.200.0000.00716.53
7.4.160.0030.01316.42
7.4.150.0110.00717.40
7.4.140.0080.01917.86
7.4.130.0120.00716.47
7.4.120.0130.01116.41
7.4.110.0120.00416.63
7.4.100.0130.00416.34
7.4.90.0090.00916.43
7.4.80.0060.01219.39
7.4.70.0040.01316.49
7.4.60.0120.00316.34
7.4.50.0040.00416.28
7.4.40.0090.01216.54
7.4.30.0090.00916.60
7.4.00.0000.01314.65
7.3.330.0000.00513.29
7.3.320.0030.00313.32
7.3.310.0030.00316.21
7.3.300.0040.00416.16
7.3.290.0060.00816.29
7.3.280.0100.00816.26
7.3.270.0100.00717.40
7.3.260.0080.00816.57
7.3.250.0070.01316.43
7.3.240.0030.01316.45
7.3.230.0110.00616.39
7.3.210.0030.01316.35
7.3.200.0090.00916.37
7.3.190.0070.01516.34
7.3.180.0180.00416.22
7.3.170.0090.00916.39
7.3.160.0170.00316.60
7.3.10.0060.00616.57
7.3.00.0060.00616.66
7.2.330.0070.01116.29
7.2.320.0130.01016.61
7.2.310.0120.00616.58
7.2.300.0080.00816.34
7.2.290.0070.01016.43
7.2.130.0060.00616.80
7.2.120.0070.00716.63
7.2.110.0030.01016.82
7.2.100.0110.00316.73
7.2.90.0090.00316.73
7.2.80.0030.01016.75
7.2.70.0070.00716.55
7.2.60.0070.00416.62
7.2.50.0000.01316.63
7.2.40.0040.01116.86
7.2.30.0100.00316.57
7.2.20.0070.00716.88
7.2.10.0090.00316.77
7.2.00.0020.00817.96
7.1.250.0080.00415.51
7.1.200.0040.00815.30
7.1.100.0130.00318.10
7.1.70.0000.00916.82
7.1.60.0130.01019.43
7.1.50.0070.01016.82
7.1.00.0000.08022.46
7.0.200.0230.00414.74
7.0.60.0200.07019.92
7.0.50.0100.03317.90
7.0.40.0200.07320.10
7.0.30.0100.07020.30
7.0.20.0300.08320.19
7.0.10.0030.09020.06
7.0.00.0100.04020.25
5.6.280.0070.06021.05
5.6.210.0000.04720.65
5.6.200.0100.04018.31
5.6.190.0170.04020.63
5.6.180.0370.07020.57
5.6.170.0130.08020.46
5.6.160.0030.04020.56
5.6.150.0200.05018.15
5.6.140.0070.08018.16
5.6.130.0100.07318.18
5.6.120.0070.04721.11
5.6.110.0100.06021.11
5.6.100.0070.06720.99
5.6.90.0070.08021.04
5.6.80.0030.08720.29
5.5.350.0370.07020.34
5.5.340.0070.05718.03
5.5.330.0070.04320.35
5.5.320.0270.07020.35
5.5.310.0230.04320.35
5.5.300.0000.05018.08
5.5.290.0070.03717.94
5.5.280.0070.04720.77
5.5.270.0100.08320.68
5.5.260.0030.05320.76
5.5.250.0000.04320.80
5.5.240.0030.08020.19
5.4.450.0230.07319.52
5.4.440.0200.07719.27
5.4.430.0070.08719.26
5.4.420.0330.06019.48
5.4.410.0600.05319.07
5.4.400.0230.06719.16
5.4.390.0330.06319.02
5.4.380.0230.04719.07
5.4.370.0330.05719.16
5.4.360.0500.06019.03
5.4.350.0200.06719.04
5.4.340.0300.04719.14
5.4.320.0570.05019.07
5.4.310.0470.05319.14
5.4.300.0270.05018.77
5.4.290.0500.05019.02
5.4.280.0370.06718.77
5.4.270.0130.06319.02
5.4.260.0100.07319.04
5.4.250.0270.04319.04
5.4.240.0170.05719.13
5.4.230.0170.06019.03
5.4.220.0370.06318.86
5.4.210.0200.07019.02
5.4.200.0170.06018.88
5.4.190.0200.07719.08
5.4.180.0230.06319.06
5.4.170.0230.05719.02
5.4.160.0500.05019.02
5.4.150.0230.06019.05
5.4.140.0170.05316.34
5.4.130.0070.06716.53
5.4.120.0200.06316.63
5.4.110.0270.04316.54
5.4.100.0270.04716.45
5.4.90.0170.06016.58
5.4.80.0200.04316.61
5.4.70.0270.05316.56
5.4.60.0170.05716.16
5.4.50.0200.05716.50
5.4.40.0170.04716.45
5.4.30.0400.04316.38
5.4.20.0300.07016.51
5.4.10.0330.05716.57
5.4.00.0270.04316.14

preferences:
59.38 ms | 400 KiB | 5 Q