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($last)]); } function v3($str1, $str2) { return (strlen($str1) > 0 && strlen($str2) > 0) ? ($str1 + " " + $str2) : (strlen($str1) > 0) ? $str1 : $str2 ; } function v($first, $last) { echo v1($first, $last); echo PHP_EOL; echo v2($first, $last); } v('first', 'second');

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)
8.3.60.0070.01116.75
8.3.50.0120.00922.11
8.3.40.0080.00818.48
8.3.30.0070.00718.54
8.3.20.0050.00320.26
8.3.10.0040.00423.70
8.3.00.0090.00319.25
8.2.180.0110.01116.35
8.2.170.0110.00422.96
8.2.160.0030.01022.14
8.2.150.0000.00824.18
8.2.140.0020.00524.66
8.2.130.0020.00526.16
8.2.120.0000.00919.24
8.2.110.0100.00020.93
8.2.100.0040.00717.80
8.2.90.0040.00419.04
8.2.80.0000.00817.97
8.2.70.0090.00017.50
8.2.60.0030.00619.53
8.2.50.0070.00418.09
8.2.40.0040.00422.28
8.2.30.0050.00219.29
8.2.20.0000.00717.61
8.2.10.0040.00417.88
8.2.00.0040.00417.99
8.1.280.0110.01125.92
8.1.270.0030.00623.84
8.1.260.0060.00326.35
8.1.250.0040.00428.09
8.1.240.0100.00022.48
8.1.230.0070.00317.64
8.1.220.0000.00717.74
8.1.210.0040.00418.77
8.1.200.0040.00417.22
8.1.190.0040.00417.23
8.1.180.0050.00518.10
8.1.170.0030.00718.47
8.1.160.0030.00620.62
8.1.150.0030.00318.94
8.1.140.0000.00817.23
8.1.130.0030.00317.48
8.1.120.0000.00717.27
8.1.110.0030.00417.35
8.1.100.0000.00717.31
8.1.90.0040.00417.21
8.1.80.0040.00417.32
8.1.70.0030.00517.39
8.1.60.0070.00317.43
8.1.50.0080.00017.29
8.1.40.0040.00417.30
8.1.30.0110.00017.48
8.1.20.0000.00817.36
8.1.10.0050.00217.39
8.1.00.0030.00817.29
8.0.300.0040.00418.77
8.0.290.0000.00816.63
8.0.280.0000.00718.30
8.0.270.0080.00016.75
8.0.260.0000.00617.01
8.0.250.0050.00216.77
8.0.240.0070.00016.86
8.0.230.0000.00816.89
8.0.220.0030.00316.82
8.0.210.0040.00416.78
8.0.200.0000.00716.88
8.0.190.0040.00416.89
8.0.180.0040.00416.82
8.0.170.0050.00516.87
8.0.160.0030.00416.95
8.0.150.0000.00716.73
8.0.140.0040.00416.67
8.0.130.0050.00013.28
8.0.120.0050.00316.82
8.0.110.0050.00316.83
8.0.100.0040.00416.79
8.0.90.0040.00416.68
8.0.80.0110.00416.75
8.0.70.0040.00416.85
8.0.60.0000.00716.76
8.0.50.0000.00716.70
8.0.30.0110.00616.95
8.0.20.0130.00617.40
8.0.10.0000.00716.76
8.0.00.0070.00916.70
7.4.330.0000.00515.08
7.4.320.0000.00616.65
7.4.300.0040.00416.46
7.4.290.0050.00316.63
7.4.280.0030.00516.60
7.4.270.0070.00016.46
7.4.260.0030.00316.46
7.4.250.0030.00316.36
7.4.240.0020.00616.53
7.4.230.0070.00016.42
7.4.220.0070.01116.46
7.4.210.0080.00816.68
7.4.200.0070.00016.59
7.4.160.0060.00916.48
7.4.150.0070.01517.40
7.4.140.0090.01217.86
7.4.130.0150.00316.60
7.4.120.0090.01116.54
7.4.110.0070.01016.77
7.4.100.0130.00616.47
7.4.90.0120.00616.59
7.4.80.0090.00919.39
7.4.70.0120.00616.36
7.4.60.0130.00316.61
7.4.50.0040.00416.45
7.4.40.0030.01316.39
7.4.30.0130.00316.65
7.4.00.0060.01014.88
7.3.330.0000.00613.18
7.3.320.0000.00513.11
7.3.310.0000.00716.36
7.3.300.0040.00416.28
7.3.290.0080.00716.31
7.3.280.0090.00916.31
7.3.270.0090.00917.40
7.3.260.0090.00616.31
7.3.250.0080.01016.32
7.3.240.0110.00716.31
7.3.230.0060.01516.58
7.3.210.0070.01016.37
7.3.200.0130.01016.69
7.3.190.0090.00916.58
7.3.180.0070.01016.39
7.3.170.0110.00616.30
7.3.160.0050.01016.40
7.3.120.0090.00714.72
7.3.110.0080.00814.85
7.3.100.0040.01114.92
7.3.90.0040.00914.75
7.3.80.0090.00514.81
7.3.70.0040.01014.86
7.3.60.0080.00514.86
7.3.50.0100.00514.80
7.3.40.0050.00614.73
7.3.30.0040.00814.67
7.3.20.0040.00816.69
7.3.10.0030.01216.62
7.3.00.0070.00616.52
7.2.330.0130.00416.87
7.2.320.0070.01016.68
7.2.310.0030.01416.74
7.2.300.0040.01216.84
7.2.290.0110.00616.61
7.2.250.0090.01015.05
7.2.240.0060.01215.08
7.2.230.0100.00715.12
7.2.220.0090.00715.00
7.2.210.0070.01115.25
7.2.200.0060.00815.16
7.2.190.0050.00914.94
7.2.180.0070.00714.86
7.2.170.0050.00815.12
7.2.160.0040.01215.10
7.2.150.0030.01317.10
7.2.140.0140.00316.93
7.2.130.0030.01016.77
7.2.120.0120.00016.81
7.2.110.0070.00716.98
7.2.100.0040.01117.05
7.2.90.0060.00916.82
7.2.80.0080.00816.95
7.2.70.0100.00716.65
7.2.60.0020.01416.96
7.2.50.0060.00616.82
7.2.40.0100.00717.02
7.2.30.0060.00916.82
7.2.20.0060.01016.68
7.2.10.0070.00717.15
7.2.00.0070.01118.01
7.1.330.0010.01315.87
7.1.320.0070.00815.72
7.1.310.0050.00815.90
7.1.300.0050.01015.63
7.1.290.0030.00815.76
7.1.280.0030.01015.78
7.1.270.0050.00715.80
7.1.260.0040.00915.82
7.1.250.0030.01416.02
7.1.200.0070.00415.75
7.1.100.0000.01217.93
7.1.70.0000.00717.13
7.1.60.0160.01019.43
7.1.50.0000.01116.85
7.1.00.0030.07722.32
7.0.200.0430.00314.61
7.0.60.0130.07719.95
7.0.50.0000.04317.90
7.0.40.0000.06020.20
7.0.30.0000.05720.22
7.0.20.0330.08720.25
7.0.10.0030.04320.12
7.0.00.0100.08320.18
5.6.280.0000.06021.13
5.6.210.0000.08020.51
5.6.200.0130.05718.19
5.6.190.0070.08720.41
5.6.180.0470.07020.52
5.6.170.0170.05320.41
5.6.160.0030.08720.52
5.6.150.0070.08318.25
5.6.140.0100.05018.27
5.6.130.0100.08318.14
5.6.120.0130.07021.13
5.6.110.0170.07720.98
5.6.100.0070.08321.03
5.6.90.0100.08321.01
5.6.80.0130.07720.47
5.5.350.0330.07020.43
5.5.340.0000.05017.96
5.5.330.0170.07720.25
5.5.320.0370.06720.28
5.5.310.0100.04320.28
5.5.300.0130.06717.94
5.5.290.0070.03718.07
5.5.280.0100.08020.75
5.5.270.0100.04020.98
5.5.260.0100.06320.86
5.5.250.0130.07720.56
5.5.240.0000.07720.30
5.4.450.0170.08019.48
5.4.440.0230.07319.28
5.4.430.0100.06719.44
5.4.420.0200.06019.67
5.4.410.0370.07019.18
5.4.400.0230.04718.84
5.4.390.0300.06019.29
5.4.380.0270.06318.84
5.4.370.0330.05718.84
5.4.360.0130.07019.13
5.4.350.0200.05319.23
5.4.340.0200.05319.00
5.4.320.0400.09318.84
5.4.310.0130.06019.31
5.4.300.0200.07318.84
5.4.290.0370.07319.14
5.4.280.0230.06319.23
5.4.270.0070.07319.05
5.4.260.0270.06319.14
5.4.250.0230.05719.11
5.4.240.0330.04718.81
5.4.230.0130.05719.13
5.4.220.0330.04718.99
5.4.210.0230.05719.31
5.4.200.0230.05319.07
5.4.190.0300.04719.20
5.4.180.0200.08019.20
5.4.170.0170.05319.08
5.4.160.0500.05719.18
5.4.150.0330.07018.94
5.4.140.0130.05716.59
5.4.130.0270.04016.44
5.4.120.0100.06716.77
5.4.110.0630.06316.52
5.4.100.0630.05316.58
5.4.90.0470.05316.57
5.4.80.0200.04316.48
5.4.70.0170.05716.64
5.4.60.0270.04716.26
5.4.50.0100.05316.59
5.4.40.0230.06016.16
5.4.30.0170.06016.50
5.4.20.0170.06316.41
5.4.10.0170.06016.16
5.4.00.0230.06315.98

preferences:
55.34 ms | 401 KiB | 5 Q