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, $last); echo PHP_EOL; echo v3($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)
8.3.60.0090.00616.75
8.3.50.0000.01518.04
8.3.40.0070.00718.85
8.3.30.0040.01118.67
8.3.20.0040.00420.33
8.3.10.0040.00423.66
8.3.00.0060.00319.13
8.2.180.0130.01316.38
8.2.170.0040.01122.96
8.2.160.0130.00322.11
8.2.150.0000.00824.18
8.2.140.0070.00024.66
8.2.130.0040.00426.16
8.2.120.0090.00017.60
8.2.110.0100.00020.50
8.2.100.0030.00917.48
8.2.90.0000.00818.96
8.2.80.0000.00817.97
8.2.70.0030.00617.50
8.2.60.0060.01117.40
8.2.50.0030.00618.07
8.2.40.0040.00421.25
8.2.30.0000.00720.61
8.2.20.0040.00417.62
8.2.10.0040.00417.94
8.2.00.0070.00017.92
8.1.280.0110.00425.92
8.1.270.0040.00723.84
8.1.260.0070.00026.35
8.1.250.0060.00328.09
8.1.240.0030.00621.96
8.1.230.0070.00420.93
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0080.00017.10
8.1.190.0000.00816.98
8.1.180.0050.00218.10
8.1.170.0000.00818.87
8.1.160.0000.00721.96
8.1.150.0050.00320.46
8.1.140.0030.00619.45
8.1.130.0000.00717.43
8.1.120.0070.00017.33
8.1.110.0000.00817.25
8.1.100.0000.00717.39
8.1.90.0000.00717.25
8.1.80.0030.00517.28
8.1.70.0000.00717.23
8.1.60.0050.00317.42
8.1.50.0060.00317.41
8.1.40.0080.00017.38
8.1.30.0000.01017.55
8.1.20.0040.00417.54
8.1.10.0040.00417.27
8.1.00.0090.00317.29
8.0.300.0040.00418.77
8.0.290.0000.00816.63
8.0.280.0050.00218.20
8.0.270.0040.00417.13
8.0.260.0000.00817.07
8.0.250.0050.00316.80
8.0.240.0000.00616.82
8.0.230.0000.00716.88
8.0.220.0070.00016.83
8.0.210.0000.00816.86
8.0.200.0030.00316.89
8.0.190.0050.00316.90
8.0.180.0040.00416.74
8.0.170.0030.00616.83
8.0.160.0030.00316.80
8.0.150.0030.00316.66
8.0.140.0030.00516.68
8.0.130.0060.00013.23
8.0.120.0030.00516.82
8.0.110.0000.00816.73
8.0.100.0000.00716.89
8.0.90.0040.00416.79
8.0.80.0040.01116.79
8.0.70.0040.00416.87
8.0.60.0050.00216.77
8.0.50.0030.00516.71
8.0.30.0120.00716.88
8.0.20.0120.00717.40
8.0.10.0070.00016.97
8.0.00.0130.00616.54
7.4.330.0050.00015.08
7.4.320.0030.00316.56
7.4.300.0070.00016.62
7.4.290.0050.00316.61
7.4.280.0050.00316.63
7.4.270.0030.00316.58
7.4.260.0040.00416.36
7.4.250.0020.00516.48
7.4.240.0030.00316.52
7.4.230.0030.00316.36
7.4.220.0120.00616.36
7.4.210.0040.01116.63
7.4.200.0000.00716.48
7.4.160.0130.00316.47
7.4.150.0060.01217.40
7.4.140.0130.01317.86
7.4.130.0050.01516.56
7.4.120.0080.01016.46
7.4.110.0180.00016.65
7.4.100.0150.00416.43
7.4.90.0000.01816.75
7.4.80.0100.00719.39
7.4.70.0080.01116.50
7.4.60.0050.01116.39
7.4.50.0080.00016.28
7.4.40.0120.00616.55
7.4.30.0080.01416.66
7.4.00.0040.01215.04
7.3.330.0000.00513.42
7.3.320.0000.00513.43
7.3.310.0030.00316.59
7.3.300.0030.00316.36
7.3.290.0080.00916.46
7.3.280.0070.01116.46
7.3.270.0070.01017.40
7.3.260.0080.00816.78
7.3.250.0090.00716.43
7.3.240.0090.01416.52
7.3.230.0100.01016.43
7.3.210.0040.01216.50
7.3.200.0080.00816.58
7.3.190.0110.00916.46
7.3.180.0130.00316.52
7.3.170.0110.00516.50
7.3.160.0070.01116.47
7.3.120.0170.00015.10
7.3.110.0120.00014.94
7.3.100.0080.00814.66
7.3.90.0040.00415.05
7.3.80.0070.00715.06
7.3.70.0040.00814.92
7.3.60.0030.00714.87
7.3.50.0060.00614.80
7.3.40.0070.01114.77
7.3.30.0060.00314.86
7.3.20.0030.01316.75
7.3.10.0070.00316.70
7.3.00.0030.00616.41
7.2.330.0100.00716.63
7.2.320.0080.00816.70
7.2.310.0140.00316.84
7.2.300.0070.01016.58
7.2.290.0060.01216.84
7.2.240.0030.01315.03
7.2.230.0030.01015.36
7.2.220.0070.00715.01
7.2.210.0030.00615.00
7.2.200.0000.00914.95
7.2.190.0050.00514.90
7.2.180.0060.01015.02
7.2.170.0040.01515.24
7.2.160.0030.00714.96
7.2.150.0080.00817.07
7.2.140.0000.01816.78
7.2.130.0030.01016.66
7.2.120.0090.00417.00
7.2.110.0100.00716.80
7.2.100.0030.00617.00
7.2.90.0000.00916.99
7.2.80.0000.01217.08
7.2.70.0130.00017.03
7.2.60.0050.00716.92
7.2.50.0000.01217.01
7.2.40.0030.01417.00
7.2.30.0000.01116.93
7.2.20.0030.01416.62
7.2.10.0030.01016.93
7.2.00.0050.00918.18
7.1.330.0020.00915.57
7.1.320.0040.01115.62
7.1.310.0070.00415.88
7.1.300.0040.01115.77
7.1.290.0080.00615.82
7.1.280.0040.01115.71
7.1.270.0090.00615.80
7.1.260.0070.00416.00
7.1.250.0070.00715.82
7.1.200.0090.00015.92
7.1.100.0060.00918.27
7.1.70.0000.00717.09
7.1.60.0030.02019.43
7.1.50.0040.01516.70
7.1.00.0100.07022.42
7.0.200.0210.00314.63
7.0.60.0070.08719.77
7.0.50.0030.04017.86
7.0.40.0100.07019.98
7.0.30.0030.05320.06
7.0.20.0230.07320.15
7.0.10.0130.08020.06
7.0.00.0100.07720.25
5.6.280.0030.05321.13
5.6.210.0100.08320.51
5.6.200.0130.08318.26
5.6.190.0130.04720.64
5.6.180.0470.04720.52
5.6.170.0200.03720.44
5.6.160.0070.08320.54
5.6.150.0100.05318.21
5.6.140.0000.08718.29
5.6.130.0170.07018.12
5.6.120.0030.05021.00
5.6.110.0070.05721.09
5.6.100.0100.06021.14
5.6.90.0100.05021.11
5.6.80.0130.07720.54
5.5.350.0330.07020.44
5.5.340.0070.07718.06
5.5.330.0130.08020.21
5.5.320.0170.04720.24
5.5.310.0130.04320.42
5.5.300.0100.07717.97
5.5.290.0000.04318.08
5.5.280.0070.05320.69
5.5.270.0130.05720.80
5.5.260.0030.09020.85
5.5.250.0030.06020.50
5.5.240.0000.08020.20
5.4.450.0200.06019.45
5.4.440.0170.06019.53
5.4.430.0630.07319.14
5.4.420.0630.05719.52
5.4.410.0830.05019.32
5.4.400.0200.05319.29
5.4.390.0230.07319.01
5.4.380.0130.06718.84
5.4.370.0130.05718.82
5.4.360.0570.05719.22
5.4.350.0230.06018.84
5.4.340.0230.06019.23
5.4.320.0330.05718.82
5.4.310.0300.06719.23
5.4.300.0230.06018.95
5.4.290.0100.06719.20
5.4.280.0170.06319.23
5.4.270.0370.05719.23
5.4.260.0670.07319.29
5.4.250.0070.06319.34
5.4.240.0200.05319.20
5.4.230.0400.05719.11
5.4.220.0270.07019.13
5.4.210.0130.06018.95
5.4.200.0070.06019.20
5.4.190.0270.05018.81
5.4.180.0200.07018.94
5.4.170.0330.06019.23
5.4.160.0100.06319.30
5.4.150.0400.04019.14
5.4.140.0200.06316.63
5.4.130.0130.06016.33
5.4.120.0230.04316.35
5.4.110.0330.05716.24
5.4.100.0300.04716.57
5.4.90.0130.05316.70
5.4.80.0130.05316.63
5.4.70.0300.05316.45
5.4.60.0230.05016.45
5.4.50.0230.04716.57
5.4.40.0170.05316.61
5.4.30.0200.05716.57
5.4.20.0170.07016.57
5.4.10.0170.06716.50
5.4.00.0330.04715.96

preferences:
58.94 ms | 400 KiB | 5 Q