3v4l.org

run code in 300+ PHP versions simultaneously
<?php //old code function v1($first, $last) { $result = trim($first); $lastName = trim($last); if ($lastName) { if (!empty($result)) { $result .= ','; } $result .= $lastName; } return $result; } //my function v2($first, $last) { return implode(",", [trim($first), trim($last)]); } //@Hunternnm function v3($first, $last) { if(strlen($first) > 0 && strlen($last) > 0) { return $first.",".$last; } if(strlen($first) > 0) { return $first; } else { return $last; } } //@NelinD function v4($first, $last) { return implode(',', array_filter([$first, $last], function ($string) { return trim($string); })); } function v($first, $last) { echo v1($first, $last); echo PHP_EOL; echo v2($first, $last); echo PHP_EOL; echo v3($first, $last); echo PHP_EOL; echo v4($first, $last); echo PHP_EOL; echo PHP_EOL; } v('first', 'last'); v('first', ''); v('first', ' ');

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)
8.3.60.0060.00916.38
8.3.50.0100.01021.99
8.3.40.0040.01118.98
8.3.30.0110.00418.57
8.3.20.0040.00420.38
8.3.10.0000.00723.53
8.3.00.0040.00419.38
8.2.180.0110.00418.01
8.2.170.0040.01122.96
8.2.160.0070.00722.18
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0100.01017.63
8.2.110.0000.01022.11
8.2.100.0120.00017.93
8.2.90.0040.00419.17
8.2.80.0000.00917.97
8.2.70.0030.00617.60
8.2.60.0130.00317.43
8.2.50.0000.00818.07
8.2.40.0040.00421.11
8.2.30.0000.00720.74
8.2.20.0040.00417.75
8.2.10.0000.00718.08
8.2.00.0060.00318.18
8.1.280.0190.00425.92
8.1.270.0080.00023.88
8.1.260.0080.00026.35
8.1.250.0050.00328.09
8.1.240.0100.00022.66
8.1.230.0040.00717.79
8.1.220.0050.00317.79
8.1.210.0040.00418.77
8.1.200.0040.00417.25
8.1.190.0030.00517.35
8.1.180.0040.00418.10
8.1.170.0030.00620.25
8.1.160.0070.00022.08
8.1.150.0000.00718.93
8.1.140.0050.00319.52
8.1.130.0000.00717.63
8.1.120.0040.00417.38
8.1.110.0030.00317.38
8.1.100.0000.00717.48
8.1.90.0040.00417.46
8.1.80.0000.00817.53
8.1.70.0000.00817.34
8.1.60.0000.00817.45
8.1.50.0060.00317.42
8.1.40.0030.00517.53
8.1.30.0040.00417.50
8.1.20.0000.00817.61
8.1.10.0040.00417.48
8.1.00.0050.00317.49
8.0.300.0000.00718.77
8.0.290.0080.00016.75
8.0.280.0000.00718.45
8.0.270.0000.00717.26
8.0.260.0030.00317.15
8.0.250.0050.00216.95
8.0.240.0070.00016.98
8.0.230.0030.00517.04
8.0.220.0040.00416.89
8.0.210.0050.00216.89
8.0.200.0030.00316.85
8.0.190.0030.00517.02
8.0.180.0020.00516.75
8.0.170.0040.00416.95
8.0.160.0070.00016.94
8.0.150.0040.00416.75
8.0.140.0040.00416.76
8.0.130.0030.00313.36
8.0.120.0000.01016.85
8.0.110.0040.00416.91
8.0.100.0040.00416.78
8.0.90.0060.00316.91
8.0.80.0120.00316.85
8.0.70.0080.00016.93
8.0.60.0040.00416.90
8.0.50.0040.00416.86
8.0.30.0090.01217.00
8.0.20.0050.01317.40
8.0.10.0040.00416.88
8.0.00.0070.01016.90
7.4.330.0000.00515.08
7.4.320.0070.00016.65
7.4.300.0070.00016.44
7.4.290.0000.00716.58
7.4.280.0030.00516.59
7.4.270.0050.00316.60
7.4.260.0070.00016.61
7.4.250.0080.00016.56
7.4.240.0030.00416.47
7.4.230.0070.00016.39
7.4.220.0090.01016.60
7.4.210.0000.01516.64
7.4.200.0080.00016.42
7.4.160.0070.00716.38
7.4.150.0030.01317.40
7.4.140.0110.01017.86
7.4.130.0120.00916.53
7.4.120.0080.00916.52
7.4.110.0000.02016.44
7.4.100.0130.01016.45
7.4.90.0070.01116.47
7.4.80.0120.00619.39
7.4.70.0150.00316.33
7.4.60.0090.00616.66
7.4.50.0030.00616.43
7.4.40.0040.01316.50
7.4.30.0040.01416.55
7.4.00.0030.01315.07
7.3.330.0000.00513.28
7.3.320.0030.00313.29
7.3.310.0000.00716.18
7.3.300.0050.00216.19
7.3.290.0070.00916.33
7.3.280.0090.00916.37
7.3.270.0100.00717.40
7.3.260.0200.00716.38
7.3.250.0080.01116.40
7.3.240.0090.01016.58
7.3.230.0090.01516.39
7.3.210.0080.00816.36
7.3.200.0080.00816.33
7.3.190.0060.01116.37
7.3.180.0160.00016.61
7.3.170.0180.00616.62
7.3.160.0100.00716.26
7.3.10.0100.00816.62
7.3.00.0010.01316.67
7.2.330.0000.01716.54
7.2.320.0090.00916.73
7.2.310.0130.00616.55
7.2.300.0090.00916.47
7.2.290.0120.00616.62
7.2.130.0040.00916.84
7.2.120.0080.00716.98
7.2.110.0030.01117.03
7.2.100.0070.00716.98
7.2.90.0040.00817.03
7.2.80.0100.00417.04
7.2.70.0060.00916.93
7.2.60.0040.00716.79
7.2.50.0050.01016.86
7.2.40.0080.00617.00
7.2.30.0040.01216.72
7.2.20.0030.01216.76
7.2.10.0050.00816.88
7.2.00.0020.01216.85
7.1.250.0050.00915.73
7.1.200.0090.00015.59
7.1.100.0060.00618.23
7.1.70.0000.00817.13
7.1.60.0060.01619.43
7.1.50.0040.01816.98
7.1.00.0100.07022.51
7.0.200.0500.00314.61
7.0.60.0130.08019.94
7.0.50.0130.07317.98
7.0.40.0000.09320.11
7.0.30.0100.08320.23
7.0.20.0330.07320.24
7.0.10.0030.09020.06
7.0.00.0070.04020.14
5.6.280.0000.04721.11
5.6.210.0030.08020.64
5.6.200.0000.08018.29
5.6.190.0100.06320.45
5.6.180.0370.04720.73
5.6.170.0270.08020.50
5.6.160.0100.08320.52
5.6.150.0030.08018.28
5.6.140.0100.06718.24
5.6.130.0100.07318.21
5.6.120.0100.06021.02
5.6.110.0030.09020.98
5.6.100.0000.04321.13
5.6.90.0100.07021.12
5.6.80.0100.08020.55
5.5.350.0330.07720.44
5.5.340.0100.07718.02
5.5.330.0070.09020.19
5.5.320.0270.04320.38
5.5.310.0200.04320.34
5.5.300.0100.06717.98
5.5.290.0070.08017.95
5.5.280.0130.03320.68
5.5.270.0070.05320.66
5.5.260.0030.04020.86
5.5.250.0130.03320.71
5.5.240.0070.07320.27
5.4.450.0830.05019.34
5.4.440.0200.07019.46
5.4.430.0200.06719.43
5.4.420.0230.07719.59
5.4.410.0230.06319.33
5.4.400.0200.05319.14
5.4.390.0200.06719.36
5.4.380.0230.07018.84
5.4.370.0230.06319.37
5.4.360.0270.07719.24
5.4.350.0300.04319.11
5.4.340.0530.06318.95
5.4.320.0130.06019.11
5.4.310.0170.05319.27
5.4.300.0170.05019.13
5.4.290.0130.06019.24
5.4.280.0070.06319.08
5.4.270.0130.05719.28
5.4.260.0100.05319.24
5.4.250.0470.05719.27
5.4.240.0070.06019.11
5.4.230.0130.06319.10
5.4.220.0230.04719.22
5.4.210.0230.05719.13
5.4.200.0130.05718.83
5.4.190.0270.06719.25
5.4.180.0330.06319.04
5.4.170.0130.06019.11
5.4.160.0470.05718.82
5.4.150.0300.04719.09
5.4.140.0300.05316.44
5.4.130.0330.03316.53
5.4.120.0030.06016.34
5.4.110.0400.06016.62
5.4.100.0200.05716.58
5.4.90.0170.05316.57
5.4.80.0200.05016.65
5.4.70.0070.05716.55
5.4.60.0130.05716.43
5.4.50.0070.06016.49
5.4.40.0130.06016.25
5.4.30.0170.06716.27
5.4.20.0300.06716.40
5.4.10.0200.04316.23
5.4.00.0170.05015.93

preferences:
46 ms | 401 KiB | 5 Q