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', ' '); v('', last); v(' ', last); v(' ', last);

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)
8.3.70.0170.00316.62
8.3.60.0040.01116.88
8.3.50.0120.00822.05
8.3.40.0040.01218.81
8.3.30.0000.01418.97
8.3.20.0080.00020.31
8.3.10.0080.00023.66
8.3.00.0090.00019.38
8.2.180.0120.00618.38
8.2.170.0110.00422.96
8.2.160.0030.01022.08
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0060.00317.75
8.2.110.0000.01122.11
8.2.100.0040.00818.03
8.2.90.0000.00819.12
8.2.80.0000.00817.97
8.2.70.0030.00617.63
8.2.60.0040.00418.04
8.2.50.0000.00918.07
8.2.40.0030.00521.05
8.2.30.0000.00720.64
8.2.20.0040.00417.75
8.2.10.0040.00418.24
8.2.00.0000.00718.02
8.1.280.0110.00325.92
8.1.270.0040.00423.66
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0170.00022.52
8.1.230.0040.00717.66
8.1.220.0050.00317.74
8.1.210.0000.00918.77
8.1.200.0030.00617.36
8.1.190.0000.00917.35
8.1.180.0050.00318.10
8.1.170.0030.00520.24
8.1.160.0000.00722.10
8.1.150.0000.00818.83
8.1.140.0030.00519.63
8.1.130.0030.00517.77
8.1.120.0000.00717.48
8.1.110.0000.00717.47
8.1.100.0000.00717.41
8.1.90.0000.00717.45
8.1.80.0080.00017.38
8.1.70.0030.00317.47
8.1.60.0040.00417.68
8.1.50.0000.00817.52
8.1.40.0040.00417.52
8.1.30.0050.00317.59
8.1.20.0040.00417.54
8.1.10.0000.00817.61
8.1.00.0050.00317.38
8.0.300.0040.00418.77
8.0.290.0000.00716.75
8.0.280.0070.00018.45
8.0.270.0040.00417.14
8.0.260.0060.00017.22
8.0.250.0040.00416.93
8.0.240.0000.00717.07
8.0.230.0000.00917.05
8.0.220.0060.00317.00
8.0.210.0070.00016.95
8.0.200.0080.00016.91
8.0.190.0090.00017.05
8.0.180.0030.00516.98
8.0.170.0050.00316.89
8.0.160.0000.00716.88
8.0.150.0020.00516.85
8.0.140.0070.00016.88
8.0.130.0000.00613.38
8.0.120.0030.00616.83
8.0.110.0000.00717.02
8.0.100.0040.00416.77
8.0.90.0030.00617.02
8.0.80.0110.00416.95
8.0.70.0040.00416.77
8.0.60.0040.00417.02
8.0.50.0000.00716.83
8.0.30.0090.00916.94
8.0.20.0100.00917.40
8.0.10.0040.00416.94
8.0.00.0050.01216.78
7.4.330.0060.00015.09
7.4.320.0060.00016.50
7.4.300.0030.00316.51
7.4.290.0070.00016.60
7.4.280.0000.00716.42
7.4.270.0000.00716.46
7.4.260.0000.00716.50
7.4.250.0000.00816.53
7.4.240.0030.00516.54
7.4.230.0030.00316.60
7.4.220.0070.01716.57
7.4.210.0090.00616.65
7.4.200.0030.00316.64
7.4.160.0120.00416.55
7.4.150.0120.00617.40
7.4.140.0150.00617.86
7.4.130.0150.00416.42
7.4.120.0140.00416.61
7.4.110.0100.00916.29
7.4.100.0080.01116.53
7.4.90.0030.01416.40
7.4.80.0070.01119.39
7.4.70.0060.01216.50
7.4.60.0060.01216.59
7.4.50.0030.00616.59
7.4.40.0110.00616.62
7.4.30.0180.00716.45
7.4.10.0100.01014.68
7.4.00.0020.01415.09
7.3.330.0050.00013.38
7.3.320.0000.00513.41
7.3.310.0040.00416.48
7.3.300.0050.00216.55
7.3.290.0060.01016.41
7.3.280.0080.01116.43
7.3.270.0130.00517.40
7.3.260.0090.01816.56
7.3.250.0120.00816.57
7.3.240.0120.00716.45
7.3.230.0130.01016.48
7.3.210.0070.01116.67
7.3.200.0090.00616.52
7.3.190.0060.01016.46
7.3.180.0090.00616.52
7.3.170.0100.01416.49
7.3.160.0030.01216.38
7.3.130.0060.00914.79
7.3.120.0100.00714.68
7.3.110.0070.01115.02
7.3.100.0030.01015.05
7.3.90.0080.00714.89
7.3.80.0080.00314.71
7.3.70.0100.00614.90
7.3.60.0120.00314.87
7.3.50.0030.01014.95
7.3.40.0060.01014.80
7.3.30.0000.01014.79
7.3.20.0110.00316.71
7.3.10.0030.01316.41
7.3.00.0060.01216.61
7.2.330.0110.00716.46
7.2.320.0090.01516.48
7.2.310.0060.01716.52
7.2.300.0100.00716.86
7.2.290.0160.00316.73
7.2.260.0080.00815.05
7.2.250.0030.01415.11
7.2.240.0120.00315.01
7.2.230.0080.00815.14
7.2.220.0100.00715.23
7.2.210.0030.01015.10
7.2.200.0060.00615.13
7.2.190.0070.01115.20
7.2.180.0150.00014.94
7.2.170.0120.00615.11
7.2.160.0030.01414.72
7.2.150.0040.01216.86
7.2.140.0030.01416.91
7.2.130.0000.01416.96
7.2.120.0120.00417.09
7.2.110.0060.01016.80
7.2.100.0060.00917.04
7.2.90.0050.00517.14
7.2.80.0070.00717.21
7.2.70.0030.01017.16
7.2.60.0090.00616.97
7.2.50.0110.00416.82
7.2.40.0030.00617.07
7.2.30.0040.00716.77
7.2.20.0100.00617.03
7.2.10.0100.00316.83
7.2.00.0030.00918.32
7.1.330.0070.00715.53
7.1.320.0030.01315.94
7.1.310.0030.00915.63
7.1.300.0100.00315.80
7.1.290.0090.00315.84
7.1.280.0000.01415.86
7.1.270.0060.01215.61
7.1.260.0070.00715.88
7.1.250.0100.00715.65
7.1.240.0120.00415.82
7.1.230.0000.01115.96
7.1.220.0030.01015.96
7.1.210.0060.00315.58
7.1.200.0040.00815.75
7.1.190.0000.01315.85
7.1.180.0030.01015.64
7.1.170.0030.00715.82
7.1.160.0030.00615.82
7.1.150.0000.01515.92
7.1.140.0030.00715.78
7.1.130.0000.01415.73
7.1.120.0070.00315.92
7.1.110.0100.00315.80
7.1.100.0120.00716.80
7.1.90.0080.00416.03
7.1.80.0100.00315.85
7.1.70.0040.00716.55
7.1.60.0080.01017.62
7.1.50.0030.01316.44
7.1.40.0040.00715.73
7.1.30.0030.01315.77
7.1.20.0070.00715.77
7.1.10.0030.01015.79
7.1.00.0000.04419.16
7.0.330.0090.00715.20
7.0.320.0040.01215.55
7.0.310.0100.00315.61
7.0.300.0070.00715.56
7.0.290.0000.01115.63
7.0.280.0040.00715.38
7.0.270.0030.01015.33
7.0.260.0030.01015.12
7.0.250.0070.00715.30
7.0.240.0120.00315.39
7.0.230.0000.00915.59
7.0.220.0000.01215.42
7.0.210.0040.00715.55
7.0.200.0220.00815.09
7.0.190.0040.00815.28
7.0.180.0030.00615.53
7.0.170.0000.01415.58
7.0.160.0000.01315.56
7.0.150.0120.00415.23
7.0.140.0060.00615.59
7.0.130.0030.01015.52
7.0.120.0030.00615.43
7.0.110.0040.01115.32
7.0.100.0080.00315.59
7.0.90.0000.01315.49
7.0.80.0110.00315.58
7.0.70.0070.00715.32
7.0.60.0060.02417.72
7.0.50.0080.04316.82
7.0.40.0050.02616.90
7.0.30.0040.03916.84
7.0.20.0240.03816.75
7.0.10.0050.03916.87
7.0.00.0000.02716.72
5.6.400.0000.01614.34
5.6.390.0030.01314.66
5.6.380.0090.00014.43
5.6.370.0030.01114.32
5.6.360.0060.00614.38
5.6.350.0000.01514.54
5.6.340.0030.00614.48
5.6.330.0000.00914.30
5.6.320.0090.00014.46
5.6.310.0030.00914.58
5.6.300.0030.01014.74
5.6.290.0060.00614.34
5.6.280.0090.03017.76
5.6.270.0090.00614.16
5.6.260.0120.00314.77
5.6.250.0030.00514.27
5.6.240.0080.00414.48
5.6.230.0060.00814.58
5.6.220.0080.00814.31
5.6.210.0100.04117.55
5.6.200.0080.04016.40
5.6.190.0100.04517.49
5.6.180.0190.04517.47
5.6.170.0160.04317.62
5.6.160.0070.03317.62
5.6.150.0100.04016.27
5.6.140.0050.04616.29
5.6.130.0100.04016.31
5.6.120.0070.04517.72
5.6.110.0090.04517.66
5.6.100.0050.02417.60
5.6.90.0000.03517.61
5.6.80.0080.04217.44
5.6.70.0000.01214.14
5.6.60.0100.00314.26
5.6.50.0070.00714.32
5.6.40.0040.00814.34
5.6.30.0000.01614.21
5.6.20.0070.00414.36
5.6.10.0080.00314.36
5.6.00.0130.00014.07
5.5.380.0090.00614.57
5.5.370.0070.00714.68
5.5.360.0030.00614.13
5.5.350.0150.03817.47
5.5.340.0150.03516.17
5.5.330.0070.04317.32
5.5.320.0120.03517.30
5.5.310.0220.03817.36
5.5.300.0030.03316.25
5.5.290.0090.04016.36
5.5.280.0050.02717.72
5.5.270.0030.04717.58
5.5.260.0130.02017.72
5.5.250.0050.02417.53
5.5.240.0000.04617.33
5.5.230.0070.00714.46
5.5.220.0000.01314.51
5.5.210.0100.00314.33
5.5.200.0060.00314.30
5.5.190.0030.01014.09
5.5.180.0060.01014.42
5.5.170.0030.01014.43
5.5.160.0040.01114.54
5.5.150.0040.00714.13
5.5.140.0000.01414.20
5.5.130.0090.00314.46
5.5.120.0080.00414.32
5.5.110.0080.00514.52
5.5.100.0000.01514.50
5.5.90.0060.00614.16
5.5.80.0060.01214.20
5.5.70.0150.00414.36
5.5.60.0130.00614.36
5.5.50.0110.00014.53
5.5.40.0070.00714.57
5.5.30.0000.00914.09
5.5.20.0040.01114.46
5.5.10.0120.00314.20
5.5.00.0080.00814.31
5.4.450.0200.03315.81
5.4.440.0150.03515.76
5.4.430.0240.03515.74
5.4.420.0330.03615.94
5.4.410.0170.03015.84
5.4.400.0110.03415.76
5.4.390.0100.03715.74
5.4.380.0100.03415.74
5.4.370.0080.03815.74
5.4.360.0000.04315.64
5.4.350.0170.02815.80
5.4.340.0100.03515.80
5.4.330.0030.00812.34
5.4.320.0130.03115.74
5.4.310.0130.02815.64
5.4.300.0360.02915.58
5.4.290.0220.03315.64
5.4.280.0120.03415.64
5.4.270.0130.03615.79
5.4.260.0070.04115.80
5.4.250.0180.02915.64
5.4.240.0080.03515.74
5.4.230.0200.03015.72
5.4.220.0100.03215.83
5.4.210.0070.03615.58
5.4.200.0130.02815.64
5.4.190.0220.03215.78
5.4.180.0310.03615.73
5.4.170.0210.03015.63
5.4.160.0180.03315.73
5.4.150.0280.02815.72
5.4.140.0130.03814.38
5.4.130.0110.02814.45
5.4.120.0130.02814.33
5.4.110.0180.04114.46
5.4.100.0390.02714.49
5.4.90.0180.03114.51
5.4.80.0170.03414.39
5.4.70.0150.03314.25
5.4.60.0100.03214.29
5.4.50.0160.02514.43
5.4.40.0100.03214.46
5.4.30.0120.03514.40
5.4.20.0100.03014.46
5.4.10.0080.03014.46
5.4.00.0160.03414.07

preferences:
65.42 ms | 401 KiB | 5 Q