3v4l.org

run code in 300+ PHP versions simultaneously
<?php $sum = null; // global variable $sum2 = null; // global variable function outer() { global $sum; global $sum2; $hundred_more = 100; $sum = function ($a, $b) use ($hundred_more) { return $a + $b + (++$hundred_more); }; $sum2 = function ($a, $b) use ($hundred_more) { return $a + $b + (++$hundred_more); }; var_dump($hundred_more); } outer(); // define sum at the global scope and print 100 var_dump($sum(5, 10)); // 116 var_dump($sum(5, 10)); // 117 var_dump($sum2(5, 10)); // 116 var_dump($sum2(5, 10)); // 117 outer(); // redefine sum at the global scope and print 100 var_dump($sum(5, 10)); // 116 var_dump($sum(5, 10)); // 117 var_dump($sum2(5, 10)); // 116 var_dump($sum2(5, 10)); // 117

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)
8.3.60.0150.00018.30
8.3.50.0310.00421.13
8.3.40.0090.00618.61
8.3.30.0070.00719.21
8.3.20.0040.00420.16
8.3.10.0040.00423.30
8.3.00.0080.00019.25
8.2.180.0140.00316.63
8.2.170.0040.01122.96
8.2.160.0140.00020.39
8.2.150.0030.00524.18
8.2.140.0000.00824.66
8.2.130.0080.00026.16
8.2.120.0130.00622.11
8.2.110.0110.00021.06
8.2.100.0090.00317.76
8.2.90.0040.00419.28
8.2.80.0060.00317.97
8.2.70.0060.00617.22
8.2.60.0050.00317.93
8.2.50.0050.00318.10
8.2.40.0030.00519.76
8.2.30.0020.00517.95
8.2.20.0040.00417.69
8.2.10.0000.00718.13
8.2.00.0040.00417.63
8.1.280.0030.01725.92
8.1.270.0000.00823.73
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0060.00321.12
8.1.230.0040.00717.76
8.1.220.0030.00517.78
8.1.210.0000.00818.77
8.1.200.0090.00017.35
8.1.190.0040.00417.23
8.1.180.0040.00418.10
8.1.170.0080.00018.64
8.1.160.0000.00722.04
8.1.150.0070.00018.90
8.1.140.0040.00417.54
8.1.130.0050.00317.88
8.1.120.0040.00417.38
8.1.110.0050.00317.44
8.1.100.0040.00417.48
8.1.90.0050.00317.46
8.1.80.0000.00717.53
8.1.70.0050.00217.35
8.1.60.0030.00617.48
8.1.50.0080.00017.41
8.1.40.0050.00317.54
8.1.30.0030.00517.55
8.1.20.0070.00017.57
8.1.10.0040.00417.47
8.1.00.0000.00817.45
8.0.300.0080.00018.83
8.0.290.0040.00416.63
8.0.280.0000.00718.45
8.0.270.0000.00717.25
8.0.260.0030.00317.29
8.0.250.0030.00316.85
8.0.240.0020.00516.92
8.0.230.0030.00316.96
8.0.220.0030.00316.77
8.0.210.0050.00316.76
8.0.200.0000.00716.91
8.0.190.0000.00816.92
8.0.180.0080.00016.98
8.0.170.0030.00616.94
8.0.160.0000.00716.79
8.0.150.0050.00216.93
8.0.140.0070.00016.87
8.0.130.0000.00813.32
8.0.120.0000.00816.90
8.0.110.0040.00416.90
8.0.100.0020.00516.88
8.0.90.0000.00817.01
8.0.80.0070.00716.88
8.0.70.0000.00716.77
8.0.60.0030.00516.69
8.0.50.0040.00416.93
8.0.30.0110.01017.27
8.0.20.0110.00817.40
8.0.10.0040.00416.90
8.0.00.0120.00816.76
7.4.330.0020.00215.03
7.4.320.0000.00716.65
7.4.300.0060.00016.50
7.4.290.0000.00716.64
7.4.280.0040.00416.64
7.4.270.0000.00716.64
7.4.260.0030.00616.51
7.4.250.0000.00816.37
7.4.240.0050.00216.57
7.4.230.0030.00616.39
7.4.220.0150.00316.55
7.4.210.0070.01016.55
7.4.200.0050.00316.63
7.4.160.0170.00716.61
7.4.150.0090.00917.40
7.4.140.0090.01317.86
7.4.130.0130.00716.54
7.4.120.0060.01416.47
7.4.110.0150.00416.42
7.4.100.0100.00716.49
7.4.90.0080.00916.46
7.4.80.0110.00919.39
7.4.70.0080.00916.38
7.4.60.0130.00916.50
7.4.50.0040.00416.34
7.4.40.0060.01616.63
7.4.30.0100.01016.73
7.4.00.0030.01315.05
7.3.330.0030.00313.13
7.3.320.0030.00313.22
7.3.310.0030.00316.30
7.3.300.0040.00416.19
7.3.290.0090.00716.28
7.3.280.0050.01216.29
7.3.270.0060.01317.40
7.3.260.0060.01216.53
7.3.250.0130.00816.51
7.3.240.0140.00716.57
7.3.230.0080.01516.50
7.3.210.0080.00816.66
7.3.200.0150.00419.39
7.3.190.0060.01016.59
7.3.180.0060.00916.28
7.3.170.0060.01016.44
7.3.160.0170.00016.51
7.2.330.0100.01016.78
7.2.320.0000.01716.71
7.2.310.0100.00716.74
7.2.300.0100.00716.68
7.2.290.0090.01516.33
7.2.60.0120.00316.81
7.2.00.0140.00819.50
7.1.200.0030.01015.82
7.1.100.0040.00918.07
7.1.70.0060.00317.19
7.1.60.0100.01019.11
7.1.50.0090.01517.04
7.1.00.0000.08022.35
7.0.200.0070.00316.93
7.0.140.0070.07322.05
7.0.60.0300.07319.90
7.0.50.0070.05317.88
7.0.40.0030.05020.14
7.0.30.0330.07720.14
7.0.20.0270.06020.13
7.0.10.0100.08320.33
7.0.00.0100.04320.09
5.6.280.0030.07320.83
5.6.210.0130.07320.64
5.6.200.0100.08318.18
5.6.190.0070.08020.47
5.6.180.0230.07720.57
5.6.170.0170.04020.62
5.6.160.0070.08320.44
5.6.150.0000.04318.13
5.6.140.0070.08018.15
5.6.130.0030.06718.27
5.6.120.0170.06721.01
5.6.110.0130.06721.00
5.6.100.0070.08721.14
5.6.90.0030.08720.98
5.6.80.0070.08320.39
5.5.350.0230.06320.32
5.5.340.0030.03717.99
5.5.330.0100.08020.44
5.5.320.0270.05020.36
5.5.310.0300.08020.31
5.5.300.0130.07318.08
5.5.290.0030.09017.95
5.5.280.0000.06020.89
5.5.270.0170.06020.85
5.5.260.0030.05020.85
5.5.250.0200.07320.72
5.5.240.0270.07020.12
5.4.450.0500.06319.48
5.4.440.0400.03719.47
5.4.430.0370.04019.30
5.4.420.0400.04319.39
5.4.410.0370.05719.07
5.4.400.0330.07319.17
5.4.390.0370.05319.07
5.4.380.0400.07318.89
5.4.370.0370.07018.87
5.4.360.0430.04318.97
5.4.350.0470.05319.07
5.4.340.0430.06719.15
5.4.320.0330.07019.10
5.4.310.0330.05019.09
5.4.300.0370.06719.14
5.4.290.0530.05719.04
5.4.280.0370.06318.96
5.4.270.0330.03718.91
5.4.260.0300.04319.07
5.4.250.0470.05319.07
5.4.240.0430.05719.14
5.4.230.0500.05719.14
5.4.220.0470.06018.97
5.4.210.0500.06019.11
5.4.200.0400.06719.04
5.4.190.0400.06019.06
5.4.180.0470.04719.06
5.4.170.0200.04718.91
5.4.160.0300.05019.09
5.4.150.0330.04319.06
5.4.140.0470.05716.40
5.4.130.0400.03716.38
5.4.120.0370.07316.39
5.4.110.0430.06716.59
5.4.100.0370.05016.63
5.4.90.0570.02716.60
5.4.80.0330.06716.37
5.4.70.0400.06316.50
5.4.60.0400.03316.16
5.4.50.0470.05716.38
5.4.40.0270.04316.43
5.4.30.0270.03716.31
5.4.20.0430.06016.50
5.4.10.0400.06316.16
5.4.00.0430.05715.93
5.3.290.0370.07314.68
5.3.280.0400.04014.61
5.3.270.0530.05014.53
5.3.260.0330.05714.52
5.3.250.0300.07714.70
5.3.240.0330.07314.73
5.3.230.0330.07714.60
5.3.220.0400.07314.58
5.3.210.0400.07014.59
5.3.200.0400.05314.69
5.3.190.0270.04314.73
5.3.180.0400.04014.49
5.3.170.0470.06314.69
5.3.160.0400.05014.68
5.3.150.0500.06014.62
5.3.140.0400.06014.54
5.3.130.0370.05714.46
5.3.120.0400.06314.55
5.3.110.0400.06714.48
5.3.100.0400.06314.05
5.3.90.0430.05314.19
5.3.80.0400.06714.03
5.3.70.0470.06013.96
5.3.60.0330.05013.96
5.3.50.0330.06313.87
5.3.40.0330.04314.18
5.3.30.0400.04014.04
5.3.20.0330.05313.93
5.3.10.0470.06313.75
5.3.00.0430.06013.58
5.2.170.0300.06011.15
5.2.160.0270.04311.26
5.2.150.0330.05711.05
5.2.140.0370.03011.07
5.2.130.0270.03011.03
5.2.120.0300.04311.11
5.2.110.0270.04311.18
5.2.100.0300.05711.10
5.2.90.0330.04311.03
5.2.80.0270.04711.02
5.2.70.0330.03011.32
5.2.60.0200.03311.12
5.2.50.0370.05010.97
5.2.40.0230.04010.95
5.2.30.0270.05711.04
5.2.20.0200.04711.18
5.2.10.0330.04710.84
5.2.00.0330.04310.93
5.1.60.0270.0279.90
5.1.50.0270.05010.07
5.1.40.0300.0339.91
5.1.30.0330.04310.39
5.1.20.0200.05710.36
5.1.10.0300.0509.91
5.1.00.0230.0579.96
5.0.50.0170.0238.60
5.0.40.0130.0238.56
5.0.30.0100.0478.23
5.0.20.0170.0408.33
5.0.10.0170.0238.06
5.0.00.0130.0638.09
4.4.90.0170.0207.32
4.4.80.0130.0377.32
4.4.70.0100.0407.32
4.4.60.0130.0377.32
4.4.50.0130.0377.32
4.4.40.0100.0377.32
4.4.30.0200.0177.32
4.4.20.0200.0307.32
4.4.10.0130.0237.32
4.4.00.0100.0307.32
4.3.110.0130.0177.32
4.3.100.0130.0177.32
4.3.90.0100.0307.32
4.3.80.0100.0407.32
4.3.70.0130.0307.32
4.3.60.0130.0337.32
4.3.50.0170.0277.32
4.3.40.0170.0377.32
4.3.30.0070.0207.32
4.3.20.0070.0337.32
4.3.10.0070.0337.32
4.3.00.0070.0237.32

preferences:
39.73 ms | 400 KiB | 5 Q