3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL); function foo (&$x) { $x = 2; } foo($xizzy); echo $xizzy;

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)
8.3.60.0040.01116.75
8.3.50.0120.00321.93
8.3.40.0100.00718.67
8.3.30.0100.00718.79
8.3.20.0040.00420.21
8.3.10.0000.00821.82
8.3.00.0040.00417.80
8.2.180.0150.00316.75
8.2.170.0110.00422.96
8.2.160.0120.00320.38
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0090.00626.16
8.2.120.0000.00720.99
8.2.110.0100.00022.16
8.2.100.0040.00817.91
8.2.90.0090.00019.23
8.2.80.0060.00317.97
8.2.70.0040.00417.63
8.2.60.0060.00317.78
8.2.50.0040.00418.07
8.2.40.0040.00419.95
8.2.30.0070.00018.16
8.2.20.0040.00417.59
8.2.10.0000.00718.03
8.2.00.0040.00417.66
8.1.280.0100.00325.92
8.1.270.0080.00022.24
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0140.00323.91
8.1.230.0100.00019.02
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0040.00817.35
8.1.190.0060.00317.00
8.1.180.0000.00818.10
8.1.170.0060.00318.50
8.1.160.0030.00521.80
8.1.150.0000.00718.68
8.1.140.0050.00217.36
8.1.130.0030.00317.81
8.1.120.0030.00317.30
8.1.110.0030.00517.29
8.1.100.0000.00717.38
8.1.90.0000.00817.38
8.1.80.0000.00717.38
8.1.70.0040.00417.36
8.1.60.0040.00417.51
8.1.50.0030.00617.33
8.1.40.0060.00617.55
8.1.30.0040.00417.64
8.1.20.0000.00817.60
8.1.10.0000.00717.39
8.1.00.0000.00717.39
8.0.300.0000.00718.77
8.0.290.0000.00716.63
8.0.280.0000.00718.37
8.0.270.0030.00317.20
8.0.260.0000.00817.25
8.0.250.0030.00316.80
8.0.240.0050.00317.01
8.0.230.0000.00716.75
8.0.220.0080.00016.68
8.0.210.0040.00416.71
8.0.200.0050.00216.76
8.0.190.0030.00316.86
8.0.180.0030.00516.88
8.0.170.0080.00016.77
8.0.160.0070.00016.82
8.0.150.0070.00016.74
8.0.140.0000.00716.63
8.0.130.0030.00313.20
8.0.120.0030.00516.84
8.0.110.0070.00016.76
8.0.100.0070.00016.59
8.0.90.0030.00416.87
8.0.80.0000.02116.77
8.0.70.0070.00016.78
8.0.60.0000.00716.93
8.0.50.0040.00416.77
8.0.30.0130.00817.08
8.0.20.0110.01017.40
8.0.10.0000.00716.96
8.0.00.0120.00616.82
7.4.330.0000.00615.11
7.4.320.0030.00316.45
7.4.300.0030.00316.63
7.4.290.0000.00716.45
7.4.280.0080.00016.63
7.4.270.0000.00716.63
7.4.260.0000.00716.46
7.4.250.0070.00016.43
7.4.240.0030.00416.54
7.4.230.0000.00816.68
7.4.220.0110.00716.50
7.4.210.0030.01016.45
7.4.200.0070.00016.49
7.4.160.0070.01116.19
7.4.150.0090.00917.40
7.4.140.0110.00817.86
7.4.130.0090.01016.41
7.4.120.0130.00616.51
7.4.110.0000.01816.40
7.4.100.0100.01016.64
7.4.90.0030.01416.54
7.4.80.0070.01319.39
7.4.70.0080.00816.23
7.4.60.0060.01016.55
7.4.50.0050.00016.61
7.4.40.0060.01016.31
7.4.30.0090.00616.51
7.4.00.0110.00715.04
7.3.330.0050.00013.11
7.3.320.0020.00213.12
7.3.310.0040.00416.34
7.3.300.0000.00716.30
7.3.290.0100.00316.32
7.3.280.0050.01316.31
7.3.270.0070.01017.40
7.3.260.0170.00716.54
7.3.250.0110.00816.41
7.3.240.0070.01416.57
7.3.230.0080.00816.39
7.3.210.0170.00016.68
7.3.200.0030.01819.39
7.3.190.0120.00916.32
7.3.180.0030.01716.31
7.3.170.0140.00316.42
7.3.160.0090.00616.21
7.3.120.0100.00914.69
7.3.110.0140.00314.75
7.3.100.0000.01614.77
7.3.90.0040.01215.02
7.3.80.0040.00714.83
7.3.70.0070.00714.82
7.3.60.0000.01414.93
7.3.50.0040.00714.64
7.3.40.0060.00614.78
7.3.30.0000.01314.48
7.3.20.0110.00316.62
7.3.10.0000.00916.71
7.3.00.0000.01116.64
7.2.330.0130.00316.41
7.2.320.0030.01316.68
7.2.310.0070.01016.30
7.2.300.0030.01316.34
7.2.290.0160.00316.67
7.2.250.0040.01514.67
7.2.240.0070.01415.06
7.2.230.0060.01115.13
7.2.220.0070.01115.10
7.2.210.0040.01114.60
7.2.200.0040.01114.85
7.2.190.0080.00614.97
7.2.180.0060.00614.95
7.2.170.0040.00714.96
7.2.60.0030.00916.80
7.2.00.0060.01019.20
7.1.330.0100.00415.77
7.1.320.0040.00715.79
7.1.310.0000.01515.77
7.1.300.0030.00615.51
7.1.290.0000.01315.70
7.1.280.0110.00415.70
7.1.270.0050.00515.68
7.1.260.0000.01315.52
7.1.200.0070.00715.69
7.1.100.0400.00617.40
7.1.70.0040.01117.03
7.1.60.0140.00419.25
7.1.50.0070.00716.92
7.1.00.0000.08022.45
7.0.200.0040.00416.82
7.0.140.0000.07722.10
7.0.60.0030.07719.86
7.0.50.0070.08017.81
7.0.40.0100.08320.27
7.0.30.0270.04020.07
7.0.20.0200.04720.24
7.0.10.0130.08020.30
7.0.00.0070.04020.33
5.6.280.0000.07321.07
5.6.210.0200.07020.67
5.6.200.0030.05718.12
5.6.190.0070.08320.33
5.6.180.0030.09020.39
5.6.170.0330.07020.54
5.6.160.0070.05720.57
5.6.150.0100.05018.21
5.6.140.0070.04318.14
5.6.130.0070.06718.21
5.6.120.0130.07721.15
5.6.110.0130.07721.00
5.6.100.0200.05721.11
5.6.90.0070.05020.98
5.6.80.0030.04320.38
5.5.350.0330.07720.43
5.5.340.0030.04018.02
5.5.330.0000.09020.13
5.5.320.0200.07720.36
5.5.310.0270.07320.31
5.5.300.0030.08018.08
5.5.290.0030.07317.94
5.5.280.0070.04720.75
5.5.270.0030.04320.80
5.5.260.0070.08020.73
5.5.250.0000.08720.59
5.5.240.0030.03020.19
5.4.450.0670.05319.57
5.4.440.0770.05019.55
5.4.430.0870.06019.66
5.4.420.0030.06019.53
5.4.410.0770.05719.10
5.4.400.0400.05018.80
5.4.390.0470.06018.74
5.4.380.0100.05018.56
5.4.370.0100.03318.63
5.4.360.0100.04018.64
5.4.350.0040.05012.02
5.4.340.0130.03312.02
5.4.320.0080.04012.51
5.4.310.0100.04212.50
5.4.300.0080.04212.51
5.4.290.0090.04912.50
5.4.280.0070.04712.40
5.4.270.0080.04012.40
5.4.260.0040.04512.39
5.4.250.0040.04312.40
5.4.240.0100.05012.40
5.4.230.0080.05012.39
5.4.220.0070.05112.39
5.4.210.0080.03812.39
5.4.200.0080.04212.39
5.4.190.0040.04612.39
5.4.180.0110.04112.38
5.4.170.0110.04412.39
5.4.160.0080.04012.39
5.4.150.0080.04112.39
5.4.140.0070.04212.07
5.4.130.0090.03612.06
5.4.120.0070.04012.02
5.4.110.0060.03912.01
5.4.100.0090.04412.01
5.4.90.0240.07112.01
5.4.80.0060.04512.02
5.4.70.0070.03412.01
5.4.60.0070.03412.01
5.4.50.0050.04812.01
5.4.40.0070.04212.00
5.4.30.0110.04412.00
5.4.20.0070.05911.99
5.4.10.0160.06512.00
5.4.00.0060.04511.48
5.3.290.0050.04412.80
5.3.280.0100.03312.71
5.3.270.0110.06412.72
5.3.260.0040.05112.72
5.3.250.0060.04112.72
5.3.240.0070.03512.72
5.3.230.0070.04312.71
5.3.220.0110.04312.68
5.3.210.0080.03912.68
5.3.200.0050.04212.68
5.3.190.0100.04012.68
5.3.180.0070.03912.67
5.3.170.0070.03712.67
5.3.160.0060.03712.67
5.3.150.0070.03812.67
5.3.140.0090.04212.66
5.3.130.0040.04212.66
5.3.120.0060.05212.66
5.3.110.0090.03712.66
5.3.100.0100.04112.12
5.3.90.0100.04912.10
5.3.80.0090.04412.09
5.3.70.0070.05012.09
5.3.60.0060.03812.08
5.3.50.0090.04212.01
5.3.40.0020.04212.02
5.3.30.0090.03211.98
5.3.20.0080.03411.75
5.3.10.0020.04711.73
5.3.00.0080.04511.71
5.2.170.0030.0359.21
5.2.160.0060.0299.21
5.2.150.0040.0329.21
5.2.140.0060.0369.21
5.2.130.0040.0309.17
5.2.120.0040.0299.17
5.2.110.0090.0259.18
5.2.100.0060.0279.17
5.2.90.0070.0279.17
5.2.80.0030.0329.16
5.2.70.0030.0339.17
5.2.60.0080.0279.12
5.2.50.0050.0319.09
5.2.40.0090.0269.07
5.2.30.0040.0369.04
5.2.20.0050.0319.03
5.2.10.0080.0328.94
5.2.00.0060.0398.79
5.1.60.0060.0348.09
5.1.50.0020.0348.08
5.1.40.0050.0328.06
5.1.30.0070.0298.41
5.1.20.0100.0448.43
5.1.10.0040.0288.16
5.1.00.0050.0268.16
5.0.50.0050.0206.63
5.0.40.0040.0206.50
5.0.30.0040.0316.30
5.0.20.0050.0226.27
5.0.10.0090.0256.26
5.0.00.0040.0316.25
4.4.90.0030.0154.78
4.4.80.0050.0124.76
4.4.70.0030.0214.75
4.4.60.0070.0124.75
4.4.50.0020.0224.77
4.4.40.0040.0254.71
4.4.30.0030.0174.76
4.4.20.0020.0194.85
4.4.10.0040.0144.85
4.4.00.0050.0294.76
4.3.110.0040.0154.67
4.3.100.0030.0164.66
4.3.90.0060.0124.63
4.3.80.0030.0244.58
4.3.70.0040.0134.63
4.3.60.0020.0174.63
4.3.50.0030.0194.63
4.3.40.0020.0254.54
4.3.30.0020.0193.30
4.3.20.0030.0163.27
4.3.10.0030.0173.24
4.3.00.0170.0206.95

preferences:
38.34 ms | 401 KiB | 5 Q