3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public function & bar() { return $this->var = $this->baz(); } public function baz() { return 'hello'; } } $foo = new Foo(); $var = $foo->bar(); var_dump($var); $var = & $foo->bar(); var_dump($var); var_dump($foo->baz());

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)
8.3.60.0130.00918.81
8.3.50.0050.01021.14
8.3.40.0040.01118.97
8.3.30.0110.00720.18
8.3.20.0030.00520.16
8.3.10.0060.00320.96
8.3.00.0080.00022.27
8.2.180.0130.00716.88
8.2.170.0060.00922.96
8.2.160.0070.00722.13
8.2.150.0070.00024.18
8.2.140.0060.00324.66
8.2.130.0070.00026.16
8.2.120.0040.00420.78
8.2.110.0090.00019.21
8.2.100.0080.00417.91
8.2.90.0050.00319.22
8.2.80.0050.00317.97
8.2.70.0000.00817.50
8.2.60.0000.00817.80
8.2.50.0040.00818.07
8.2.40.0050.00318.21
8.2.30.0080.00019.49
8.2.20.0030.00617.65
8.2.10.0060.00317.69
8.2.00.0040.00417.50
8.1.280.0100.01025.92
8.1.270.0040.00423.99
8.1.260.0030.00626.35
8.1.250.0080.00028.09
8.1.240.0000.00923.83
8.1.230.0050.00520.95
8.1.220.0040.00418.77
8.1.210.0040.00420.75
8.1.200.0000.00917.35
8.1.190.0040.00417.41
8.1.180.0040.00418.10
8.1.170.0100.00018.52
8.1.160.0080.00018.87
8.1.150.0040.00418.50
8.1.140.0000.00717.38
8.1.130.0030.00317.89
8.1.120.0000.00717.44
8.1.110.0040.00417.38
8.1.100.0030.00617.38
8.1.90.0070.00017.32
8.1.80.0000.00717.36
8.1.70.0030.00317.29
8.1.60.0000.00817.56
8.1.50.0040.00417.52
8.1.40.0030.00517.53
8.1.30.0040.00417.48
8.1.20.0030.00517.54
8.1.10.0060.00317.55
8.1.00.0060.00317.49
8.0.300.0070.00019.91
8.0.290.0000.00717.05
8.0.280.0000.00718.32
8.0.270.0020.00517.20
8.0.260.0000.00616.82
8.0.250.0030.00316.97
8.0.240.0000.00816.97
8.0.230.0000.00716.99
8.0.220.0060.00016.90
8.0.210.0000.00716.91
8.0.200.0070.00016.81
8.0.190.0080.00016.92
8.0.180.0030.00516.86
8.0.170.0000.00716.92
8.0.160.0040.00416.87
8.0.150.0000.00716.84
8.0.140.0070.00016.89
8.0.130.0060.00013.36
8.0.120.0080.00016.86
8.0.110.0040.00416.86
8.0.100.0000.00816.74
8.0.90.0050.00216.77
8.0.80.0120.00316.80
8.0.70.0070.00016.80
8.0.60.0040.00416.76
8.0.50.0050.00216.75
8.0.30.0080.01117.27
8.0.20.0170.00517.40
8.0.10.0040.00416.84
8.0.00.0170.00516.82
7.4.330.0030.00314.97
7.4.320.0000.00816.51
7.4.300.0030.00316.42
7.4.290.0000.00716.65
7.4.280.0000.00716.49
7.4.270.0030.00316.59
7.4.260.0030.00313.18
7.4.250.0060.00316.46
7.4.240.0040.00416.45
7.4.230.0050.00216.64
7.4.220.0150.00416.50
7.4.210.0070.01016.58
7.4.200.0030.00316.39
7.4.190.0000.00816.47
7.4.160.0000.01516.49
7.4.150.0060.01317.40
7.4.140.0110.00617.86
7.4.130.0140.00316.63
7.4.120.0130.00816.54
7.4.110.0140.00316.41
7.4.100.0100.01316.54
7.4.90.0060.01116.59
7.4.80.0100.00619.39
7.4.70.0090.00616.45
7.4.60.0040.01116.59
7.4.50.0040.00416.61
7.4.40.0030.01022.77
7.4.30.0200.00016.38
7.4.00.0040.01114.98
7.3.330.0000.00513.29
7.3.320.0000.00713.44
7.3.310.0030.00316.18
7.3.300.0000.00816.25
7.3.290.0120.00316.36
7.3.280.0060.01016.39
7.3.270.0100.00717.40
7.3.260.0080.00918.24
7.3.250.0100.01016.53
7.3.240.0180.00016.57
7.3.230.0040.01316.56
7.3.210.0070.01016.22
7.3.200.0100.01319.39
7.3.190.0120.00616.39
7.3.180.0060.01016.36
7.3.170.0090.00616.34
7.3.160.0120.01216.43
7.3.120.0110.00314.76
7.3.10.0100.00916.31
7.3.00.0100.00516.37
7.2.330.0120.00916.63
7.2.320.0090.00916.55
7.2.310.0090.00916.31
7.2.300.0110.00416.56
7.2.290.0130.00316.54
7.2.130.0100.00916.69
7.2.120.0080.00516.63
7.2.110.0090.01016.67
7.2.100.0140.00816.82
7.2.90.0130.01116.81
7.2.80.0120.01116.53
7.2.70.0110.00916.68
7.2.60.0050.01216.63
7.2.50.0130.00616.61
7.2.40.0110.01016.65
7.2.30.0070.01016.57
7.2.20.0120.00316.56
7.2.10.0150.00716.81
7.2.00.0120.01017.50
7.1.250.0070.00815.64
7.1.240.0080.00315.79
7.1.230.0030.00615.68
7.1.220.0060.00615.72
7.1.210.0060.00615.55
7.1.200.0040.01115.88
7.1.190.0070.00715.68
7.1.180.0060.00615.84
7.1.170.0000.01315.65
7.1.160.0000.01315.56
7.1.150.0040.01215.70
7.1.140.0070.00315.78
7.1.130.0040.00715.48
7.1.120.0060.01015.47
7.1.110.0000.01315.51
7.1.100.0080.00516.79
7.1.90.0040.01115.91
7.1.80.0000.01315.86
7.1.70.0030.00616.29
7.1.60.0050.01317.31
7.1.50.0070.01216.18
7.1.40.0030.01015.66
7.1.30.0070.01015.77
7.1.20.0040.01115.49
7.1.10.0070.00715.47
7.1.00.0050.02019.00
7.0.330.0140.00015.50
7.0.320.0100.00315.38
7.0.310.0060.00315.32
7.0.300.0090.00615.35
7.0.290.0040.00815.35
7.0.280.0050.00515.28
7.0.270.0060.00615.31
7.0.260.0060.00915.20
7.0.250.0030.01015.25
7.0.240.0140.00315.23
7.0.230.0060.00615.38
7.0.220.0090.00315.12
7.0.210.0030.01215.00
7.0.200.0040.00716.08
7.0.190.0030.01015.34
7.0.180.0050.00915.14
7.0.170.0070.00715.39
7.0.160.0100.00315.20
7.0.150.0050.00515.23
7.0.140.0050.03718.61
7.0.130.0060.00615.28
7.0.120.0000.01015.16
7.0.110.0070.00715.45
7.0.100.0030.03817.59
7.0.90.0130.03317.61
7.0.80.0170.02717.64
7.0.70.0030.04617.48
7.0.60.0100.04717.77
7.0.50.0070.02317.84
7.0.40.0130.01816.79
7.0.30.0050.04716.80
7.0.20.0090.04016.67
7.0.10.0020.02516.71
7.0.00.0080.04116.72
5.6.380.0060.00614.04
5.6.370.0070.00714.19
5.6.360.0030.00714.44
5.6.350.0080.00514.20
5.6.340.0040.01113.80
5.6.330.0000.01213.77
5.6.320.0040.01114.18
5.6.310.0090.00614.36
5.6.300.0000.01514.04
5.6.290.0000.00914.08
5.6.280.0030.04217.69
5.6.270.0110.00314.42
5.6.260.0030.00514.08
5.6.250.0020.03117.48
5.6.240.0120.05317.60
5.6.230.0090.02617.41
5.6.220.0030.02817.40
5.6.210.0020.04717.44
5.6.200.0080.02017.59
5.6.190.0070.03317.66
5.6.180.0070.02217.62
5.6.170.0070.04017.50
5.6.160.0110.03617.69
5.6.150.0100.03517.74
5.6.140.0020.02917.81
5.6.130.0100.03817.61
5.6.120.0100.03717.59
5.6.110.0090.02417.56
5.6.100.0020.03917.56
5.6.90.0050.03117.70
5.6.80.0050.04717.33
5.6.70.0070.04617.18
5.6.60.0080.04017.44
5.6.50.0050.04217.25
5.6.40.0000.03717.20
5.6.30.0080.04417.34
5.6.20.0020.02617.30
5.6.10.0070.03817.42
5.6.00.0100.03217.46
5.5.380.0030.02115.71
5.5.370.0070.02715.81
5.5.360.0050.03215.88
5.5.350.0030.04415.71
5.5.340.0050.02215.87
5.5.330.0030.02715.92
5.5.320.0090.03815.86
5.5.310.0050.02515.95
5.5.300.0030.02316.02
5.5.290.0050.04216.05
5.5.280.0020.03315.89
5.5.270.0030.02515.83
5.5.260.0050.04516.04
5.5.250.0080.03215.70
5.5.240.0050.03315.65
5.5.230.0070.04015.56
5.5.220.0030.02815.58
5.5.210.0090.03715.70
5.5.200.0020.03915.51
5.5.190.0070.04315.62
5.5.180.0040.03615.60
5.5.170.0120.00010.89
5.5.160.0030.02615.53
5.5.150.0090.02515.56
5.5.140.0060.02215.47
5.5.130.0110.03115.61
5.5.120.0070.04015.64
5.5.110.0060.04115.40
5.5.100.0030.02715.34
5.5.90.0050.04115.50
5.5.80.0030.02715.50
5.5.70.0050.04015.44
5.5.60.0020.04015.62
5.5.50.0030.02615.58
5.5.40.0070.04215.55
5.5.30.0050.02215.45
5.5.20.0060.02015.47
5.5.10.0030.03615.61
5.5.00.0020.02715.39
5.4.450.0100.03715.04
5.4.440.0030.03715.18
5.4.430.0060.02515.21
5.4.420.0050.02015.16
5.4.410.0090.01715.08
5.4.400.0060.04014.82
5.4.390.0070.03514.84
5.4.380.0100.01514.96
5.4.370.0020.03414.81
5.4.360.0070.03614.94
5.4.350.0050.04014.96
5.4.340.0050.02214.77
5.4.330.0040.00410.71
5.4.320.0080.04214.90
5.4.310.0050.02814.93
5.4.300.0030.04214.90
5.4.290.0040.02514.84
5.4.280.0100.02014.89
5.4.270.0030.03414.89
5.4.260.0040.02514.86
5.4.250.0070.04014.74
5.4.240.0030.02914.89
5.4.230.0070.02814.85
5.4.220.0030.03214.94
5.4.210.0010.03814.94
5.4.200.0120.02014.77
5.4.190.0090.02514.86
5.4.180.0120.02814.88
5.4.170.0040.03214.82
5.4.160.0080.01514.84
5.4.150.0060.02114.93
5.4.140.0050.02813.56
5.4.130.0030.02313.63
5.4.120.0030.03213.66
5.4.110.0070.03213.57
5.4.100.0070.02013.50
5.4.90.0030.02513.64
5.4.80.0070.03513.68
5.4.70.0030.02013.65
5.4.60.0060.01713.72
5.4.50.0080.03313.61
5.4.40.0020.04013.62
5.4.30.0070.03813.65
5.4.20.0040.02213.72
5.4.10.0060.03113.51
5.4.00.0080.03213.44
5.3.290.0050.04012.65
5.3.280.0100.02612.66
5.3.270.0050.03512.67
5.3.260.0030.03812.71
5.3.250.0020.03212.62
5.3.240.0020.02712.69
5.3.230.0030.02812.64
5.3.220.0010.02212.60
5.3.210.0050.02512.66
5.3.200.0070.02712.70
5.3.190.0060.03312.66
5.3.180.0000.03012.70
5.3.170.0060.03112.64
5.3.160.0020.02212.66
5.3.150.0020.03612.69
5.3.140.0070.04012.62
5.3.130.0070.04412.59
5.3.120.0050.03612.70
5.3.110.0020.04512.65
5.3.100.0040.03612.39
5.3.90.0050.03812.38
5.3.80.0030.04212.41
5.3.70.0070.03712.35
5.3.60.0010.02612.39
5.3.50.0080.03612.32
5.3.40.0050.02612.29
5.3.30.0100.03312.27
5.3.20.0020.02512.24
5.3.10.0060.03712.17
5.3.00.0040.02712.18
5.2.170.0010.02910.97
5.2.160.0030.02810.95
5.2.150.0020.02310.88
5.2.140.0030.02010.96
5.2.130.0070.02910.87
5.2.120.0050.01810.87
5.2.110.0050.03010.92
5.2.100.0060.01510.86
5.2.90.0050.03210.92
5.2.80.0060.03010.87
5.2.70.0060.03010.91
5.2.60.0050.03210.93
5.2.50.0010.02510.82
5.2.40.0050.03310.88
5.2.30.0030.03210.80
5.2.20.0030.03010.86
5.2.10.0010.02010.80
5.2.00.0050.02210.72
5.1.60.0040.02810.40
5.1.50.0050.01510.39
5.1.40.0030.01910.28
5.1.30.0030.03010.46
5.1.20.0050.02610.53
5.1.10.0020.02410.31
5.1.00.0020.02810.39
5.0.50.0030.0199.63
5.0.40.0050.0239.59
5.0.30.0070.0279.46
5.0.20.0010.0149.49
5.0.10.0040.0149.49
5.0.00.0100.0129.43
4.4.90.0050.0178.76
4.4.80.0040.0158.76
4.4.70.0000.0158.76
4.4.60.0030.0128.76
4.4.50.0000.0158.76
4.4.40.0020.0178.76
4.4.30.0020.0188.76
4.4.20.0050.0138.76
4.4.10.0000.0198.76
4.4.00.0000.0228.76
4.3.110.0060.0168.76
4.3.100.0020.0128.76
4.3.90.0060.0108.76
4.3.80.0020.0298.76
4.3.70.0000.0208.76
4.3.60.0020.0228.76
4.3.50.0050.0138.76
4.3.40.0020.0258.76
4.3.30.0030.0188.76
4.3.20.0050.0078.76
4.3.10.0030.0108.76
4.3.00.0020.0108.76

preferences:
48.19 ms | 401 KiB | 5 Q