3v4l.org

run code in 300+ PHP versions simultaneously
<?php function &g(&$v) { return $v; } function f(&$v) { $v = 5; } $foo = null; $name = 'foo'; call_user_func_array('f', array(g($$name))); //$a = & g($$name); //$a = 3; //var_dump(array(g($$name))); var_dump($foo);

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)
8.3.70.0240.00318.30
8.3.60.0070.00718.27
8.3.50.0130.00321.27
8.3.40.0070.00718.77
8.3.30.0140.00018.97
8.3.20.0000.00820.20
8.3.10.0080.00021.95
8.3.00.0050.00322.39
8.2.180.0120.00418.41
8.2.170.0140.00022.96
8.2.160.0070.00719.34
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.01126.16
8.2.120.0080.00019.61
8.2.110.0060.00320.37
8.2.100.0040.00819.70
8.2.90.0000.00819.10
8.2.80.0000.00818.03
8.2.70.0030.00617.50
8.2.60.0000.00717.93
8.2.50.0000.00818.07
8.2.40.0030.00619.95
8.2.30.0040.00418.13
8.2.20.0000.00817.70
8.2.10.0040.00417.70
8.2.00.0040.00417.90
8.1.280.0150.00625.92
8.1.270.0050.00522.14
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0090.00023.82
8.1.230.0080.00418.98
8.1.220.0040.00417.88
8.1.210.0040.00418.77
8.1.200.0030.00617.36
8.1.190.0030.00517.40
8.1.180.0080.00018.68
8.1.170.0050.00318.50
8.1.160.0000.00722.14
8.1.150.0000.00718.50
8.1.140.0040.00417.32
8.1.130.0030.00317.81
8.1.120.0050.00317.36
8.1.110.0040.00417.41
8.1.100.0050.00317.34
8.1.90.0000.00717.34
8.1.80.0080.00017.34
8.1.70.0070.00017.32
8.1.60.0050.00517.47
8.1.50.0020.00517.50
8.1.40.0080.00017.40
8.1.30.0070.00017.66
8.1.20.0000.00817.63
8.1.10.0000.00717.54
8.1.00.0020.00517.48
8.0.300.0050.00318.77
8.0.290.0080.00017.16
8.0.280.0070.00018.37
8.0.270.0050.00317.10
8.0.260.0000.00716.90
8.0.250.0000.00716.98
8.0.240.0030.00317.01
8.0.230.0000.00616.89
8.0.220.0000.00716.98
8.0.210.0070.00017.00
8.0.200.0000.00716.86
8.0.190.0040.00417.02
8.0.180.0000.00716.98
8.0.170.0060.00316.80
8.0.160.0040.00416.98
8.0.150.0040.00416.89
8.0.140.0040.00316.95
8.0.130.0000.00613.36
8.0.120.0030.00516.99
8.0.110.0000.00716.93
8.0.100.0050.00216.85
8.0.90.0040.00416.84
8.0.80.0030.01516.93
8.0.70.0040.00416.81
8.0.60.0040.00416.73
8.0.50.0070.00016.93
8.0.30.0110.00817.20
8.0.20.0110.01117.40
8.0.10.0000.00817.18
8.0.00.0100.01016.74
7.4.330.0030.00315.00
7.4.320.0000.00616.58
7.4.300.0030.00316.63
7.4.290.0080.00016.59
7.4.280.0030.00316.64
7.4.270.0030.00316.58
7.4.260.0040.00416.45
7.4.250.0000.00716.54
7.4.240.0070.00016.60
7.4.230.0040.00416.46
7.4.220.0120.00616.54
7.4.210.0080.00916.58
7.4.200.0000.00716.47
7.4.190.0040.00416.73
7.4.160.0120.00316.49
7.4.150.0120.01217.40
7.4.140.0120.00617.86
7.4.130.0090.00816.44
7.4.120.0110.00616.58
7.4.110.0040.01616.63
7.4.100.0140.00316.52
7.4.90.0180.00016.39
7.4.80.0120.00619.39
7.4.70.0080.00816.68
7.4.60.0040.01216.65
7.4.50.0000.00816.33
7.4.40.0110.00422.77
7.4.30.0100.00616.43
7.4.00.0100.00514.90
7.3.330.0050.00313.18
7.3.320.0030.00213.22
7.3.310.0070.00016.46
7.3.300.0040.00416.30
7.3.290.0060.01416.39
7.3.280.0100.00616.35
7.3.270.0070.01117.40
7.3.260.0160.00616.61
7.3.250.0080.01016.28
7.3.240.0120.00616.60
7.3.230.0080.01016.39
7.3.210.0000.01716.52
7.3.200.0230.00019.39
7.3.190.0170.00316.36
7.3.180.0090.00616.47
7.3.170.0030.01216.62
7.3.160.0120.00416.40
7.3.120.0070.00614.84
7.3.110.0070.00714.74
7.3.100.0120.00414.79
7.3.90.0000.00914.83
7.3.80.0070.00714.79
7.3.70.0070.00715.00
7.3.60.0040.01114.66
7.3.50.0090.00314.88
7.3.40.0090.00314.75
7.3.30.0040.00714.82
7.3.20.0110.00416.76
7.3.10.0070.00716.58
7.3.00.0090.00016.64
7.2.330.0100.00716.30
7.2.320.0100.00916.73
7.2.310.0060.01216.74
7.2.300.0090.00616.66
7.2.290.0040.01216.30
7.2.250.0100.01014.57
7.2.240.0060.00914.95
7.2.230.0030.00915.12
7.2.220.0040.00714.62
7.2.210.0080.00514.97
7.2.200.0030.01015.11
7.2.190.0000.01315.03
7.2.180.0070.00715.08
7.2.170.0040.01115.07
7.2.60.0030.01016.99
7.2.00.0030.01319.43
7.1.330.0100.00315.70
7.1.320.0000.01515.80
7.1.310.0060.00915.82
7.1.300.0100.00315.71
7.1.290.0070.00715.81
7.1.280.0080.00315.67
7.1.270.0040.00715.88
7.1.260.0110.00415.86
7.1.200.0040.01115.67
7.1.100.0040.00818.32
7.1.70.0080.00317.09
7.1.60.0160.00919.82
7.1.50.0140.01017.11
7.1.00.0070.03022.44
7.0.200.0000.00716.78
7.0.140.0000.07722.19
7.0.60.0070.08319.80
7.0.50.0130.03317.97
7.0.40.0000.04720.30
7.0.30.0270.05020.34
7.0.20.0400.06320.26
7.0.10.0170.07720.10
7.0.00.0170.07320.16
5.6.280.0070.07021.13
5.6.210.0070.08320.73
5.6.200.0030.04018.22
5.6.190.0070.04720.47
5.6.180.0270.03320.51
5.6.170.0230.07320.50
5.6.160.0100.05720.46
5.6.150.0070.07718.14
5.6.140.0070.05718.16
5.6.130.0100.08318.18
5.6.120.0070.04721.15
5.6.110.0100.08020.90
5.6.100.0200.03321.00
5.6.90.0030.08720.89
5.6.80.0200.06720.38
5.6.70.0070.06320.47
5.5.350.0370.06020.41
5.5.340.0070.03718.04
5.5.330.0130.08020.47
5.5.320.0230.03720.20
5.5.310.0470.06720.36
5.5.300.0030.06318.09
5.5.290.0130.04717.97
5.5.280.0030.04320.62
5.5.270.0070.09020.86
5.5.260.0070.08320.96
5.5.250.0030.04320.79
5.5.240.0370.06320.13
5.4.450.0830.05719.45
5.4.440.0830.05319.59
5.4.430.0070.06019.18
5.4.420.0800.05319.57
5.4.410.0930.05019.04
5.4.400.1170.06018.54
5.4.390.1100.05318.62
5.4.380.0300.05318.75
5.4.370.0230.04318.67
5.4.360.0100.05718.79
5.4.350.0130.05318.79
5.4.340.0100.06018.72
5.4.320.0070.03512.51
5.4.310.0080.03612.50
5.4.300.0060.03712.50
5.4.290.0040.04112.50
5.4.280.0080.03212.39
5.4.270.0050.03612.40
5.4.260.0100.06718.82
5.4.250.0030.08319.00
5.4.240.0070.07318.68
5.4.230.0200.04018.96
5.4.220.0030.08719.00
5.4.210.0130.06018.75
5.4.200.0130.05718.75
5.4.190.0100.05010.61
5.4.180.0030.05718.77
5.4.170.0000.07718.96
5.4.160.0130.05318.73
5.4.150.0130.07318.98
5.4.140.0100.05016.62
5.4.130.0070.05316.60
5.4.120.0030.05316.65
5.4.110.0130.05716.54
5.4.100.0100.05316.47
5.4.90.0130.06716.47
5.4.80.0130.06716.61
5.4.70.0100.06016.45
5.4.60.0170.05716.54
5.4.50.0070.05016.55
5.4.40.0230.04016.52
5.4.30.0130.04716.30
5.4.20.0030.06016.39
5.4.10.0170.05016.39
5.4.00.0130.06715.84
5.3.290.0050.04112.80
5.3.280.0070.05714.56
5.3.270.0070.07714.59
5.3.260.0000.06314.68
5.3.250.0130.05714.76
5.3.240.0170.04714.59
5.3.230.0030.05714.63
5.3.220.0170.06014.79
5.3.210.0130.05014.56
5.3.200.0130.07014.64
5.3.190.0100.07314.65
5.3.180.0170.06014.78
5.3.170.0100.07014.39
5.3.160.0000.06014.69
5.3.150.0130.07314.70
5.3.140.0200.04314.63
5.3.130.0200.05714.52
5.3.120.0200.04714.51
5.3.110.0030.06714.74
5.3.100.0070.05314.10
5.3.90.0130.06314.10
5.3.80.0100.05714.03
5.3.70.0100.06314.09
5.3.60.0130.05014.00
5.3.50.0130.06314.17
5.3.40.0070.06714.04
5.3.30.0130.05013.98
5.3.20.0130.06313.68
5.3.10.0070.05013.74
5.3.00.0130.04313.81
5.2.170.0070.05011.15
5.2.160.0170.04311.23
5.2.150.0130.05011.21
5.2.140.0030.06711.32
5.2.130.0100.05011.19
5.2.120.0030.06011.07
5.2.110.0030.04011.17
5.2.100.0230.02711.28
5.2.90.0100.03711.19
5.2.80.0100.03711.27
5.2.70.0100.04310.99
5.2.60.0100.04011.06
5.2.50.0070.04310.85
5.2.40.0070.03711.07
5.2.30.0030.05711.13
5.2.20.0130.04011.14
5.2.10.0000.06010.94
5.2.00.0030.04310.80
5.1.60.0070.04310.20
5.1.50.0070.04010.10
5.1.40.0070.03710.02
5.1.30.0030.04710.30
5.1.20.0100.05010.53
5.1.10.0130.04010.05
5.1.00.0030.03710.32
5.0.50.0100.0208.63
5.0.40.0030.0338.43
5.0.30.0030.0608.22
5.0.20.0070.0338.21
5.0.10.0070.0278.23
5.0.00.0070.0538.36
4.4.90.0070.0207.30
4.4.80.0030.0207.30
4.4.70.0070.0207.30
4.4.60.0030.0207.30
4.4.50.0000.0237.30
4.4.40.0030.0477.30
4.4.30.0030.0237.30
4.4.20.0030.0307.30
4.4.10.0000.0237.30
4.4.00.0030.0307.30
4.3.110.0030.0207.30
4.3.100.0000.0237.30
4.3.90.0030.0277.30
4.3.80.0100.0377.30
4.3.70.0030.0237.30
4.3.60.0030.0307.30
4.3.50.0070.0207.30
4.3.40.0000.0377.30
4.3.30.0030.0277.30
4.3.20.0000.0237.30
4.3.10.0070.0277.30
4.3.00.0100.0237.94

preferences:
48.56 ms | 401 KiB | 5 Q