3v4l.org

run code in 300+ PHP versions simultaneously
<?php function &g(&$v) { $b = $v; return $b; } function f(&$v) { $v = 5; } $foo = null; $name = 'foo'; //call_user_func_array('f', array($a = &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)
8.3.60.0120.00316.63
8.3.50.0100.00717.33
8.3.40.0150.00318.64
8.3.30.0060.01018.72
8.3.20.0000.00818.54
8.3.10.0080.00020.40
8.3.00.0030.00519.13
8.2.180.0070.00716.50
8.2.170.0140.00322.96
8.2.160.0110.01120.97
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0060.00326.16
8.2.120.0040.00417.50
8.2.110.0100.00021.02
8.2.100.0040.00717.91
8.2.90.0110.00019.30
8.2.80.0000.00719.34
8.2.70.0040.00417.50
8.2.60.0030.00517.80
8.2.50.0040.00518.07
8.2.40.0000.00818.28
8.2.30.0050.00317.96
8.2.20.0030.00517.46
8.2.10.0030.00617.62
8.2.00.0040.00417.61
8.1.280.0140.00325.92
8.1.270.0090.00022.05
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0000.01022.42
8.1.230.0080.00320.97
8.1.220.0040.00417.74
8.1.210.0060.00318.90
8.1.200.0040.00817.23
8.1.190.0000.00717.53
8.1.180.0040.00418.10
8.1.170.0050.00318.73
8.1.160.0050.00218.93
8.1.150.0080.00018.55
8.1.140.0040.00417.46
8.1.130.0030.00317.82
8.1.120.0030.00617.46
8.1.110.0030.00417.50
8.1.100.0040.00417.35
8.1.90.0080.00017.40
8.1.80.0030.00317.35
8.1.70.0030.00317.34
8.1.60.0040.00417.61
8.1.50.0000.00717.44
8.1.40.0040.00417.47
8.1.30.0040.00417.70
8.1.20.0080.00017.57
8.1.10.0040.00417.50
8.1.00.0040.00417.45
8.0.300.0000.00819.86
8.0.290.0040.00416.75
8.0.280.0000.00718.44
8.0.270.0070.00017.17
8.0.260.0030.00318.50
8.0.250.0040.00416.95
8.0.240.0030.00516.93
8.0.230.0070.00016.84
8.0.220.0070.00016.95
8.0.210.0000.00716.86
8.0.200.0000.00716.93
8.0.190.0030.00616.94
8.0.180.0040.00416.85
8.0.170.0060.00316.94
8.0.160.0040.00416.86
8.0.150.0040.00416.72
8.0.140.0060.00316.80
8.0.130.0060.00013.40
8.0.120.0000.00716.70
8.0.110.0000.00816.74
8.0.100.0040.00417.00
8.0.90.0000.00716.86
8.0.80.0090.00616.94
8.0.70.0060.00316.77
8.0.60.0030.00516.84
8.0.50.0040.00416.92
8.0.30.0080.01017.01
8.0.20.0120.00917.00
8.0.10.0040.00416.91
8.0.00.0100.00816.68
7.4.330.0000.00813.10
7.4.320.0030.00316.62
7.4.300.0000.00616.57
7.4.290.0060.00316.45
7.4.280.0040.00416.50
7.4.270.0000.00716.53
7.4.260.0000.00513.29
7.4.250.0090.00016.63
7.4.240.0030.00316.52
7.4.230.0070.00016.41
7.4.220.0090.00916.65
7.4.210.0050.01116.62
7.4.200.0030.00316.38
7.4.190.0070.00016.55
7.4.160.0060.00916.55
7.4.150.0040.01316.39
7.4.140.0130.00516.48
7.4.130.0100.00916.50
7.4.120.0090.01016.52
7.4.110.0030.01316.49
7.4.100.0040.01716.54
7.4.90.0060.01216.46
7.4.80.0090.00919.39
7.4.70.0100.01016.61
7.4.60.0080.00816.41
7.4.50.0050.00916.30
7.4.40.0040.01116.40
7.4.30.0090.00916.68
7.4.00.0100.00614.96
7.3.330.0030.00313.24
7.3.320.0050.00013.36
7.3.310.0000.00716.18
7.3.300.0030.00316.16
7.3.290.0060.00916.25
7.3.280.0090.00916.29
7.3.270.0120.00616.71
7.3.260.0030.01416.31
7.3.250.0140.00716.47
7.3.240.0080.00816.21
7.3.230.0090.00716.63
7.3.210.0070.01016.17
7.3.200.0090.00616.16
7.3.190.0090.01216.54
7.3.180.0180.00016.24
7.3.170.0040.01216.32
7.3.160.0090.00616.19
7.3.120.0090.00814.69
7.3.110.0070.01114.86
7.3.100.0060.01315.09
7.3.90.0040.00414.51
7.3.80.0150.00414.86
7.3.70.0040.00814.79
7.3.60.0000.01614.68
7.3.50.0070.00714.64
7.3.40.0120.00314.86
7.3.30.0070.00714.80
7.3.20.0070.00716.44
7.3.10.0110.00816.77
7.3.00.0060.00616.74
7.2.330.0100.00916.34
7.2.320.0080.00816.78
7.2.310.0150.00616.72
7.2.300.0030.01316.72
7.2.290.0170.00016.62
7.2.250.0070.01014.79
7.2.240.0040.01515.18
7.2.230.0060.00914.96
7.2.220.0030.01414.84
7.2.210.0000.01514.77
7.2.200.0000.00914.87
7.2.190.0070.00714.93
7.2.180.0090.00014.99
7.2.170.0110.00714.73
7.2.160.0090.00314.98
7.2.150.0040.01116.79
7.2.140.0100.01016.79
7.2.130.0090.00616.59
7.2.120.0090.00016.83
7.2.110.0060.00616.83
7.2.100.0040.00416.71
7.2.90.0000.01216.79
7.2.80.0040.00816.91
7.2.70.0110.00716.87
7.2.60.0120.00316.61
7.2.50.0000.01016.95
7.2.40.0000.01416.75
7.2.30.0060.00617.04
7.2.20.0070.01116.86
7.2.10.0110.00717.08
7.2.00.0050.01018.16
7.1.330.0070.00315.94
7.1.320.0130.00315.68
7.1.310.0100.00615.82
7.1.300.0120.00315.70
7.1.290.0040.00715.37
7.1.280.0100.00615.80
7.1.270.0060.00615.91
7.1.260.0000.01915.61
7.1.250.0100.00315.82
7.1.240.0090.00615.86
7.1.230.0030.00915.89
7.1.220.0030.00715.88
7.1.210.0030.00615.92
7.1.200.0060.00915.83
7.1.190.0040.01515.94
7.1.180.0070.00715.77
7.1.170.0000.01015.58
7.1.160.0030.01015.74
7.1.150.0030.01415.80
7.1.140.0090.00915.89
7.1.130.0060.00315.53
7.1.120.0060.00615.76
7.1.110.0090.00615.69
7.1.100.0010.01116.82
7.1.90.0040.00715.70
7.1.80.0080.00415.91
7.1.70.0020.00916.43
7.1.60.0020.01117.61
7.1.50.0070.00916.24
7.1.40.0040.01215.75
7.1.30.0090.00615.88
7.1.20.0070.00715.58
7.1.10.0060.00615.52
7.1.00.0050.02219.02
7.0.330.0060.00615.53
7.0.320.0060.00915.45
7.0.310.0030.01015.21
7.0.300.0050.00315.44
7.0.290.0090.00315.23
7.0.280.0060.00315.13
7.0.270.0040.00815.24
7.0.260.0030.01015.43
7.0.250.0030.01115.55
7.0.240.0110.00415.41
7.0.230.0070.00315.54
7.0.220.0030.01015.49
7.0.210.0000.01015.34
7.0.200.0030.00516.07
7.0.190.0110.00715.31
7.0.180.0080.00315.27
7.0.170.0070.00315.61
7.0.160.0080.00315.49
7.0.150.0080.00515.38
7.0.140.0050.04118.75
7.0.130.0070.00315.35
7.0.120.0060.03618.58
7.0.110.0040.00715.32
7.0.100.0000.01115.53
7.0.90.0100.00315.57
7.0.80.0090.00615.37
7.0.70.0090.00315.43
7.0.60.0030.03417.53
7.0.50.0000.03216.55
7.0.40.0050.04416.63
7.0.30.0120.03816.86
7.0.20.0090.02716.78
7.0.10.0030.02616.89
7.0.00.0080.02316.89
5.6.400.0070.01314.14
5.6.390.0060.00614.04
5.6.380.0090.00613.95
5.6.370.0060.01014.13
5.6.360.0000.00914.60
5.6.350.0030.01314.46
5.6.340.0060.00914.20
5.6.330.0090.00314.13
5.6.320.0040.01114.52
5.6.310.0000.01114.34
5.6.300.0070.01014.03
5.6.290.0070.00714.21
5.6.280.0000.04517.59
5.6.270.0120.00314.36
5.6.260.0000.01213.89
5.6.250.0000.01214.27
5.6.240.0090.00614.48
5.6.230.0040.00814.17
5.6.220.0070.00714.15
5.6.210.0050.03517.40
5.6.200.0080.03816.13
5.6.190.0000.04017.41
5.6.180.0110.03317.29
5.6.170.0100.04217.42
5.6.160.0030.04717.27
5.6.150.0080.02517.39
5.6.140.0070.02917.15
5.6.130.0070.02617.30
5.6.120.0090.04117.23
5.6.110.0120.02517.10
5.6.100.0130.04217.26
5.6.90.0130.04017.02
5.6.80.0050.04116.76
5.6.70.0080.02216.81
5.6.60.0070.04116.85
5.6.50.0120.03016.98
5.6.40.0070.04616.84
5.6.30.0150.03716.99
5.6.20.0030.03216.82
5.6.10.0050.04516.92
5.6.00.0100.04016.83
5.5.380.0160.00014.13
5.5.370.0120.00014.07
5.5.360.0040.01214.28
5.5.350.0100.04517.24
5.5.340.0050.04816.10
5.5.330.0050.02517.27
5.5.320.0030.02817.10
5.5.310.0080.03817.33
5.5.300.0080.04617.15
5.5.290.0050.05017.14
5.5.280.0050.05017.10
5.5.270.0030.03217.08
5.5.260.0050.02617.22
5.5.250.0140.03417.13
5.5.240.0090.03616.96
5.5.230.0080.02316.77
5.5.220.0100.03016.84
5.5.210.0060.02316.78
5.5.200.0110.01816.74
5.5.190.0070.04516.68
5.5.180.0080.04616.77
5.5.170.0030.00714.25
5.5.160.0070.04216.87
5.5.150.0100.04116.94
5.5.140.0070.04016.61
5.5.130.0050.02316.71
5.5.120.0050.02516.72
5.5.110.0050.04116.75
5.5.100.0080.03416.78
5.5.90.0110.01816.68
5.5.80.0020.03016.50
5.5.70.0030.04716.57
5.5.60.0040.02116.82
5.5.50.0090.03416.77
5.5.40.0050.02516.92
5.5.30.0060.03816.76
5.5.20.0080.03216.81
5.5.10.0080.03516.80
5.5.00.0080.02816.82
5.4.450.0080.04315.27
5.4.440.0070.04115.29
5.4.430.0020.04415.32
5.4.420.0050.03715.12
5.4.410.0070.04515.05
5.4.400.0100.04015.02
5.4.390.0050.02715.07
5.4.380.0080.02514.96
5.4.370.0020.02715.10
5.4.360.0050.02515.14
5.4.350.0080.03515.08
5.4.340.0060.02015.17
5.4.330.0070.00311.05
5.4.320.0010.03615.03
5.4.310.0030.02214.95
5.4.300.0030.02215.15
5.4.290.0020.02315.10
5.4.280.0050.02515.14
5.4.270.0000.02514.96
5.4.260.0100.04015.10
5.4.250.0080.03815.12
5.4.240.0080.03714.96
5.4.230.0070.02515.07
5.4.220.0090.03015.13
5.4.210.0050.02715.18
5.4.200.0100.02214.94
5.4.190.0050.02015.11
5.4.180.0090.02214.98
5.4.170.0080.03214.95
5.4.160.0070.02515.02
5.4.150.0070.03515.09
5.4.140.0020.02713.82
5.4.130.0050.03413.80
5.4.120.0080.03813.71
5.4.110.0070.01913.76
5.4.100.0080.02013.80
5.4.90.0020.02913.76
5.4.80.0030.02013.80
5.4.70.0060.01813.74
5.4.60.0100.01513.75
5.4.50.0030.02113.75
5.4.40.0030.01813.66
5.4.30.0020.02213.73
5.4.20.0020.02213.65
5.4.10.0020.02413.71
5.4.00.0060.01813.43
5.3.290.0050.02812.87
5.3.280.0070.02012.85
5.3.270.0060.02512.85
5.3.260.0090.01712.91
5.3.250.0020.02312.83
5.3.240.0020.02312.83
5.3.230.0080.02212.90
5.3.220.0100.02312.77
5.3.210.0070.02012.78
5.3.200.0030.02512.82
5.3.190.0060.02012.83
5.3.180.0030.02812.81
5.3.170.0050.02012.80
5.3.160.0050.01812.77
5.3.150.0050.01812.81
5.3.140.0070.01712.82
5.3.130.0000.02312.80
5.3.120.0020.02412.83
5.3.110.0050.02012.76
5.3.100.0060.01812.55
5.3.90.0000.02512.55
5.3.80.0030.02012.56
5.3.70.0030.01812.48
5.3.60.0060.01612.55
5.3.50.0030.02012.49
5.3.40.0020.01912.48
5.3.30.0030.02112.45
5.3.20.0030.02012.41
5.3.10.0040.02012.43
5.3.00.0030.01812.42
5.2.170.0000.03011.17
5.2.160.0000.03011.11
5.2.150.0000.03011.32
5.2.140.0000.03011.10
5.2.130.0030.02711.07
5.2.120.0070.02311.07
5.2.110.0030.03011.15
5.2.100.0000.03311.09
5.2.90.0000.03011.08
5.2.80.0030.03011.13
5.2.70.0030.03011.05
5.2.60.0000.03011.04
5.2.50.0000.03011.02
5.2.40.0000.03011.04
5.2.30.0030.03010.86
5.2.20.0000.03310.97
5.2.10.0030.02710.89
5.2.00.0070.02310.72
5.1.60.0030.02010.00
5.1.50.0000.02710.14
5.1.40.0070.0209.93
5.1.30.0070.02010.39
5.1.20.0000.02710.50
5.1.10.0070.02010.07
5.1.00.0000.02710.12
5.0.50.0030.0308.55
5.0.40.0000.0338.57
5.0.30.0000.0708.25
5.0.20.0000.0338.23
5.0.10.0000.0338.13
5.0.00.0000.0638.15
4.4.90.0000.0177.48
4.4.80.0030.0137.48
4.4.70.0030.0137.48
4.4.60.0030.0137.48
4.4.50.0000.0177.48
4.4.40.0000.0237.48
4.4.30.0030.0137.48
4.4.20.0000.0177.48
4.4.10.0030.0137.48
4.4.00.0000.0277.48
4.3.110.0000.0307.48
4.3.100.0030.0377.48
4.3.90.0000.0237.48
4.3.80.0000.0577.48
4.3.70.0030.0377.48
4.3.60.0070.0307.48
4.3.50.0030.0337.48
4.3.40.0000.0407.48
4.3.30.0030.0207.48
4.3.20.0000.0377.48
4.3.10.0030.0307.48
4.3.00.0000.0377.48

preferences:
66.13 ms | 401 KiB | 5 Q