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)
8.3.60.0100.01018.05
8.3.50.0140.00721.14
8.3.40.0090.00618.60
8.3.30.0100.00318.92
8.3.20.0040.00420.21
8.3.10.0040.00422.10
8.3.00.0000.00722.45
8.2.180.0070.00716.63
8.2.170.0030.01022.96
8.2.160.0070.00719.20
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0040.00419.23
8.2.110.0040.00722.14
8.2.100.0030.01019.47
8.2.90.0080.00019.23
8.2.80.0050.00317.97
8.2.70.0030.00617.63
8.2.60.0050.00317.93
8.2.50.0060.00318.07
8.2.40.0030.00619.82
8.2.30.0070.00017.96
8.2.20.0070.00017.61
8.2.10.0040.00417.81
8.2.00.0070.00017.72
8.1.280.0110.01125.92
8.1.270.0040.00421.94
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0080.00023.84
8.1.230.0070.00419.16
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0050.00517.35
8.1.190.0030.00617.54
8.1.180.0030.00518.75
8.1.170.0080.00018.59
8.1.160.0000.00722.13
8.1.150.0000.00718.51
8.1.140.0000.00817.54
8.1.130.0050.00517.82
8.1.120.0050.00317.39
8.1.110.0040.00417.46
8.1.100.0000.00717.45
8.1.90.0030.00317.35
8.1.80.0030.00317.34
8.1.70.0070.00017.43
8.1.60.0000.00917.49
8.1.50.0000.00817.41
8.1.40.0080.00017.54
8.1.30.0040.00417.46
8.1.20.0000.00817.71
8.1.10.0050.00317.46
8.1.00.0050.00317.45
8.0.300.0050.00218.77
8.0.290.0040.00417.15
8.0.280.0060.00318.44
8.0.270.0030.00317.15
8.0.260.0040.00416.72
8.0.250.0070.00016.84
8.0.240.0000.00716.88
8.0.230.0030.00316.98
8.0.220.0040.00416.90
8.0.210.0000.00716.81
8.0.200.0030.00316.91
8.0.190.0040.00416.93
8.0.180.0030.00316.89
8.0.170.0080.00016.89
8.0.160.0000.00916.78
8.0.150.0030.00516.73
8.0.140.0030.00616.74
8.0.130.0030.00313.25
8.0.120.0060.00316.75
8.0.110.0050.00216.80
8.0.100.0000.00716.85
8.0.90.0050.00216.74
8.0.80.0120.00616.77
8.0.70.0040.00416.86
8.0.60.0000.00816.91
8.0.50.0040.00416.88
8.0.30.0160.00516.96
8.0.20.0080.01017.40
8.0.10.0040.00416.92
8.0.00.0170.00316.67
7.4.330.0030.00315.00
7.4.320.0060.00016.60
7.4.300.0000.00716.59
7.4.290.0030.00316.63
7.4.280.0040.00416.61
7.4.270.0000.00716.64
7.4.260.0070.00016.53
7.4.250.0070.00016.49
7.4.240.0050.00216.45
7.4.230.0030.00316.59
7.4.220.0030.02416.50
7.4.210.0060.00816.47
7.4.200.0070.00016.49
7.4.190.0070.00016.65
7.4.160.0060.01616.63
7.4.150.0140.00817.40
7.4.140.0130.00717.86
7.4.130.0100.00716.56
7.4.120.0080.00816.53
7.4.110.0070.01416.33
7.4.100.0100.01016.50
7.4.90.0100.00716.53
7.4.80.0030.01419.39
7.4.70.0160.00416.54
7.4.60.0080.00816.54
7.4.50.0030.00616.55
7.4.40.0090.00622.77
7.4.30.0120.00316.68
7.4.00.0020.01514.89
7.3.330.0000.00713.27
7.3.320.0000.00613.16
7.3.310.0040.00416.39
7.3.300.0070.00016.29
7.3.290.0100.00416.22
7.3.280.0050.01116.27
7.3.270.0110.00817.40
7.3.260.0090.01316.58
7.3.250.0130.00416.33
7.3.240.0130.00316.63
7.3.230.0120.00916.49
7.3.210.0150.00416.41
7.3.200.0100.00519.39
7.3.190.0130.01016.65
7.3.180.0120.00316.66
7.3.170.0060.01616.30
7.3.160.0080.00816.34
7.3.120.0030.01214.68
7.3.110.0070.01314.91
7.3.100.0030.01614.59
7.3.90.0000.01414.71
7.3.80.0090.00014.69
7.3.70.0070.00714.75
7.3.60.0040.00714.86
7.3.50.0090.00314.67
7.3.40.0050.00314.78
7.3.30.0100.00714.93
7.3.20.0030.01316.73
7.3.10.0070.01116.61
7.3.00.0000.01316.46
7.2.330.0060.01216.38
7.2.320.0070.01416.34
7.2.310.0120.00916.52
7.2.300.0030.01316.61
7.2.290.0070.01016.45
7.2.250.0130.00615.00
7.2.240.0060.01215.00
7.2.230.0070.00715.08
7.2.220.0040.00814.65
7.2.210.0000.01014.98
7.2.200.0100.00714.67
7.2.190.0070.00715.03
7.2.180.0030.00714.62
7.2.170.0060.00315.05
7.2.160.0100.00314.69
7.2.150.0040.01116.63
7.2.140.0050.00516.97
7.2.130.0030.01016.84
7.2.120.0000.01416.90
7.2.110.0070.00716.97
7.2.100.0100.00316.76
7.2.90.0030.00917.04
7.2.80.0070.01116.95
7.2.70.0000.01516.97
7.2.60.0090.00616.87
7.2.50.0040.01416.93
7.2.40.0030.00616.54
7.2.30.0070.00716.75
7.2.20.0030.00916.64
7.2.10.0090.00016.67
7.2.00.0060.00618.15
7.1.330.0030.01515.79
7.1.320.0030.01015.64
7.1.310.0000.01216.07
7.1.300.0030.01015.58
7.1.290.0000.00815.80
7.1.280.0040.00815.55
7.1.270.0090.00915.83
7.1.260.0040.00415.72
7.1.250.0040.01115.63
7.1.240.0040.00815.88
7.1.230.0040.00715.84
7.1.220.0040.01115.58
7.1.210.0040.00415.88
7.1.200.0040.00915.69
7.1.190.0060.00615.75
7.1.180.0120.00615.53
7.1.170.0030.01315.79
7.1.160.0040.00715.72
7.1.150.0030.01015.67
7.1.140.0030.00815.82
7.1.130.0040.00815.90
7.1.120.0030.00515.88
7.1.110.0090.00315.57
7.1.100.0030.00917.00
7.1.90.0120.00315.89
7.1.80.0000.01015.92
7.1.70.0040.00916.52
7.1.60.0060.01317.82
7.1.50.0080.01116.21
7.1.40.0100.00315.93
7.1.30.0040.01115.88
7.1.20.0070.00315.77
7.1.10.0030.01015.81
7.1.00.0030.02219.14
7.0.330.0100.00315.06
7.0.320.0000.01215.24
7.0.310.0040.00415.61
7.0.300.0030.00715.27
7.0.290.0040.00815.39
7.0.280.0000.01015.34
7.0.270.0110.00415.41
7.0.260.0060.00614.96
7.0.250.0030.00915.41
7.0.240.0040.01115.54
7.0.230.0040.01115.46
7.0.220.0070.00715.21
7.0.210.0000.00815.57
7.0.200.0040.00716.08
7.0.190.0030.01015.59
7.0.180.0030.01115.43
7.0.170.0060.00315.54
7.0.160.0040.00815.29
7.0.150.0030.00915.53
7.0.140.0030.03918.69
7.0.130.0100.00715.20
7.0.120.0040.01115.32
7.0.110.0000.01315.36
7.0.100.0040.00715.41
7.0.90.0060.00915.20
7.0.80.0100.00715.09
7.0.70.0030.01015.55
7.0.60.0110.04117.64
7.0.50.0040.03616.70
7.0.40.0030.05116.88
7.0.30.0180.02816.77
7.0.20.0100.02616.69
7.0.10.0200.04716.91
7.0.00.0050.02416.86
5.6.400.0030.01014.32
5.6.390.0040.01114.50
5.6.380.0030.00714.02
5.6.370.0000.00814.20
5.6.360.0030.01014.40
5.6.350.0060.00914.19
5.6.340.0150.00313.95
5.6.330.0060.00614.20
5.6.320.0060.00914.55
5.6.310.0060.00614.15
5.6.300.0040.00714.03
5.6.290.0110.00414.55
5.6.280.0060.04017.57
5.6.270.0040.00714.32
5.6.260.0090.00914.24
5.6.250.0080.00413.97
5.6.240.0100.00314.13
5.6.230.0060.00614.32
5.6.220.0100.00714.26
5.6.210.0030.04717.37
5.6.200.0040.02716.18
5.6.190.0090.02817.20
5.6.180.1850.02517.33
5.6.170.0100.02517.31
5.6.160.0110.04617.38
5.6.150.0020.02916.14
5.6.140.0040.04216.25
5.6.130.0050.02316.01
5.6.120.0120.04017.52
5.6.110.0050.04817.62
5.6.100.0030.04517.55
5.6.90.0050.03917.55
5.6.80.0020.02517.34
5.6.70.0170.03217.29
5.6.60.0060.00614.09
5.6.50.0060.00914.03
5.6.40.0080.00414.32
5.6.30.0050.00814.04
5.6.20.0030.01014.05
5.6.10.0040.00914.17
5.6.00.0040.00714.05
5.5.380.0110.00413.79
5.5.370.0040.01114.34
5.5.360.0140.00714.31
5.5.350.0170.02717.37
5.5.340.0030.04615.96
5.5.330.0100.02217.24
5.5.320.0130.03417.13
5.5.310.0150.03816.97
5.5.300.0050.04716.08
5.5.290.0030.04615.86
5.5.280.0050.03417.49
5.5.270.0120.03217.55
5.5.260.0070.02517.27
5.5.250.0110.04117.17
5.5.240.0120.03017.16
5.5.230.0050.00513.98
5.5.220.0030.01013.97
5.5.210.0070.01014.03
5.5.200.0040.01113.71
5.5.190.0060.00913.92
5.5.180.0030.01013.88
5.5.170.0070.00714.09
5.5.160.0000.01113.86
5.5.150.0040.01514.10
5.5.140.0080.00814.09
5.5.130.0120.00314.09
5.5.120.0030.00613.78
5.5.110.0100.00313.99
5.5.100.0080.00813.98
5.5.90.0030.01414.06
5.5.80.0030.00714.07
5.5.70.0090.00313.96
5.5.60.0040.00413.59
5.5.50.0070.00713.82
5.5.40.0030.00714.11
5.5.30.0030.01013.88
5.5.20.0000.01214.00
5.5.10.0030.01014.08
5.5.00.0040.01114.07
5.4.450.0130.02815.81
5.4.440.0410.03815.80
5.4.430.0360.02815.74
5.4.420.0100.02715.69
5.4.410.0140.02415.70
5.4.400.0670.02715.35
5.4.390.0820.03015.36
5.4.380.0170.03015.31
5.4.370.0100.02815.25
5.4.360.0120.02715.21
5.4.350.0080.03115.34
5.4.340.0070.03015.23
5.4.330.0000.00811.90
5.4.320.0080.02012.21
5.4.310.0050.02412.20
5.4.300.0040.02612.20
5.4.290.0060.02412.20
5.4.280.0040.02212.15
5.4.270.0050.02212.15
5.4.260.0030.03015.46
5.4.250.0060.02815.31
5.4.240.0050.02815.38
5.4.230.0070.02815.40
5.4.220.0080.02715.39
5.4.210.0070.02815.36
5.4.200.0100.03815.40
5.4.190.0070.03215.41
5.4.180.0020.03115.40
5.4.170.0070.03215.38
5.4.160.0100.03215.34
5.4.150.0090.02715.34
5.4.140.0020.04414.15
5.4.130.0030.03114.16
5.4.120.0000.04414.21
5.4.110.0120.03414.21
5.4.100.0050.02814.21
5.4.90.0050.03214.21
5.4.80.0130.02214.21
5.4.70.0020.03314.18
5.4.60.0050.02514.15
5.4.50.0080.02614.21
5.4.40.0140.02114.23
5.4.30.0110.02814.18
5.4.20.0050.02814.11
5.4.10.0080.02614.11
5.4.00.0030.03013.94
5.3.290.0110.02512.35
5.3.280.0070.03713.29
5.3.270.0100.03413.24
5.3.260.0110.02913.33
5.3.250.0090.03013.18
5.3.240.0060.03113.29
5.3.230.0130.02413.24
5.3.220.0110.03913.24
5.3.210.0050.03013.31
5.3.200.0050.04513.19
5.3.190.0090.02913.22
5.3.180.0100.02713.35
5.3.170.0080.02813.30
5.3.160.0070.02813.27
5.3.150.0060.03313.27
5.3.140.0060.03013.32
5.3.130.0130.03313.23
5.3.120.0140.02813.27
5.3.110.0150.02513.26
5.3.100.0080.02713.01
5.3.90.0090.02713.03
5.3.80.0050.03012.97
5.3.70.0070.02913.00
5.3.60.0120.02712.90
5.3.50.0070.02912.97
5.3.40.0110.02712.96
5.3.30.0210.01912.94
5.3.20.0080.03812.82
5.3.10.0110.02412.81
5.3.00.0060.03112.81
5.2.170.0070.04011.10
5.2.160.0000.05310.98
5.2.150.0030.06311.23
5.2.140.0170.04311.11
5.2.130.0170.03011.09
5.2.120.0030.04011.19
5.2.110.0030.04011.17
5.2.100.0100.05311.19
5.2.90.0100.03711.18
5.2.80.0070.05710.99
5.2.70.0130.04710.92
5.2.60.0030.04011.13
5.2.50.0070.03711.11
5.2.40.0000.04310.97
5.2.30.0070.04010.96
5.2.20.0030.04311.03
5.2.10.0070.03710.95
5.2.00.0000.04710.55
5.1.60.0030.03710.04
5.1.50.0070.03310.00
5.1.40.0000.0479.96
5.1.30.0000.03710.42
5.1.20.0000.04010.18
5.1.10.0070.03310.06
5.1.00.0070.0339.91
5.0.50.0030.0278.46
5.0.40.0030.0278.67
5.0.30.0030.0438.38
5.0.20.0030.0278.26
5.0.10.0070.0378.27
5.0.00.0100.0338.25
4.4.90.0100.0237.27
4.4.80.0100.0137.27
4.4.70.0070.0177.27
4.4.60.0030.0207.27
4.4.50.0070.0307.27
4.4.40.0100.0237.27
4.4.30.0030.0237.27
4.4.20.0000.0237.27
4.4.10.0070.0177.27
4.4.00.0030.0337.27
4.3.110.0070.0177.27
4.3.100.0000.0237.27
4.3.90.0000.0207.27
4.3.80.0030.0437.27
4.3.70.0100.0137.27
4.3.60.0000.0207.27
4.3.50.0070.0177.27
4.3.40.0070.0337.27
4.3.30.0070.0237.27
4.3.20.0030.0207.27
4.3.10.0000.0237.27
4.3.00.0070.0277.94

preferences:
43.7 ms | 401 KiB | 5 Q