3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo(array &$x = NULL){$x = $x?: array();} $x = array(); foo($x[0]); foo($x[1]); foo($x[2]); foo($x[3]); var_dump($x);

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)
8.3.60.0150.00018.55
8.3.50.0120.00721.09
8.3.40.0140.00018.71
8.3.30.0040.01819.12
8.3.20.0090.00620.14
8.3.10.0050.00321.89
8.3.00.0070.00022.40
8.2.180.0090.00616.50
8.2.170.0110.00422.96
8.2.160.0100.00320.53
8.2.150.0050.00324.18
8.2.140.0000.02024.66
8.2.130.0000.01426.16
8.2.120.0000.00819.77
8.2.110.0050.00522.27
8.2.100.0070.00417.78
8.2.90.0030.00617.97
8.2.80.0000.00817.97
8.2.70.0040.00417.50
8.2.60.0000.00817.93
8.2.50.0060.00318.07
8.2.40.0060.00318.07
8.2.30.0030.00617.98
8.2.20.0070.00017.60
8.2.10.0050.00317.62
8.2.00.0060.00317.73
8.1.280.0120.00625.92
8.1.270.0000.00820.40
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00322.60
8.1.230.0080.00420.89
8.1.220.0040.00417.75
8.1.210.0040.00418.93
8.1.200.0000.01017.22
8.1.190.0000.00817.35
8.1.180.0040.00418.10
8.1.170.0050.00518.57
8.1.160.0000.00718.89
8.1.150.0070.00018.59
8.1.140.0040.00417.45
8.1.130.0030.00717.93
8.1.120.0050.00217.45
8.1.110.0000.00717.47
8.1.100.0040.00417.36
8.1.90.0000.00717.52
8.1.80.0000.00717.42
8.1.70.0040.00417.30
8.1.60.0000.00817.62
8.1.50.0040.00417.58
8.1.40.0000.00717.50
8.1.30.0000.00917.64
8.1.20.0030.00617.67
8.1.10.0050.00317.50
8.1.00.0000.00917.45
8.0.300.0020.00519.94
8.0.290.0090.00016.75
8.0.280.0000.00918.50
8.0.270.0050.00217.13
8.0.260.0030.00316.86
8.0.250.0030.00316.84
8.0.240.0050.00316.97
8.0.230.0000.00716.90
8.0.220.0050.00216.86
8.0.210.0070.00016.79
8.0.200.0100.00016.91
8.0.190.0040.00416.96
8.0.180.0070.00016.80
8.0.170.0040.00416.79
8.0.160.0030.00316.92
8.0.150.0040.00416.83
8.0.140.0000.00816.87
8.0.130.0070.00013.28
8.0.120.0040.00416.87
8.0.110.0050.00316.80
8.0.100.0070.00016.79
8.0.90.0040.00416.92
8.0.80.0110.00416.88
8.0.70.0000.00816.79
8.0.60.0000.00716.95
8.0.50.0040.00416.68
8.0.30.0080.01217.00
8.0.20.0090.00817.40
8.0.10.0070.00017.03
8.0.00.0100.00916.58
7.4.330.0000.00715.13
7.4.320.0000.00616.52
7.4.300.0030.00316.41
7.4.290.0000.00716.60
7.4.280.0030.00316.51
7.4.270.0070.00016.61
7.4.260.0000.00716.39
7.4.250.0050.00316.42
7.4.240.0010.00616.51
7.4.230.0030.00316.70
7.4.220.0130.01216.52
7.4.210.0080.00716.57
7.4.200.0000.00716.48
7.4.190.0050.00216.71
7.4.160.0170.00016.29
7.4.150.0140.00317.40
7.4.140.0110.01117.86
7.4.130.0090.01016.46
7.4.120.0050.01216.61
7.4.110.0130.01016.43
7.4.100.0100.00716.56
7.4.90.0090.00916.30
7.4.80.0100.01019.39
7.4.70.0100.01316.33
7.4.60.0100.01016.42
7.4.50.0040.00416.25
7.4.40.0070.01022.77
7.4.30.0100.00616.46
7.4.00.0020.01514.82
7.3.330.0020.00213.28
7.3.320.0030.00313.30
7.3.310.0000.00716.34
7.3.300.0000.00716.18
7.3.290.0060.00916.27
7.3.280.0010.01416.29
7.3.270.0070.01017.40
7.3.260.0080.00816.49
7.3.250.0080.01116.28
7.3.240.0060.01216.31
7.3.230.0120.01216.39
7.3.210.0120.00416.66
7.3.200.0090.00919.39
7.3.190.0100.01016.42
7.3.180.0070.01316.34
7.3.170.0120.00516.46
7.3.160.0110.00716.39
7.3.120.0080.00714.62
7.3.110.0130.00614.80
7.3.100.0100.00714.44
7.3.90.0090.00015.06
7.3.80.0030.00614.68
7.3.70.0110.00314.76
7.3.60.0000.01314.77
7.3.50.0030.00914.85
7.3.40.0140.00014.72
7.3.30.0090.00914.80
7.3.20.0110.01116.69
7.3.10.0080.00716.51
7.3.00.0020.01116.80
7.2.330.0140.00616.69
7.2.320.0110.01116.61
7.2.310.0110.01216.74
7.2.300.0060.01016.36
7.2.290.0090.01216.75
7.2.250.0060.01215.04
7.2.240.0040.01115.22
7.2.230.0090.00914.93
7.2.220.0030.00614.85
7.2.210.0030.00915.02
7.2.200.0030.01014.76
7.2.190.0000.00915.09
7.2.180.0080.00414.98
7.2.170.0110.00715.14
7.2.130.0050.00516.90
7.2.120.0040.00817.05
7.2.110.0100.00316.62
7.2.100.0070.00716.67
7.2.90.0060.00316.99
7.2.80.0030.01316.79
7.2.70.0090.01316.91
7.2.60.0080.00316.68
7.2.50.0040.01416.80
7.2.40.0060.00917.12
7.2.30.0080.00816.98
7.2.20.0030.01016.71
7.2.10.0030.01616.88
7.2.00.0050.00817.76
7.1.330.0060.00615.86
7.1.320.0060.00315.67
7.1.310.0140.00315.67
7.1.300.0060.00315.82
7.1.290.0060.00915.59
7.1.280.0060.01015.68
7.1.270.0040.01815.77
7.1.260.0040.00815.68
7.1.250.0040.01115.61
7.1.100.0000.01118.03
7.1.70.0070.00017.18
7.1.60.0030.02119.82
7.1.50.0160.00616.94
7.1.00.0070.03322.45
7.0.200.0000.00916.63
7.0.140.0070.07021.99
7.0.60.0070.08019.91
7.0.50.0070.06717.96
7.0.40.0000.09720.21
7.0.30.0270.08320.14
7.0.20.0200.08320.10
7.0.10.0200.07720.30
7.0.00.0070.07720.15
5.6.280.0030.07321.02
5.6.210.0130.06320.47
5.6.200.0070.08318.16
5.6.190.0230.06720.39
5.6.180.0200.08020.57
5.6.170.0170.05320.56
5.6.160.0070.08720.50
5.6.150.0200.07018.19
5.6.140.0170.07018.14
5.6.130.0070.07018.18
5.6.120.0070.09021.15
5.6.110.0030.05321.02
5.6.100.0070.08721.13
5.6.90.0270.07020.98
5.6.80.0100.06320.43
5.6.70.4530.03320.41
5.5.350.0230.07020.35
5.5.340.0070.03718.00
5.5.330.0030.04020.38
5.5.320.0200.04020.25
5.5.310.0170.04320.34
5.5.300.0030.08718.04
5.5.290.0030.04318.04
5.5.280.0030.04020.76
5.5.270.0230.06720.66
5.5.260.0200.08020.73
5.5.250.0070.08320.59
5.5.240.0300.06720.24
5.4.450.0430.05019.47
5.4.440.0170.06019.45
5.4.430.0100.06019.47
5.4.420.0170.05019.48
5.4.410.0600.05319.34
5.4.400.0400.05318.79
5.4.390.0400.05718.78
5.4.380.0230.05318.61
5.4.370.0200.04318.50
5.4.360.0130.05018.74
5.4.350.0090.03512.02
5.4.340.0080.04112.01
5.4.320.0050.04612.51
5.4.310.0080.04112.50
5.4.300.0060.04112.51
5.4.290.0040.03912.50
5.4.280.0030.03712.40
5.4.270.0070.04412.40
5.4.260.0030.04512.39
5.4.250.0100.05018.86
5.4.240.0100.05018.97
5.4.230.0030.06318.91
5.4.220.0030.05718.78
5.4.210.0030.05318.95
5.4.200.0100.05018.90
5.4.190.0100.06318.99
5.4.180.0130.04718.96
5.4.170.0130.05318.71
5.4.160.0100.08018.62
5.4.150.0030.08318.95
5.4.140.0100.06716.44
5.4.130.0130.07016.38
5.4.120.0000.05716.54
5.4.110.0070.06716.37
5.4.100.0030.05016.54
5.4.90.0070.04716.48
5.4.80.0100.04316.38
5.4.70.0070.04716.38
5.4.60.0030.05016.46
5.4.50.0100.06716.37
5.4.40.0100.04716.34
5.4.30.0100.04716.43
5.4.20.0100.05716.52
5.4.10.0130.04316.49
5.4.00.0100.04315.83
5.3.290.0080.04312.80
5.3.280.0130.07014.73
5.3.270.0130.07314.64
5.3.260.0130.07314.68
5.3.250.0170.05014.59
5.3.240.0170.05314.69
5.3.230.0070.04714.73
5.3.220.0000.05314.46
5.3.210.0030.05314.58
5.3.200.0030.05314.63
5.3.190.0030.05014.47
5.3.180.0100.04714.72
5.3.170.0030.05314.64
5.3.160.0030.05014.58
5.3.150.0130.04314.63
5.3.140.0030.05714.63
5.3.130.0000.05714.55
5.3.120.0030.05314.63
5.3.110.0000.05714.54
5.3.100.0070.04714.12
5.3.90.0070.04714.03
5.3.80.0070.04714.02
5.3.70.0130.04714.04
5.3.60.0130.05713.83
5.3.50.0130.04014.03
5.3.40.0100.04714.03
5.3.30.0170.04013.97
5.3.20.0200.05713.86
5.3.10.0100.04313.63
5.3.00.0070.05013.61
5.2.170.0070.05311.22
5.2.160.0000.04711.21
5.2.150.0000.04310.97
5.2.140.0100.05011.22
5.2.130.0070.04010.93
5.2.120.0200.03711.18
5.2.110.0000.04311.05
5.2.100.0100.03311.17
5.2.90.0000.04311.08
5.2.80.0000.04711.00
5.2.70.0030.06011.27
5.2.60.0070.04311.14
5.2.50.0100.03311.00
5.2.40.0030.04011.00
5.2.30.0070.03711.04
5.2.20.0130.03011.14
5.2.10.0100.03310.95
5.2.00.0030.04010.94
5.1.60.0100.0279.97
5.1.50.0030.03310.05
5.1.40.0030.0339.98
5.1.30.0070.03310.42
5.1.20.0070.03310.43
5.1.10.0000.0409.90
5.1.00.0030.03310.07
5.0.50.0030.0278.64
5.0.40.0030.0278.45
5.0.30.0030.0408.25
5.0.20.0000.0278.29
5.0.10.0100.0208.21
5.0.00.0070.0378.20
4.4.90.0070.0276.24
4.4.80.0000.0206.24
4.4.70.0000.0276.24
4.4.60.0030.0206.24
4.4.50.0030.0206.24
4.4.40.0100.0276.24
4.4.30.0030.0206.24
4.4.20.0030.0206.24
4.4.10.0030.0206.24
4.4.00.0070.0276.24
4.3.110.0030.0206.24
4.3.100.0070.0176.24
4.3.90.0100.0136.24
4.3.80.0100.0336.24
4.3.70.0030.0206.24
4.3.60.0000.0236.24
4.3.50.0000.0236.24
4.3.40.0000.0376.24
4.3.30.0030.0206.60
4.3.20.0000.0236.60
4.3.10.0000.0236.60
4.3.00.0100.0236.65

preferences:
56.01 ms | 400 KiB | 5 Q