3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(3, 4); $b =& $a[0]; $c = $a; var_dump($a); //$c[0] = 5; var_dump($a); unset($b); $c[0] = 6; var_dump($a);

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)
8.3.40.0040.01118.89
8.3.30.0070.00720.21
8.3.20.0000.00720.25
8.3.10.0080.00021.92
8.3.00.0040.00422.32
8.2.170.0070.00722.96
8.2.160.0100.00322.20
8.2.150.0050.00325.66
8.2.140.0050.00324.66
8.2.130.0030.00526.16
8.2.120.0040.00420.80
8.2.110.0090.00022.08
8.2.100.0040.00817.78
8.2.90.0060.00618.96
8.2.80.0040.00419.31
8.2.70.0030.00517.63
8.2.60.0070.00017.80
8.2.50.0000.00918.07
8.2.40.0050.00519.88
8.2.30.0020.00519.44
8.2.20.0000.00817.67
8.2.10.0070.00017.68
8.2.00.0070.00417.68
8.1.270.0040.00423.99
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0100.00023.79
8.1.230.0080.00519.04
8.1.220.0030.00617.79
8.1.210.0050.00318.77
8.1.200.0090.00017.35
8.1.190.0030.00517.30
8.1.180.0060.00318.78
8.1.170.0090.00018.72
8.1.160.0070.00018.73
8.1.150.0000.00718.62
8.1.140.0000.00717.27
8.1.130.0050.00317.82
8.1.120.0000.00717.36
8.1.110.0040.00417.29
8.1.100.0030.00517.43
8.1.90.0040.00417.30
8.1.80.0040.00417.41
8.1.70.0040.00417.42
8.1.60.0040.00417.40
8.1.50.0040.00417.44
8.1.40.0030.00617.49
8.1.30.0000.00717.55
8.1.20.0050.00317.56
8.1.10.0070.00017.59
8.1.00.0000.00917.51
8.0.300.0000.00818.77
8.0.290.0000.00717.05
8.0.280.0030.00318.29
8.0.270.0040.00417.20
8.0.260.0030.00316.68
8.0.250.0000.00716.96
8.0.240.0040.00416.95
8.0.230.0030.00316.91
8.0.220.0000.00816.84
8.0.210.0030.00316.70
8.0.200.0030.00316.82
8.0.190.0030.00616.77
8.0.180.0040.00416.84
8.0.170.0040.00416.80
8.0.160.0070.00016.80
8.0.150.0040.00416.69
8.0.140.0040.00416.70
8.0.130.0000.00513.21
8.0.120.0080.00016.88
8.0.110.0000.00816.89
8.0.100.0000.00716.71
8.0.90.0080.00016.85
8.0.80.0070.00716.84
8.0.70.0030.00316.84
8.0.60.0020.00516.70
8.0.50.0050.00316.80
8.0.30.0100.00916.91
8.0.20.0120.00717.40
8.0.10.0050.00216.95
8.0.00.0130.00816.56
7.4.330.0020.00215.00
7.4.320.0030.00316.44
7.4.300.0000.00616.45
7.4.290.0070.00016.45
7.4.280.0000.00716.54
7.4.270.0040.00416.39
7.4.260.0030.00313.16
7.4.250.0000.00716.51
7.4.240.0020.00616.53
7.4.230.0040.00416.46
7.4.220.0100.01016.49
7.4.210.0090.00516.52
7.4.200.0000.00716.61
7.4.190.0000.00716.40
7.4.160.0090.01316.50
7.4.150.0090.00917.40
7.4.140.0130.00817.86
7.4.130.0070.01116.54
7.4.120.0030.01416.53
7.4.110.0140.00316.48
7.4.100.0110.00616.45
7.4.90.0090.00816.45
7.4.80.0120.00919.39
7.4.70.0090.00616.45
7.4.60.0180.00016.38
7.4.50.0000.00816.22
7.4.40.0100.00722.77
7.4.30.0070.01616.22
7.4.00.0030.01415.12
7.3.330.0030.00313.05
7.3.320.0030.00313.13
7.3.310.0000.00716.24
7.3.300.0000.00716.03
7.3.290.0090.01216.23
7.3.280.0120.00516.20
7.3.270.0140.00717.40
7.3.260.0160.01016.28
7.3.250.0130.00616.46
7.3.240.0180.00016.22
7.3.230.0170.00016.52
7.3.210.0130.00316.24
7.3.200.0090.01216.56
7.3.190.0100.01016.28
7.3.180.0060.01016.27
7.3.170.0150.00016.43
7.3.160.0140.00716.25
7.3.120.0030.01014.51
7.2.330.0110.00616.45
7.2.320.0110.00516.46
7.2.310.0090.00916.63
7.2.300.0150.00316.62
7.2.290.0060.01016.39
7.2.60.0030.01017.02
7.2.00.0030.00919.29
7.1.200.0030.00915.94
7.1.100.0070.00318.29
7.1.70.0040.00417.19
7.1.60.0130.01019.32
7.1.50.0030.01016.85
7.1.00.0070.03022.35
7.0.200.0040.00416.46
7.0.140.0030.07322.08
7.0.100.0030.08719.90
7.0.90.0030.03719.89
7.0.80.0170.05019.88
7.0.70.0170.03720.02
7.0.60.0100.07019.94
7.0.50.0200.04020.25
7.0.40.0030.08320.18
7.0.30.0100.08020.07
7.0.20.0170.03020.00
7.0.10.0070.06720.05
7.0.00.0100.03720.13
5.6.280.0070.07021.03
5.6.250.0130.03320.71
5.6.240.0030.04020.71
5.6.230.0030.04320.65
5.6.220.0000.04720.60
5.6.210.0030.06020.65
5.6.200.0230.07721.03
5.6.190.0130.07321.03
5.6.180.0000.05021.08
5.6.170.0070.06721.02
5.6.160.0130.07721.02
5.6.150.0070.04321.01
5.6.140.0130.04021.03
5.6.130.0030.07320.99
5.6.120.0130.06021.12
5.6.110.0100.08320.91
5.6.100.0030.03721.02
5.6.90.0130.05021.04
5.6.80.0100.07020.46
5.6.70.0000.04020.39
5.6.60.0100.04720.50
5.6.50.0030.06320.32
5.6.40.0070.03320.30
5.6.30.0030.04020.39
5.6.20.0000.04320.39
5.6.10.0100.04320.38
5.6.00.0100.07320.27
5.5.380.0070.07320.44
5.5.370.0030.07020.44
5.5.360.0030.04020.30
5.5.350.0030.05320.41
5.5.340.0030.06020.75
5.5.330.0070.07020.90
5.5.320.0030.04320.86
5.5.310.0070.04020.82
5.5.300.0170.07320.72
5.5.290.0100.06020.82
5.5.280.0030.08720.82
5.5.270.0100.03320.81
5.5.260.0100.05020.85
5.5.250.0100.06720.72
5.5.240.0000.04020.20
5.5.230.0100.08020.10
5.5.220.0100.07320.23
5.5.210.0070.03320.29
5.5.200.0030.04320.25
5.5.190.0030.04020.23
5.5.180.0070.09020.27
5.5.160.0030.06020.16
5.5.150.0130.06720.16
5.5.140.0100.08320.06
5.5.130.0030.05719.98
5.5.120.0030.07020.11
5.5.110.0030.04320.25
5.5.100.0030.05320.14
5.5.90.0070.05719.95
5.5.80.0030.05020.09
5.5.70.0070.04020.14
5.5.60.0030.03319.95
5.5.50.0030.08320.02
5.5.40.0070.07020.14
5.5.30.0070.07019.95
5.5.20.0170.07020.04
5.5.10.0070.04320.13
5.5.00.0100.07720.03
5.4.450.0070.06719.23
5.4.440.0100.03019.27
5.4.430.0070.07719.29
5.4.420.0030.04019.28
5.4.410.0100.03319.22
5.4.400.0070.03019.03
5.4.390.0070.03319.12
5.4.380.0170.05719.07
5.4.370.0170.06719.11
5.4.360.0070.06018.81
5.4.350.0000.03719.07
5.4.340.0000.04318.79
5.4.320.0030.06019.04
5.4.310.0030.03718.94
5.4.300.0130.04318.81
5.4.290.0030.07719.06
5.4.280.0070.04318.78
5.4.270.0030.07019.04
5.4.260.0070.05319.12
5.4.250.0070.03719.14
5.4.240.0030.06719.05
5.4.230.0030.03718.77
5.4.220.0030.06319.16
5.4.210.0070.03719.03
5.4.200.0070.07719.09
5.4.190.0070.06018.89
5.4.180.0070.07319.01
5.4.170.0030.08018.88
5.4.160.0030.07719.07
5.4.150.0100.07019.02
5.4.140.0100.02716.28
5.4.130.0070.03016.36
5.4.120.0100.06716.29
5.4.110.0070.07016.21
5.4.100.0100.07016.33
5.4.90.0100.02716.39
5.4.80.0000.04016.36
5.4.70.0000.04016.22
5.4.60.0100.05316.20
5.4.50.0070.04016.40
5.4.40.0030.03316.43
5.4.30.0170.05316.20
5.4.20.0030.07016.27
5.4.10.0100.03316.18
5.4.00.0030.03315.71
5.3.290.0000.04314.48
5.3.280.0100.06314.55
5.3.270.0070.03014.52
5.3.260.0000.03714.59
5.3.250.0070.07714.46
5.3.240.0070.07714.47
5.3.230.0070.04014.55
5.3.220.0000.08014.54
5.3.210.0000.03714.52
5.3.200.0070.04014.42
5.3.190.0070.06714.42
5.3.180.0030.05714.55
5.3.170.0070.04714.38
5.3.160.0070.04714.55
5.3.150.0100.02714.53
5.3.140.0000.04014.53
5.3.130.0030.03314.41
5.3.120.0000.05714.50
5.3.110.0100.07014.49
5.3.100.0030.04713.89
5.3.90.0100.06714.02
5.3.80.0070.07314.00
5.3.70.0070.06013.82
5.3.60.0030.03313.94
5.3.50.0070.06013.91
5.3.40.0000.03713.80
5.3.30.0000.04013.84
5.3.20.0070.05713.64
5.3.10.0000.03713.45
5.3.00.0070.03313.59
5.2.170.0030.06310.98
5.2.160.0070.02311.22
5.2.150.0000.03310.95
5.2.140.0070.02710.94
5.2.130.0070.04711.08
5.2.120.0000.04710.96
5.2.110.0030.02310.96
5.2.100.0070.05311.04
5.2.90.0030.03711.09
5.2.80.0170.05010.88
5.2.70.0070.05311.14
5.2.60.0000.03011.05
5.2.50.0070.02710.82
5.2.40.0070.02710.95
5.2.30.0070.06310.92
5.2.20.0000.04310.79
5.2.10.0000.05010.93
5.2.00.0030.02710.79
5.1.60.0070.02010.07
5.1.50.0070.01710.02
5.1.40.0000.0309.80
5.1.30.0070.04710.34
5.1.20.0070.02710.40
5.1.10.0030.05010.10
5.1.00.0100.01310.05
5.0.50.0030.0339.73
5.0.40.0030.0239.73
5.0.30.0000.0439.73
5.0.20.0000.0209.73
5.0.10.0070.0239.73
5.0.00.0000.0509.73
4.4.90.0000.0309.73
4.4.80.0030.0139.73
4.4.70.0070.0339.73
4.4.60.0000.0209.73
4.4.50.0070.0209.73
4.4.40.0000.0239.73
4.4.30.0030.0139.73
4.4.20.0000.0179.73
4.4.10.0000.0179.73
4.4.00.0000.0339.73
4.3.110.0030.0139.73
4.3.100.0000.0139.73
4.3.90.0000.0179.73
4.3.80.0100.0409.73
4.3.70.0000.0209.73
4.3.60.0000.0309.73
4.3.50.0000.0279.73
4.3.40.0000.0309.73
4.3.30.0000.0179.73
4.3.20.0000.0179.73
4.3.10.0000.0179.73
4.3.00.0000.0179.73

preferences:
41.41 ms | 400 KiB | 5 Q