3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(); $b = $a; $b['foo'] = 42; var_dump($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)
8.3.60.0140.00718.56
8.3.50.0100.01021.20
8.3.40.0110.00418.84
8.3.30.0110.00419.27
8.3.20.0080.00020.17
8.3.10.0000.00822.04
8.3.00.0020.00522.39
8.2.180.0000.01516.63
8.2.170.0110.00322.96
8.2.160.0110.00419.04
8.2.150.0040.00424.18
8.2.140.0030.00624.66
8.2.130.0080.00026.16
8.2.120.0000.00819.23
8.2.110.0040.00422.31
8.2.100.0090.00317.72
8.2.90.0040.00419.29
8.2.80.0050.00317.97
8.2.70.0050.00317.48
8.2.60.0040.00417.93
8.2.50.0030.00618.07
8.2.40.0070.00717.84
8.2.30.0040.00418.14
8.2.20.0040.00417.53
8.2.10.0040.00417.73
8.2.00.0030.00517.59
8.1.280.0200.00025.92
8.1.270.0080.00022.07
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00323.85
8.1.230.0040.00719.08
8.1.220.0040.00417.74
8.1.210.0060.00318.77
8.1.200.0070.00417.35
8.1.190.0000.00817.41
8.1.180.0040.00418.61
8.1.170.0000.00818.39
8.1.160.0030.00322.07
8.1.150.0000.00718.49
8.1.140.0000.00817.40
8.1.130.0030.00317.87
8.1.120.0080.00017.29
8.1.110.0030.00517.34
8.1.100.0000.00817.40
8.1.90.0040.00417.41
8.1.80.0000.00717.30
8.1.70.0000.00717.35
8.1.60.0050.00217.51
8.1.50.0030.00517.48
8.1.40.0030.00517.41
8.1.30.0040.00417.55
8.1.20.0040.00417.49
8.1.10.0020.00517.50
8.1.00.0030.00517.44
8.0.300.0060.00318.77
8.0.290.0030.00316.93
8.0.280.0000.00718.39
8.0.270.0060.00317.11
8.0.260.0070.00016.82
8.0.250.0040.00416.83
8.0.240.0070.00016.93
8.0.230.0030.00316.82
8.0.220.0070.00016.72
8.0.210.0000.00716.73
8.0.200.0030.00316.93
8.0.190.0040.00416.91
8.0.180.0040.00416.87
8.0.170.0000.00916.82
8.0.160.0000.00716.87
8.0.150.0000.00716.73
8.0.140.0080.00016.85
8.0.130.0030.00513.29
8.0.120.0060.00316.84
8.0.110.0090.00016.74
8.0.100.0070.00016.81
8.0.90.0050.00216.81
8.0.80.0090.00916.83
8.0.70.0050.00216.75
8.0.60.0050.00316.82
8.0.50.0050.00316.77
8.0.30.0110.00816.95
8.0.20.0110.01117.40
8.0.10.0000.00716.91
8.0.00.0070.01416.67
7.4.330.0000.00515.00
7.4.320.0030.00316.41
7.4.300.0060.00016.58
7.4.290.0000.00716.45
7.4.280.0030.00316.39
7.4.270.0000.00716.54
7.4.260.0070.00016.51
7.4.250.0000.00716.39
7.4.240.0000.00716.57
7.4.230.0030.00316.54
7.4.220.0100.01016.50
7.4.210.0080.01116.43
7.4.200.0050.00216.57
7.4.190.0070.00016.65
7.4.160.0040.01216.38
7.4.150.0030.02017.40
7.4.140.0150.00817.86
7.4.130.0080.00816.54
7.4.120.0130.00316.33
7.4.110.0180.03016.41
7.4.100.0170.00716.42
7.4.90.0140.00316.61
7.4.80.0030.01419.39
7.4.70.0100.00616.23
7.4.60.0180.00016.34
7.4.50.0040.00416.38
7.4.40.0060.01022.77
7.4.30.0100.00716.66
7.4.00.0100.00715.05
7.3.330.0050.00013.05
7.3.320.0000.00513.04
7.3.310.0040.00416.21
7.3.300.0030.00316.15
7.3.290.0070.01116.20
7.3.280.0120.00516.18
7.3.270.0100.01017.40
7.3.260.0040.01216.48
7.3.250.0090.00816.33
7.3.240.0070.01316.30
7.3.230.0140.00316.39
7.3.210.0100.00616.26
7.3.200.0140.00619.39
7.3.190.0100.00716.23
7.3.180.0130.00316.57
7.3.170.0040.01116.40
7.3.160.0080.00916.54
7.3.120.0120.00314.66
7.2.330.0090.00916.42
7.2.320.0040.01516.33
7.2.310.0030.01316.37
7.2.300.0120.00916.21
7.2.290.0090.00616.55
7.2.00.0100.00619.23
7.1.200.0030.01015.85
7.1.100.0040.01117.91
7.1.70.0000.00716.87
7.1.60.0030.00716.83
7.1.50.0000.01116.63
7.1.00.0030.04722.36
7.0.200.0000.01516.82
7.0.140.0000.07722.12
7.0.80.0530.07719.86
7.0.70.0000.08319.95
7.0.60.0370.08019.98
7.0.50.0470.08320.23
7.0.40.0100.08320.08
7.0.30.0070.04720.00
7.0.20.0170.07320.19
7.0.10.0130.07320.03
7.0.00.0070.09020.11
5.6.280.0000.07320.98
5.6.230.0030.06020.62
5.6.220.0100.07320.57
5.6.210.0030.07020.64
5.6.200.0130.07720.95
5.6.190.0130.09321.10
5.6.180.0070.04021.03
5.6.170.0070.09021.04
5.6.160.0100.08721.01
5.6.150.0000.09321.13
5.6.140.0100.07321.16
5.6.130.0030.08321.01
5.6.120.0130.04321.07
5.6.110.0130.06720.95
5.6.100.0130.07720.94
5.6.90.0100.07320.94
5.6.80.0070.07720.49
5.6.70.0130.07020.45
5.6.60.0070.07320.39
5.6.50.0030.08320.55
5.6.40.0100.07020.36
5.6.30.0100.07320.39
5.6.20.0070.07720.36
5.6.10.0070.06720.45
5.6.00.0100.04020.39
5.5.370.0030.08320.51
5.5.360.0130.07720.43
5.5.350.0130.07720.44
5.5.340.0100.06320.77
5.5.330.0070.05320.77
5.5.320.0030.06020.92
5.5.310.0070.08720.63
5.5.300.0100.07720.79
5.5.290.0070.08020.82
5.5.280.0070.04720.82
5.5.270.0130.07720.88
5.5.260.0200.07320.90
5.5.250.0100.08020.66
5.5.240.0070.08320.13
5.5.230.0100.08720.18
5.5.220.0100.07020.26
5.5.210.0100.05020.20
5.5.200.0100.06320.18
5.5.190.0100.06020.22
5.5.180.0030.07319.98
5.5.160.0070.07020.27
5.5.150.0130.07020.09
5.5.140.0130.08020.24
5.5.130.0070.08020.20
5.5.120.0100.04320.22
5.5.110.0000.05020.07
5.5.100.0100.09320.08
5.5.90.0130.06020.16
5.5.80.0070.07020.12
5.5.70.0030.08320.05
5.5.60.0070.08320.06
5.5.50.0070.06720.04
5.5.40.0100.07719.98
5.5.30.0200.07020.07
5.5.20.0030.08020.08
5.5.10.0070.04019.97
5.5.00.0030.04320.02
5.4.450.0070.08719.44
5.4.440.0000.08319.23
5.4.430.0070.07719.30
5.4.420.0030.05719.46
5.4.410.0100.07319.09
5.4.400.0070.07319.04
5.4.390.0100.06719.05
5.4.380.0100.04019.23
5.4.370.0000.07719.10
5.4.360.0170.06019.03
5.4.350.0030.07719.03
5.4.340.0030.05318.81
5.4.320.0100.04018.81
5.4.310.0130.07019.12
5.4.300.0030.06719.11
5.4.290.0000.08019.04
5.4.280.0170.05718.78
5.4.270.0070.07719.14
5.4.260.0170.04719.06
5.4.250.0030.06318.94
5.4.240.0070.07319.02
5.4.230.0100.07318.95
5.4.220.0070.04319.12
5.4.210.0130.06719.13
5.4.200.0100.04019.02
5.4.190.0100.08019.05
5.4.180.0070.07018.98
5.4.170.0200.06319.04
5.4.160.0030.08019.05
5.4.150.0100.04019.02
5.4.140.0030.05316.35
5.4.130.0170.06016.32
5.4.120.0030.07316.11
5.4.110.0070.06716.28
5.4.100.0170.02716.30
5.4.90.0100.04016.30
5.4.80.0100.07016.19
5.4.70.0100.06716.34
5.4.60.0030.05016.21
5.4.50.0100.03716.33
5.4.40.0100.03716.28
5.4.30.0070.06016.18
5.4.20.0100.06716.19
5.4.10.0000.06316.33
5.4.00.0070.06015.83
5.3.290.0070.07714.52
5.3.280.0000.07014.58
5.3.270.0170.07014.54
5.3.260.0070.03714.61
5.3.250.0030.06714.59
5.3.240.0200.05014.56
5.3.230.0070.07714.55
5.3.220.0100.07714.54
5.3.210.0070.06314.53
5.3.200.0030.07714.38
5.3.190.0070.07014.42
5.3.180.0070.07714.50
5.3.170.0070.07314.54
5.3.160.0200.04314.53
5.3.150.0070.03714.42
5.3.140.0030.04014.46
5.3.130.0070.07714.40
5.3.120.0030.07314.50
5.3.110.0070.07314.48
5.3.100.0030.04313.98
5.3.90.0030.04713.85
5.3.80.0100.03013.77
5.3.70.0030.03714.01
5.3.60.0200.02714.00
5.3.50.0100.03013.80
5.3.40.0000.04013.93
5.3.30.0000.04013.85
5.3.20.0100.02713.64
5.3.10.0000.03313.61
5.3.00.0000.03013.59
5.2.170.0070.03011.63
5.2.160.0000.03711.63
5.2.150.0030.03311.63
5.2.140.0030.03011.63
5.2.130.0070.02311.63
5.2.120.0000.03011.63
5.2.110.0030.02311.63
5.2.100.0000.02711.63
5.2.90.0070.03711.63
5.2.80.0070.02311.63
5.2.70.0070.04711.63
5.2.60.0000.02711.63
5.2.50.0030.02311.63
5.2.40.0030.02311.63
5.2.30.0030.02311.63
5.2.20.0000.03011.63
5.2.10.0000.04311.63
5.2.00.0000.03011.63
5.1.60.0030.02311.63
5.1.50.0070.02011.63
5.1.40.0000.04011.63
5.1.30.0000.02711.63
5.1.20.0030.03311.63
5.1.10.0100.03311.63
5.1.00.0030.02311.63
5.0.50.0030.01711.63
5.0.40.0000.02011.63
5.0.30.0000.03311.63
5.0.20.0000.02311.63
5.0.10.0000.02311.63
5.0.00.0030.03011.63
4.4.90.0000.01311.63
4.4.80.0000.01311.63
4.4.70.0000.02011.63
4.4.60.0000.01711.63
4.4.50.0000.01311.63
4.4.40.0000.02311.63
4.4.30.0030.01311.63
4.4.20.0000.01711.63
4.4.10.0000.01711.63
4.4.00.0000.02711.63
4.3.110.0000.01311.63
4.3.100.0030.01311.63
4.3.90.0000.01711.63
4.3.80.0030.02711.63
4.3.70.0000.01311.63
4.3.60.0000.01311.63
4.3.50.0000.01711.63
4.3.40.0030.02011.63
4.3.30.0000.01311.63
4.3.20.0000.01311.63
4.3.10.0000.01311.63
4.3.00.0000.01711.63

preferences:
64.08 ms | 401 KiB | 5 Q