3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(); $b = &$a; $a[] = $b;

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)
8.3.60.0060.01218.43
8.3.50.0080.00921.99
8.3.40.0120.00318.68
8.3.30.0090.00618.43
8.3.20.0040.00418.48
8.3.10.0050.00320.49
8.3.00.0040.00423.48
8.2.180.0070.01016.63
8.2.170.0140.00022.96
8.2.160.0100.00720.39
8.2.150.0080.00024.18
8.2.140.0030.00624.66
8.2.130.0070.00026.16
8.2.120.0050.00319.36
8.2.110.0040.00720.89
8.2.100.0060.00617.72
8.2.90.0000.00719.27
8.2.80.0060.00317.97
8.2.70.0050.00517.63
8.2.60.0030.00617.93
8.2.50.0030.00518.07
8.2.40.0040.00418.09
8.2.30.0050.00319.83
8.2.20.0030.00617.55
8.2.10.0040.00417.67
8.2.00.0000.00717.54
8.1.280.0070.01025.92
8.1.270.0000.00723.99
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0030.00622.42
8.1.230.0030.00721.03
8.1.220.0050.00318.77
8.1.210.0000.00818.91
8.1.200.0060.00317.23
8.1.190.0040.00417.54
8.1.180.0000.01018.10
8.1.170.0060.00318.46
8.1.160.0070.00018.86
8.1.150.0000.00818.63
8.1.140.0040.00417.38
8.1.130.0070.00017.86
8.1.120.0000.00717.37
8.1.110.0040.00417.29
8.1.100.0050.00217.44
8.1.90.0070.00017.42
8.1.80.0000.00717.36
8.1.70.0000.00717.36
8.1.60.0000.00717.52
8.1.50.0080.00017.45
8.1.40.0050.00217.46
8.1.30.0000.00717.47
8.1.20.0000.00817.66
8.1.10.0000.00717.35
8.1.00.0040.00417.34
8.0.300.0060.00319.98
8.0.290.0000.00716.63
8.0.280.0030.00318.36
8.0.270.0000.00717.19
8.0.260.0030.00316.75
8.0.250.0050.00316.79
8.0.240.0090.00016.85
8.0.230.0030.00316.93
8.0.220.0000.00616.71
8.0.210.0000.00816.76
8.0.200.0070.00016.90
8.0.190.0000.00716.89
8.0.180.0070.00016.83
8.0.170.0000.00816.73
8.0.160.0000.00716.84
8.0.150.0040.00416.72
8.0.140.0000.00716.73
8.0.130.0000.00513.23
8.0.120.0000.00816.81
8.0.110.0030.00316.77
8.0.100.0070.00016.72
8.0.90.0000.00716.72
8.0.80.0060.00916.79
8.0.70.0030.00416.68
8.0.60.0070.00016.94
8.0.50.0040.00416.69
8.0.30.0130.00516.94
8.0.20.0130.01017.40
8.0.10.0050.00216.99
8.0.00.0070.01116.57
7.4.330.0020.00213.43
7.4.320.0000.01016.50
7.4.300.0030.00316.44
7.4.290.0030.00316.55
7.4.280.0030.00516.57
7.4.270.0070.00016.50
7.4.260.0050.00013.19
7.4.250.0040.00416.27
7.4.240.0000.00716.46
7.4.230.0070.00016.55
7.4.220.0200.00316.56
7.4.210.0050.01116.51
7.4.200.0040.00416.43
7.4.190.0050.00316.66
7.4.160.0060.00916.56
7.4.150.0070.01017.40
7.4.140.0130.00517.86
7.4.130.0110.00616.40
7.4.120.0060.01316.39
7.4.110.0110.00716.29
7.4.100.0070.01616.52
7.4.90.0090.00816.59
7.4.80.0060.01019.37
7.4.70.0100.00716.42
7.4.60.0070.00716.29
7.4.50.0030.00616.11
7.4.40.0030.01122.27
7.4.30.0150.00616.39
7.4.00.0050.01115.03
7.3.330.0020.00213.18
7.3.320.0040.00412.91
7.3.310.0070.00016.26
7.3.300.0030.00316.11
7.3.290.0060.00916.17
7.3.280.0110.00716.17
7.3.270.0070.01017.40
7.3.260.0060.01018.24
7.3.250.0100.01016.31
7.3.240.0030.01216.29
7.3.230.0100.00716.39
7.3.210.0030.01316.44
7.3.200.0150.00619.39
7.3.190.0120.00416.48
7.3.180.0070.00716.29
7.3.170.0090.00916.44
7.3.160.0100.01316.18
7.3.120.0070.00914.79
7.3.110.0100.00714.83
7.3.100.0110.00714.66
7.3.90.0110.00714.43
7.3.80.0040.01414.83
7.3.70.0000.01514.80
7.3.60.0000.01214.79
7.3.50.0030.01014.59
7.3.40.0100.00014.72
7.3.30.0060.00914.55
7.3.20.0130.00616.58
7.3.10.0000.01616.52
7.3.00.0100.01016.31
7.2.330.0110.00616.71
7.2.320.0140.00316.64
7.2.310.0090.00916.39
7.2.300.0060.01216.55
7.2.290.0100.00616.50
7.2.250.0070.01014.82
7.2.240.0030.01715.07
7.2.230.0100.00614.97
7.2.220.0150.00415.11
7.2.210.0040.00714.89
7.2.200.0060.00614.72
7.2.190.0110.00414.76
7.2.180.0100.00314.91
7.2.170.0030.00614.93
7.2.60.0030.01016.57
7.2.00.0000.01319.34
7.1.330.0070.00715.76
7.1.320.0060.00615.52
7.1.310.0090.00615.75
7.1.300.0060.00615.34
7.1.290.0060.00815.52
7.1.280.0070.00715.67
7.1.270.0090.00615.70
7.1.260.0000.01415.36
7.1.200.0040.00715.78
7.1.100.0040.00717.95
7.1.70.0000.00716.71
7.1.60.0040.00717.21
7.1.50.0070.01416.86
7.1.00.0070.06722.57
7.0.200.0000.01516.57
7.0.140.0030.07722.21
7.0.70.0000.07021.65
7.0.60.0070.02721.53
7.0.50.0000.07722.10
7.0.40.0000.04020.15
7.0.30.0070.08720.16
7.0.20.0000.04320.05
7.0.10.0070.03720.02
7.0.00.0030.03320.08
5.6.280.0000.07720.77
5.6.220.0070.04020.43
5.6.210.0030.03320.57
5.6.200.0030.04021.09
5.6.190.0000.08020.95
5.6.180.0000.04021.01
5.6.170.0070.04020.94
5.6.160.0030.04321.09
5.6.150.0100.06321.11
5.6.140.0070.04321.09
5.6.130.0030.04021.02
5.6.120.0030.07021.00
5.6.110.0030.05720.93
5.6.100.0000.06320.97
5.6.90.0000.05321.09
5.6.80.0000.08020.46
5.6.70.0030.03720.49
5.6.60.0030.05020.48
5.6.50.0030.04020.37
5.6.40.0000.04020.29
5.6.30.0030.05320.27
5.6.20.0030.05320.50
5.6.10.0070.07720.33
5.6.00.0000.04020.34
5.5.360.0030.04020.32
5.5.350.0000.03320.39
5.5.340.0000.03720.88
5.5.330.0000.03320.88
5.5.320.0100.04720.80
5.5.310.0000.05320.75
5.5.300.0030.04020.79
5.5.290.0030.07020.89
5.5.280.0070.04320.71
5.5.270.0030.07320.80
5.5.260.0000.04320.80
5.5.250.0030.09020.60
5.5.240.0070.05720.30
5.5.230.0030.03720.11
5.5.220.0070.04720.18
5.5.210.0030.04020.24
5.5.200.0000.04320.23
5.5.190.0000.08020.16
5.5.180.0130.06020.21
5.5.160.0000.04020.16
5.5.150.0000.04020.15
5.5.140.0000.04020.15
5.5.130.0030.03720.15
5.5.120.0000.04020.18
5.5.110.0030.03719.96
5.5.100.0030.03720.04
5.5.90.0000.03319.98
5.5.80.0030.03719.99
5.5.70.0000.04020.16
5.5.60.0000.03720.03
5.5.50.0030.03020.04
5.5.40.0030.03719.97
5.5.30.0000.04020.06
5.5.20.0000.03320.01
5.5.10.0000.03319.95
5.5.00.0000.04720.00
5.4.450.0030.05019.11
5.4.440.0030.06719.37
5.4.430.0000.04019.36
5.4.420.0030.03719.29
5.4.410.0070.03319.32
5.4.400.0000.04719.14
5.4.390.0000.08019.21
5.4.380.0030.06318.94
5.4.370.0030.03318.80
5.4.360.0070.03319.10
5.4.350.0030.07319.13
5.4.340.0000.07719.09
5.4.320.0000.04019.01
5.4.310.0000.03719.13
5.4.300.0000.03719.06
5.4.290.0070.03319.21
5.4.280.0030.03719.10
5.4.270.0070.03319.00
5.4.260.0000.04018.80
5.4.250.0000.03719.04
5.4.240.0000.03019.10
5.4.230.0000.03318.94
5.4.220.0000.03718.78
5.4.210.0070.03719.04
5.4.200.0000.04018.97
5.4.190.0070.03019.11
5.4.180.0000.03018.90
5.4.170.0000.03718.95
5.4.160.0000.03319.02
5.4.150.0030.03019.02
5.4.140.0000.03016.36
5.4.130.0000.03016.22
5.4.120.0070.02316.22
5.4.110.0000.04016.37
5.4.100.0000.03016.30
5.4.90.0000.03016.41
5.4.80.0000.03016.36
5.4.70.0000.03016.19
5.4.60.0000.03016.31
5.4.50.0070.02316.16
5.4.40.0000.03016.33
5.4.30.0000.03016.23
5.4.20.0030.02716.42
5.4.10.0000.03016.38
5.4.00.0030.02715.68
5.3.290.0070.03014.62
5.3.280.0030.03014.54
5.3.270.0030.04014.57
5.3.260.0000.03014.50
5.3.250.0000.03014.56
5.3.240.0000.03014.58
5.3.230.0030.03314.45
5.3.220.0000.03014.56
5.3.210.0000.03014.39
5.3.200.0030.03014.54
5.3.190.0030.03014.55
5.3.180.0000.03314.55
5.3.170.0030.02714.53
5.3.160.0030.02714.54
5.3.150.0000.03014.51
5.3.140.0000.03014.54
5.3.130.0030.02714.49
5.3.120.0030.03014.39
5.3.110.0100.02314.40
5.3.100.0000.03013.97
5.3.90.0000.03313.99
5.3.80.0030.02714.00
5.3.70.0000.03713.98
5.3.60.0000.03313.95
5.3.50.0000.03013.80
5.3.40.0000.03713.87
5.3.30.0030.02713.63
5.3.20.0000.03013.38
5.3.10.0030.03313.43
5.3.00.0030.03713.40
5.2.170.0000.02311.20
5.2.160.0030.02011.10
5.2.150.0000.02711.12
5.2.140.0000.02311.17
5.2.130.0030.02311.08
5.2.120.0030.02011.09
5.2.110.0000.02710.91
5.2.100.0000.02710.95
5.2.90.0000.06011.09
5.2.80.0000.05011.00
5.2.70.0070.05711.13
5.2.60.0000.06010.92
5.2.50.0000.03011.00
5.2.40.0000.02310.85
5.2.30.0030.04710.96
5.2.20.0030.03710.91
5.2.10.0000.03010.79
5.2.00.0000.03710.70
5.1.60.0070.0209.97
5.1.50.0000.02710.06
5.1.40.0000.0239.95
5.1.30.0000.03310.38
5.1.20.0000.02710.38
5.1.10.0070.04710.06
5.1.00.0000.05310.12
5.0.50.0030.0208.66
5.0.40.0000.0238.66
5.0.30.0030.0278.66
5.0.20.0000.0478.66
5.0.10.0000.0338.66
5.0.00.0000.0438.66
4.4.90.0070.0308.66
4.4.80.0000.0138.66
4.4.70.0000.0278.66
4.4.60.0030.0338.66
4.4.50.0000.0178.66
4.4.40.0000.0308.66
4.4.30.0000.0208.66
4.4.20.0030.0138.66
4.4.10.0000.0178.66
4.4.00.0000.0238.66
4.3.110.0000.0208.66
4.3.100.0000.0378.66
4.3.90.0030.0238.66
4.3.80.0000.0508.66
4.3.70.0000.0178.66
4.3.60.0000.0138.66
4.3.50.0000.0138.66
4.3.40.0000.0538.66
4.3.30.0000.0178.66
4.3.20.0000.0178.66
4.3.10.0000.0178.66
4.3.00.0000.0138.66

preferences:
38.91 ms | 401 KiB | 5 Q