3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['foo' => null]; var_dump(json_encode(array_filter($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)
8.3.60.0070.01418.30
8.3.50.0070.01019.73
8.3.40.0110.00418.41
8.3.30.0070.00718.45
8.3.20.0000.00720.16
8.3.10.0080.00023.48
8.3.00.0080.00018.96
8.2.180.0090.00918.29
8.2.170.0110.00422.96
8.2.160.0030.01019.07
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0070.00020.35
8.2.120.0070.00026.35
8.2.110.0090.00022.14
8.2.100.0070.00417.66
8.2.90.0000.00817.84
8.2.80.0030.01017.97
8.2.70.0000.00817.38
8.2.60.0000.00818.93
8.2.50.0000.00818.10
8.2.40.0040.00420.59
8.2.30.0050.00319.24
8.2.20.0040.00417.52
8.2.10.0040.00417.86
8.2.00.0040.00418.04
8.1.280.0150.00625.92
8.1.270.0050.00323.79
8.1.260.0040.00428.09
8.1.250.0070.00028.09
8.1.240.0000.00920.69
8.1.230.0090.00321.03
8.1.220.0060.00317.74
8.1.210.0060.00618.85
8.1.200.0090.00017.12
8.1.190.0040.00417.22
8.1.180.0050.00318.10
8.1.170.0000.00718.40
8.1.160.0030.00318.96
8.1.150.0070.00018.79
8.1.140.0040.00419.49
8.1.130.0000.00817.62
8.1.120.0040.00417.40
8.1.110.0000.00717.33
8.1.100.0000.00717.35
8.1.90.0050.00317.27
8.1.80.0000.00717.30
8.1.70.0030.00317.43
8.1.60.0080.00017.51
8.1.50.0050.00217.50
8.1.40.0060.00317.30
8.1.30.0000.00817.43
8.1.20.0040.00417.59
8.1.10.0000.00817.34
8.1.00.0070.00017.32
8.0.300.0040.00419.91
8.0.290.0000.00716.63
8.0.280.0070.00018.41
8.0.270.0040.00417.18
8.0.260.0000.00617.06
8.0.250.0000.00616.89
8.0.240.0070.00016.79
8.0.230.0030.00316.78
8.0.220.0000.00716.67
8.0.210.0050.00316.81
8.0.200.0020.00516.88
8.0.190.0040.00716.82
8.0.180.0040.00416.83
8.0.170.0040.00416.84
8.0.160.0000.00716.81
8.0.150.0050.00216.65
8.0.140.0100.00016.80
8.0.130.0000.00513.18
8.0.120.0050.00316.79
8.0.110.0000.00816.68
8.0.100.0070.00016.69
8.0.90.0050.00316.77
8.0.80.0090.00616.79
8.0.70.0050.00216.80
8.0.60.0080.00016.70
8.0.50.0070.00016.68
8.0.30.0060.00917.17
8.0.20.0070.01417.40
8.0.10.0050.00216.73
8.0.00.0050.01416.59
7.4.330.0060.00015.08
7.4.320.0000.00616.50
7.4.300.0000.00616.52
7.4.290.0030.00616.42
7.4.280.0000.00716.42
7.4.270.0030.00316.42
7.4.260.0040.00416.45
7.4.250.0060.00316.46
7.4.240.0000.00616.33
7.4.230.0000.00716.42
7.4.220.0060.01916.53
7.4.210.0080.00916.56
7.4.200.0080.00016.61
7.4.160.0150.00716.43
7.4.150.0090.00917.40
7.4.140.0090.01117.86
7.4.130.0070.01116.45
7.4.120.0110.00616.39
7.4.110.0120.00616.50
7.4.100.0090.00916.48
7.4.90.0170.00616.44
7.4.80.0110.00719.39
7.4.70.0060.00916.43
7.4.60.0150.00916.35
7.4.50.0070.00716.38
7.4.40.0060.01116.45
7.4.30.0110.00516.30
7.4.00.0080.00814.86
7.3.330.0070.00012.89
7.3.320.0050.00012.97
7.3.310.0080.00016.11
7.3.300.0030.00316.03
7.3.290.0030.00316.02
7.3.280.0090.00816.13
7.3.270.0030.01417.40
7.3.260.0130.00716.31
7.3.250.0120.01216.25
7.3.240.0100.00716.32
7.3.230.0030.01616.39
7.3.210.0160.00616.40
7.3.200.0100.01016.47
7.3.190.0110.00516.36
7.3.180.0130.01016.16
7.3.170.0000.01616.25
7.3.160.0120.00616.30
7.2.330.0090.00916.48
7.2.320.0060.01016.39
7.2.310.0090.01216.34
7.2.300.0100.00616.51
7.2.290.0080.00816.54
7.2.60.0030.01216.76
7.2.00.0040.01119.19
7.1.200.0090.00615.57
7.1.70.0070.00416.98
7.1.60.0040.00817.14
7.1.00.0000.07722.54
7.0.200.0040.01216.71
7.0.90.0170.08019.89
7.0.80.0100.08319.89
7.0.70.0570.06319.93
7.0.60.0400.07720.06
7.0.50.0570.07320.29
7.0.40.0030.07719.95
7.0.30.0100.08320.14
7.0.20.0030.05320.14
7.0.10.0170.03720.07
7.0.00.0130.07320.07
5.6.280.0070.07021.12
5.6.240.0100.08020.68
5.6.230.0070.05320.65
5.6.220.0100.08020.55
5.6.210.0130.07320.46
5.6.200.0030.05320.95
5.6.190.0070.08021.03
5.6.180.0030.08720.98
5.6.170.0170.07321.08
5.6.160.0070.04321.00
5.6.150.0030.07721.05
5.6.140.0100.04320.93
5.6.130.0100.04021.00
5.6.120.0100.07021.16
5.6.110.0070.07720.99
5.6.100.0130.07321.05
5.6.90.0070.08321.03
5.6.80.0030.07020.33
5.6.70.0000.08320.43
5.6.60.0000.05020.27
5.6.50.0100.06320.43
5.6.40.0100.07320.52
5.6.30.0000.09320.36
5.6.20.0070.07720.36
5.6.10.0030.08720.35
5.6.00.0100.07720.38
5.5.380.0030.04320.49
5.5.370.0070.08320.34
5.5.360.0100.05020.43
5.5.350.0100.08720.41
5.5.340.0100.05320.63
5.5.330.0100.08720.92
5.5.320.0000.05720.79
5.5.310.0030.05720.88
5.5.300.0030.04720.91
5.5.290.0070.07720.88
5.5.280.0070.07320.88
5.5.270.0030.05020.86
5.5.260.0100.03720.73
5.5.250.0100.06320.61
5.5.240.0130.05020.24
5.5.230.0170.07020.27
5.5.220.0030.06720.26
5.5.210.0100.07720.20
5.5.200.0130.07320.21
5.5.190.0100.07720.23
5.5.180.0070.08720.10
5.5.160.0030.04720.17
5.5.150.0100.06020.09
5.5.140.0170.07020.11
5.5.130.0030.08020.22
5.5.120.0130.07320.08
5.5.110.0100.05020.21
5.5.100.0130.04320.09
5.5.90.0130.07020.15
5.5.80.0070.05020.12
5.5.70.0130.07720.05
5.5.60.0130.06020.13
5.5.50.0130.03720.05
5.5.40.0070.07720.13
5.5.30.0130.07720.07
5.5.20.0070.06720.13
5.5.10.0100.08020.03
5.5.00.0100.04320.06

preferences:
53.5 ms | 400 KiB | 5 Q