3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(json_encode(array())); var_dump(json_encode(new stdClass));

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)
8.3.60.0070.00718.31
8.3.50.0160.00521.12
8.3.40.0120.00318.34
8.3.30.0090.01218.79
8.3.20.0080.00020.16
8.3.10.0050.00320.58
8.3.00.0040.00419.25
8.2.180.0100.01018.03
8.2.170.0090.00922.96
8.2.160.0110.00420.35
8.2.150.0100.00024.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0070.00022.07
8.2.110.0060.00321.11
8.2.100.0040.00817.78
8.2.90.0040.00418.84
8.2.80.0000.00817.97
8.2.70.0000.00817.50
8.2.60.0040.00417.90
8.2.50.0060.00318.10
8.2.40.0060.00317.96
8.2.30.0050.00519.30
8.2.20.0000.00717.46
8.2.10.0040.00418.01
8.2.00.0000.00717.45
8.1.280.0140.00025.92
8.1.270.0040.00423.96
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00323.80
8.1.230.0080.00317.58
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0040.00417.22
8.1.190.0040.00417.22
8.1.180.0000.00818.10
8.1.170.0040.00418.36
8.1.160.0000.00721.93
8.1.150.0040.00418.73
8.1.140.0000.01117.22
8.1.130.0030.00317.63
8.1.120.0040.00417.21
8.1.110.0030.00517.31
8.1.100.0000.00717.28
8.1.90.0000.00717.35
8.1.80.0050.00217.20
8.1.70.0000.00717.34
8.1.60.0060.00317.45
8.1.50.0080.00017.28
8.1.40.0000.00717.25
8.1.30.0000.00917.42
8.1.20.0040.00417.47
8.1.10.0000.00817.42
8.1.00.0040.00417.25
8.0.300.0000.00818.77
8.0.290.0000.00716.63
8.0.280.0000.00718.27
8.0.270.0030.00317.24
8.0.260.0030.00317.23
8.0.250.0030.00316.93
8.0.240.0000.00816.84
8.0.230.0000.00716.77
8.0.220.0030.00316.71
8.0.210.0060.00316.61
8.0.200.0040.00416.86
8.0.190.0030.00616.88
8.0.180.0030.00316.71
8.0.170.0050.00216.70
8.0.160.0000.00716.83
8.0.150.0030.00316.60
8.0.140.0070.00316.59
8.0.130.0040.00413.11
8.0.120.0040.00416.60
8.0.110.0040.00416.67
8.0.100.0050.00316.64
8.0.90.0040.00416.53
8.0.80.0090.00916.70
8.0.70.0030.00516.74
8.0.60.0040.00416.86
8.0.50.0050.00316.79
8.0.30.0110.00917.02
8.0.20.0120.00717.40
8.0.10.0030.00316.83
8.0.00.0050.01216.71
7.4.330.0020.00215.00
7.4.320.0030.00316.26
7.4.300.0060.00016.44
7.4.290.0000.00616.40
7.4.280.0110.00016.36
7.4.270.0040.00416.44
7.4.260.0030.00316.27
7.4.250.0040.00416.46
7.4.240.0030.00316.37
7.4.230.0000.00716.44
7.4.220.0090.01516.31
7.4.210.0070.00716.36
7.4.200.0000.00716.15
7.4.160.0180.00616.20
7.4.150.0080.01117.40
7.4.140.0110.00617.86
7.4.130.0080.01016.31
7.4.120.0060.01216.28
7.4.110.0080.00816.41
7.4.100.0070.01016.40
7.4.90.0130.00616.51
7.4.80.0030.01318.80
7.4.70.0100.00716.25
7.4.60.0120.00416.27
7.4.50.0030.00616.25
7.4.40.0130.00316.43
7.4.30.0110.00716.27
7.4.00.0040.01214.55
7.3.330.0060.00012.96
7.3.320.0000.00613.09
7.3.310.0000.00716.17
7.3.300.0030.00316.16
7.3.290.0040.01516.11
7.3.280.0090.00616.15
7.3.270.0110.00717.40
7.3.260.0060.01016.15
7.3.250.0110.00716.08
7.3.240.0060.01316.12
7.3.230.0100.00616.43
7.3.210.0060.01116.40
7.3.200.0100.01019.39
7.3.190.0080.00816.13
7.3.180.0140.00316.09
7.3.170.0030.01516.27
7.3.160.0060.01116.45
7.2.330.0100.01316.64
7.2.320.0130.00616.54
7.2.310.0140.00316.30
7.2.300.0060.00916.25
7.2.290.0170.00316.05
7.2.60.0040.00816.76
7.2.50.0190.01016.85
7.1.200.0030.01015.52
7.1.70.0040.00416.74
7.1.60.0090.01519.32
7.1.50.0080.01116.71
7.1.00.0030.07722.40
7.0.200.0000.00916.73
7.0.140.0000.07322.12
7.0.90.0470.05319.98
7.0.80.0700.07319.95
7.0.70.0370.07719.95
7.0.60.0570.05319.91
7.0.50.0400.05320.34
7.0.40.0130.07320.11
7.0.30.0000.05720.11
7.0.20.0030.08320.08
7.0.10.0100.08020.07
7.0.00.0130.06020.07
5.6.280.0100.06721.04
5.6.240.0000.08720.66
5.6.230.0100.08720.62
5.6.220.0100.08320.66
5.6.210.0130.07720.46
5.6.200.0030.08720.93
5.6.190.0030.06721.08
5.6.180.0100.07721.02
5.6.170.0130.07720.95
5.6.160.0070.06321.09
5.6.150.0070.05320.95
5.6.140.0100.07720.99
5.6.130.0030.05721.04
5.6.120.0030.07720.91
5.6.110.0070.05321.04
5.6.100.0070.05721.11
5.6.90.0100.07321.01
5.6.80.0030.07720.43
5.6.70.0070.06720.36
5.6.60.0100.07320.31
5.6.50.0070.08320.40
5.6.40.0100.06020.45
5.6.30.0070.07320.31
5.6.20.0130.07320.36
5.6.10.0100.07020.43
5.6.00.0130.04320.40
5.5.380.0070.07320.37
5.5.370.0070.07320.50
5.5.360.0030.08320.37
5.5.350.0070.08320.39
5.5.340.0130.07720.86
5.5.330.0130.03720.89
5.5.320.0000.06020.80
5.5.310.0030.08320.91
5.5.300.0100.07020.88
5.5.290.0070.06320.79
5.5.280.0030.05020.86
5.5.270.0030.05320.79
5.5.260.0070.08320.90
5.5.250.0070.07720.66
5.5.240.0070.08020.15
5.5.230.0070.08020.16
5.5.220.0170.05720.29
5.5.210.0070.08019.99
5.5.200.0100.06320.08
5.5.190.0030.08320.21
5.5.180.0100.07720.17
5.5.160.0070.04720.26
5.5.150.0070.07320.22
5.5.140.0070.07720.27
5.5.130.0070.06320.11
5.5.120.0030.08320.09
5.5.110.0130.07320.11
5.5.100.0170.07320.06
5.5.90.0100.07720.06
5.5.80.0070.07720.05
5.5.70.0130.07320.09
5.5.60.0200.06320.11
5.5.50.0070.07720.13
5.5.40.0070.05020.14
5.5.30.0030.07720.08
5.5.20.0070.04320.07
5.5.10.0130.07320.01
5.5.00.0130.03720.10
5.4.450.0100.08019.44
5.4.440.0130.07319.44
5.4.430.0130.07019.24
5.4.420.0000.07319.45
5.4.410.0030.08319.29
5.4.400.0030.06719.07
5.4.390.0030.04719.08
5.4.380.0070.06718.95
5.4.370.0070.07019.03
5.4.360.0100.06318.90
5.4.350.0130.07019.03
5.4.340.0100.08019.02
5.4.320.0000.08319.12
5.4.310.0030.08319.05
5.4.300.0100.07019.03
5.4.290.0070.07719.02
5.4.280.0130.06319.02
5.4.270.0130.07718.96
5.4.260.0100.06719.04
5.4.250.0100.04318.99
5.4.240.0100.07319.02
5.4.230.0130.06319.06
5.4.220.0030.08018.97
5.4.210.0030.07318.80
5.4.200.0130.07319.02
5.4.190.0030.08018.89
5.4.180.0070.07318.95
5.4.170.0070.07018.80
5.4.160.0000.05018.95
5.4.150.0030.04019.01
5.4.140.0030.06716.26
5.4.130.0030.04016.01
5.4.120.0000.04716.28
5.4.110.0100.03016.40
5.4.100.0000.04016.34
5.4.90.0030.04016.21
5.4.80.0000.04016.41
5.4.70.0030.04016.21
5.4.60.0030.03716.18
5.4.50.0070.03716.30
5.4.40.0000.04316.36
5.4.30.0000.04316.29
5.4.20.0030.03716.33
5.4.10.0030.04016.41
5.4.00.0100.03315.77
5.3.290.0070.07014.61
5.3.280.0070.08014.58
5.3.270.0070.05714.44
5.3.260.0030.04014.51
5.3.250.0000.04014.54
5.3.240.0070.04014.51
5.3.230.0070.04314.58
5.3.220.0030.03714.55
5.3.210.0100.03714.47
5.3.200.0100.03714.47
5.3.190.0000.04314.42
5.3.180.0000.04014.38
5.3.170.0030.06014.56
5.3.160.0070.03714.52
5.3.150.0130.03314.53
5.3.140.0030.06014.50
5.3.130.0000.06314.53
5.3.120.0070.04014.39
5.3.110.0000.04014.53
5.3.100.0030.05714.02
5.3.90.0030.03714.00
5.3.80.0000.03713.97
5.3.70.0100.03014.04
5.3.60.0000.04013.77
5.3.50.0070.03313.70
5.3.40.0070.04713.90
5.3.30.0000.04013.66
5.3.20.0000.04013.59
5.3.10.0070.06013.59
5.3.00.0030.03713.54
5.2.170.0030.03011.18
5.2.160.0070.06011.18
5.2.150.0000.03311.14
5.2.140.0070.02711.00
5.2.130.0030.02711.08
5.2.120.0000.03011.06
5.2.110.0070.06010.95
5.2.100.0000.03011.09
5.2.90.0030.05310.96
5.2.80.0000.02711.14
5.2.70.0130.05010.94
5.2.60.0030.05011.08
5.2.50.0000.03311.04
5.2.40.0000.03011.02
5.2.30.0030.04711.04
5.2.20.0100.02710.95
5.2.10.0000.03010.93
5.2.00.0100.02310.73
5.1.60.0000.0309.87
5.1.50.0000.0279.98
5.1.40.0030.02310.00
5.1.30.0070.02310.23
5.1.20.0000.03010.35
5.1.10.0000.0309.90
5.1.00.0100.02010.11
5.0.50.0030.0208.38
5.0.40.0000.0278.38
5.0.30.0000.0308.29
5.0.20.0000.0238.04
5.0.10.0070.0438.15
5.0.00.0030.0638.04
4.4.90.0000.0177.19
4.4.80.0000.0177.19
4.4.70.0030.0137.19
4.4.60.0100.0077.19
4.4.50.0000.0177.19
4.4.40.0000.0237.19
4.4.30.0000.0177.19
4.4.20.0000.0177.19
4.4.10.0000.0177.19
4.4.00.0070.0177.19
4.3.110.0070.0107.19
4.3.100.0030.0107.19
4.3.90.0030.0137.19
4.3.80.0030.0577.19
4.3.70.0070.0307.19
4.3.60.0000.0377.19
4.3.50.0000.0377.19
4.3.40.0070.0307.19
4.3.30.0000.0377.19
4.3.20.0030.0307.19
4.3.10.0000.0377.19
4.3.00.0070.0307.19

preferences:
44.37 ms | 401 KiB | 5 Q