3v4l.org

run code in 300+ PHP versions simultaneously
<?php new A(); class A { public function jsonSerialize() { return array(); } } new B(); class B implements JsonSerializable { public function jsonSerialize() { return array(); } } new B(); new C(); class C implements JsonSerializable { public function jsonSerialize() { return array(); } }

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)
8.3.60.0120.00318.30
8.3.50.0100.00821.09
8.3.40.0090.00618.79
8.3.30.0060.00820.39
8.3.20.0030.00520.71
8.3.10.0040.00421.14
8.3.00.0100.00023.53
8.2.180.0160.00618.16
8.2.170.0070.01022.96
8.2.160.0070.00720.57
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0080.00026.16
8.2.120.0040.00421.04
8.2.110.0120.00019.36
8.2.100.0030.00717.72
8.2.90.0000.00819.17
8.2.80.0030.00517.97
8.2.70.0060.00617.50
8.2.60.0000.00817.80
8.2.50.0040.00418.07
8.2.40.0030.00617.77
8.2.30.0030.00519.38
8.2.20.0040.00417.73
8.2.10.0000.00717.69
8.2.00.0000.00717.61
8.1.270.0000.00824.66
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0060.00322.35
8.1.230.0000.01220.88
8.1.220.0080.00018.77
8.1.210.0080.00019.02
8.1.200.0060.00317.35
8.1.190.0000.00817.41
8.1.180.0060.00618.10
8.1.170.0060.00318.59
8.1.160.0070.00018.68
8.1.150.0000.00818.61
8.1.140.0030.00517.34
8.1.130.0000.00717.77
8.1.120.0070.00017.31
8.1.110.0040.00417.23
8.1.100.0080.00017.38
8.1.90.0040.00417.38
8.1.80.0070.00017.35
8.1.70.0030.00317.23
8.1.60.0060.00317.35
8.1.50.0070.00017.39
8.1.40.0080.00017.48
8.1.30.0040.00417.52
8.1.20.0040.00417.61
8.1.10.0030.00617.43
8.1.00.0070.00417.52
8.0.300.0000.00720.04
8.0.290.0070.00016.93
8.0.280.0070.00018.39
8.0.270.0030.00317.22
8.0.260.0060.00316.74
8.0.250.0000.00716.88
8.0.240.0050.00316.87
8.0.230.0070.00016.86
8.0.220.0040.00316.90
8.0.210.0030.00516.97
8.0.200.0060.00016.87
8.0.190.0060.00316.97
8.0.180.0000.00716.95
8.0.170.0000.00716.99
8.0.160.0000.00716.98
8.0.150.0030.00316.88
8.0.140.0000.00816.72
8.0.130.0050.00013.30
8.0.120.0000.00716.87
8.0.110.0040.00416.95
8.0.100.0070.00016.96
8.0.90.0040.00317.02
8.0.80.0100.01116.83
8.0.70.0040.00416.90
8.0.60.0040.00416.84
8.0.50.0030.00516.80
8.0.30.0110.01017.00
8.0.20.0110.00817.40
8.0.10.0000.00816.88
8.0.00.0130.00816.69
7.4.330.0050.00016.71
7.4.320.0070.00016.45
7.4.300.0030.00316.59
7.4.290.0040.00416.43
7.4.280.0000.00816.44
7.4.270.0000.00716.58
7.4.260.0000.00613.12
7.4.250.0030.00616.41
7.4.240.0070.00016.51
7.4.230.0000.00716.29
7.4.220.0060.01416.48
7.4.210.0080.00816.52
7.4.200.0060.00016.25
7.4.190.0000.00716.64
7.4.160.0070.01016.55
7.4.150.0070.01117.40
7.4.140.0130.00317.86
7.4.130.0100.01016.55
7.4.120.0090.00916.45
7.4.110.0090.00916.36
7.4.100.0100.00716.41
7.4.90.0140.00616.56
7.4.80.0070.01119.39
7.4.70.0040.01116.55
7.4.60.0140.00316.50
7.4.50.0060.00316.39
7.4.40.0100.00722.77
7.4.30.0070.01016.63
7.4.00.0110.00414.62
7.3.330.0060.00013.16
7.3.320.0060.00013.34
7.3.310.0030.00316.17
7.3.300.0030.00316.30
7.3.290.0100.00516.30
7.3.280.0080.01016.31
7.3.270.0140.00317.40
7.3.260.0150.00618.24
7.3.250.0060.01216.39
7.3.240.0100.01416.24
7.3.230.0150.00316.39
7.3.210.0130.00316.41
7.3.200.0110.00719.39
7.3.190.0120.00616.38
7.3.180.0080.00816.34
7.3.170.0030.01316.46
7.3.160.0100.00716.32
7.3.120.0100.00314.59
7.2.330.0100.00716.32
7.2.320.0030.01316.61
7.2.310.0140.01016.27
7.2.300.0140.00316.44
7.2.290.0100.00716.39
7.2.80.0040.01216.36
7.2.60.0090.00316.86
7.2.00.0040.00719.35
7.1.200.0080.00415.59
7.1.100.0040.00717.70
7.1.70.0000.00816.98
7.1.60.0000.01419.17
7.1.50.0070.01716.81
7.1.00.0030.06322.51
7.0.200.0000.00816.76
7.0.140.0030.07022.09
7.0.80.0070.07319.91
7.0.70.0130.07319.97
7.0.60.0070.06019.87
7.0.50.0300.04720.37
7.0.40.0070.04720.13
7.0.30.0100.07020.14
7.0.20.0000.05319.96
7.0.10.0070.04320.12
7.0.00.0170.07020.17
5.6.280.0070.07020.89
5.6.230.0030.04320.60
5.6.220.0070.07720.50
5.6.210.0070.04020.77
5.6.200.0030.08020.96
5.6.190.0030.05321.06
5.6.180.0070.08321.11
5.6.170.0100.08321.01
5.6.160.0070.04721.00
5.6.150.0030.07721.09
5.6.140.0030.08021.01
5.6.130.0070.05021.14
5.6.120.0030.10320.94
5.6.110.0130.07321.08
5.6.100.0070.08720.95
5.6.90.0030.09021.06
5.6.80.0130.06020.52
5.6.70.0130.07020.43
5.6.60.0000.07320.48
5.6.50.0070.07720.52
5.6.40.0000.07320.40
5.6.30.0070.07320.40
5.6.20.0030.05720.48
5.6.10.0130.07020.36
5.6.00.0030.04720.35
5.5.370.0070.05320.38
5.5.360.0130.07320.45
5.5.350.0030.07020.39
5.5.340.0070.07020.78
5.5.330.0070.07320.86
5.5.320.0130.07720.87
5.5.310.0170.03720.64
5.5.300.0130.08720.93
5.5.290.0130.07720.76
5.5.280.0100.08020.92
5.5.270.0030.09020.80
5.5.260.0100.04320.93
5.5.250.0100.04020.59
5.5.240.0130.05020.27
5.5.230.0070.07720.02
5.5.220.0000.07720.21
5.5.210.0030.07320.15
5.5.200.0070.08320.27
5.5.190.0070.03720.18
5.5.180.0100.04020.14
5.5.160.0070.07720.18
5.5.150.0130.07020.22
5.5.140.0000.06320.20
5.5.130.0100.07320.23
5.5.120.0100.07320.26
5.5.110.0070.04320.27
5.5.100.0100.04020.16
5.5.90.0200.06720.10
5.5.80.0130.06320.07
5.5.70.0100.07020.16
5.5.60.0070.08320.07
5.5.50.0030.08020.09
5.5.40.0070.06320.16
5.5.30.0100.07320.15
5.5.20.0070.08720.00
5.5.10.0200.06720.04
5.5.00.0230.04320.05
5.4.450.0070.07319.37
5.4.440.0070.07319.22
5.4.430.0070.04719.35
5.4.420.0030.08019.35
5.4.410.0030.06019.04
5.4.400.0030.04319.04
5.4.390.0070.06719.13
5.4.380.0070.07318.88
5.4.370.0030.04018.90
5.4.360.0130.03019.13
5.4.350.0100.03318.90
5.4.340.0100.07318.85
5.4.320.0100.06019.03
5.4.310.0030.08019.16
5.4.300.0030.04319.09
5.4.290.0100.06319.04
5.4.280.0100.04319.09
5.4.270.0000.08018.90
5.4.260.0000.05019.14
5.4.250.0070.04018.89
5.4.240.0070.07719.18
5.4.230.0130.07019.13
5.4.220.0000.08019.11
5.4.210.0030.05019.17
5.4.200.0170.07019.13
5.4.190.0070.06719.03
5.4.180.0030.06018.89
5.4.170.0030.08018.86
5.4.160.0100.03719.16
5.4.150.0070.06319.02
5.4.140.0030.07716.44
5.4.130.0000.08316.45
5.4.120.0070.07016.41
5.4.110.0130.06316.38
5.4.100.0100.03016.55
5.4.90.0100.03716.49
5.4.80.0000.04316.55
5.4.70.0170.06016.31
5.4.60.0070.07016.30
5.4.50.0070.07316.48
5.4.40.0100.06716.49
5.4.30.0000.04316.39
5.4.20.0070.07316.35
5.4.10.0030.07316.41
5.4.00.0000.05715.90
5.3.290.0000.07014.67
5.3.280.0130.05314.52
5.3.270.0100.07314.63
5.3.260.0130.07014.75
5.3.250.0030.03714.56
5.3.240.0070.07314.54
5.3.230.0070.08014.52
5.3.220.0100.07014.55
5.3.210.0030.07714.50
5.3.200.0070.05314.52
5.3.190.0130.03714.67
5.3.180.0030.08014.58
5.3.170.0030.07314.66
5.3.160.0030.05314.61
5.3.150.0030.04314.62
5.3.140.0100.07314.56
5.3.130.0070.07014.61
5.3.120.0030.05314.58
5.3.110.0030.07314.54
5.3.100.0030.06014.07
5.3.90.0070.07313.95
5.3.80.0100.04314.05
5.3.70.0130.04714.11
5.3.60.0030.08013.93
5.3.50.0070.06714.01
5.3.40.0030.06013.84
5.3.30.0030.08013.96
5.3.20.0030.07713.58
5.3.10.0000.07313.71
5.3.00.0100.04313.55
5.2.170.0300.04013.49
5.2.160.0100.05713.49
5.2.150.0030.06713.49
5.2.140.0000.06713.49
5.2.130.0070.06313.49
5.2.120.0070.05313.49
5.2.110.0070.03013.49
5.2.100.0070.06013.49
5.2.90.0030.06013.49
5.2.80.0070.05013.49
5.2.70.0000.05013.49
5.2.60.0070.03713.49
5.2.50.0070.06013.49
5.2.40.0070.05313.49
5.2.30.0030.06313.49
5.2.20.0100.03313.49
5.2.10.0030.06013.49
5.2.00.0030.04313.49
5.1.60.0070.04713.49
5.1.50.0070.05713.49
5.1.40.0030.05313.49
5.1.30.0030.04313.49
5.1.20.0000.03013.49
5.1.10.0070.02713.49
5.1.00.0100.04713.49
5.0.50.0000.04313.49
5.0.40.0100.02713.49
5.0.30.0030.03713.49
5.0.20.0070.03313.49
5.0.10.0000.04713.49
5.0.00.0030.04013.49
4.4.90.0070.03013.49
4.4.80.0000.02013.49
4.4.70.0000.04013.49
4.4.60.0000.04013.49
4.4.50.0000.03713.49
4.4.40.0000.06013.49
4.4.30.0070.02713.49
4.4.20.0030.01713.49
4.4.10.0000.04013.49
4.4.00.0000.05013.49
4.3.110.0000.03313.49
4.3.100.0030.03313.49
4.3.90.0070.01713.49
4.3.80.0000.05713.49
4.3.70.0100.02013.49
4.3.60.0070.03013.49
4.3.50.0030.03313.49
4.3.40.0070.04013.49
4.3.30.0000.02313.49
4.3.20.0000.02313.49
4.3.10.0000.03313.49
4.3.00.0030.02713.49

preferences:
63.76 ms | 400 KiB | 5 Q