3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(json_decode('{"a": 1}')); var_dump(json_decode('{"1": 1}')); var_dump(json_decode('{a: 1, "a": 1}')); // invalid JSON var_dump(json_decode('{"a\u0000b: 1}'));

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)
8.3.60.0090.00616.63
8.3.50.0080.01222.81
8.3.40.0140.00018.51
8.3.30.0100.00319.09
8.3.20.0070.00020.29
8.3.10.0000.00820.45
8.3.00.0050.00319.08
8.2.180.0070.01125.92
8.2.170.0100.01018.75
8.2.160.0070.00720.53
8.2.150.0000.00824.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0070.00020.98
8.2.110.0000.01020.52
8.2.100.0080.00417.78
8.2.90.0040.00418.92
8.2.80.0040.00417.97
8.2.70.0040.00417.63
8.2.60.0000.00817.91
8.2.50.0000.00818.07
8.2.40.0040.00418.09
8.2.30.0020.00521.21
8.2.20.0040.00417.65
8.2.10.0060.00317.93
8.2.00.0050.00317.46
8.1.280.0140.00025.92
8.1.270.0120.00622.05
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0100.00021.96
8.1.230.0060.00622.02
8.1.220.0050.00318.77
8.1.210.0030.00518.80
8.1.200.0100.00017.22
8.1.190.0000.00717.27
8.1.180.0040.00418.10
8.1.170.0030.00518.70
8.1.160.0000.00718.80
8.1.150.0000.00818.67
8.1.140.0000.00817.36
8.1.130.0000.00717.75
8.1.120.0000.00817.36
8.1.110.0070.00017.30
8.1.100.0000.00817.37
8.1.90.0000.00717.26
8.1.80.0000.00717.23
8.1.70.0070.00017.26
8.1.60.0030.00517.45
8.1.50.0040.00417.41
8.1.40.0080.00017.36
8.1.30.0040.00417.52
8.1.20.0040.00417.40
8.1.10.0040.00417.38
8.1.00.0070.00317.31
8.0.300.0000.00719.73
8.0.290.0000.00716.91
8.0.280.0070.00419.06
8.0.270.0030.00317.18
8.0.260.0090.00017.04
8.0.250.0040.00416.84
8.0.240.0030.00316.84
8.0.230.0030.00316.82
8.0.220.0000.00716.64
8.0.210.0030.00316.73
8.0.200.0060.00016.71
8.0.190.0000.00716.82
8.0.180.0000.00716.81
8.0.170.0050.00316.75
8.0.160.0000.00716.80
8.0.150.0050.00216.62
8.0.140.0050.00216.72
8.0.130.0050.00213.20
8.0.120.0080.00016.72
8.0.110.0000.00716.62
8.0.100.0050.00316.58
8.0.90.0000.00716.65
8.0.80.0060.01016.69
8.0.70.0030.00516.57
8.0.60.0080.00016.57
8.0.50.0000.00716.73
8.0.30.0150.00616.99
8.0.20.0090.00917.40
8.0.10.0040.00416.94
8.0.00.0100.00916.57
7.4.330.0020.00318.02
7.4.320.0070.00016.37
7.4.300.0000.00716.36
7.4.290.0030.00316.39
7.4.280.0050.00316.30
7.4.270.0030.00316.36
7.4.260.0100.00018.41
7.4.250.0000.00716.45
7.4.240.0010.00616.36
7.4.230.0000.00716.44
7.4.220.0120.00616.49
7.4.210.0070.00716.57
7.4.200.0000.00716.36
7.4.160.0120.00316.40
7.4.150.0150.00317.40
7.4.140.0150.00617.86
7.4.130.0060.01116.30
7.4.120.0070.01016.34
7.4.110.0160.00616.50
7.4.100.0110.00716.57
7.4.90.0030.01316.40
7.4.80.0140.00716.25
7.4.70.0160.00316.47
7.4.60.0150.01116.35
7.4.50.0060.00316.28
7.4.40.0110.01116.14
7.4.30.0180.00316.53
7.4.00.0060.00914.81
7.3.330.0030.00312.97
7.3.320.0000.00613.00
7.3.310.0000.00716.08
7.3.300.0000.00616.04
7.3.290.0050.01016.14
7.3.280.0040.01016.15
7.3.270.0100.01017.40
7.3.260.0100.00716.50
7.3.250.0090.01216.10
7.3.240.0100.01016.15
7.3.230.0090.01016.43
7.3.210.0050.01116.25
7.3.200.0100.01019.39
7.3.190.0090.00916.13
7.3.180.0080.01216.29
7.3.170.0060.01216.42
7.3.160.0060.00916.23
7.3.120.0030.01414.52
7.3.110.0040.01114.91
7.3.100.0060.00914.61
7.3.90.0060.00314.68
7.3.80.0040.00814.77
7.3.70.0060.00314.68
7.3.60.0040.00814.56
7.3.50.0000.01414.55
7.3.40.0130.00314.85
7.3.30.0070.00714.65
7.3.20.0060.00616.41
7.3.10.0060.00616.58
7.3.00.0050.00716.43
7.2.330.0140.00316.48
7.2.320.0150.00316.34
7.2.310.0090.00916.41
7.2.300.0080.00916.42
7.2.290.0190.00316.56
7.2.250.0150.00014.74
7.2.240.0000.02015.02
7.2.230.0080.00814.73
7.2.220.0060.00914.70
7.2.210.0060.00615.00
7.2.200.0080.00814.80
7.2.190.0030.00914.67
7.2.180.0080.00614.64
7.2.170.0070.00714.57
7.2.130.0040.00416.66
7.2.120.0030.01016.63
7.2.110.0070.00716.51
7.2.100.0100.00316.60
7.2.90.0030.00916.73
7.2.80.0030.00716.81
7.2.70.0040.00416.90
7.2.60.0020.01216.60
7.2.50.0000.01416.33
7.2.40.0000.00916.39
7.2.30.0030.01016.88
7.2.20.0000.00916.43
7.2.10.0060.00916.81
7.2.00.0060.00618.01
7.1.330.0030.01315.50
7.1.320.0000.00915.36
7.1.310.0120.00315.56
7.1.300.0110.00415.41
7.1.290.0030.01015.55
7.1.280.0090.00615.66
7.1.270.0100.00315.82
7.1.260.0030.01015.39
7.1.250.0050.00215.46
7.1.200.0030.00315.77
7.1.100.0040.01117.89
7.1.70.0000.00816.73
7.1.60.0030.02019.34
7.1.50.0090.01516.76
7.1.00.0030.07322.30
7.0.200.0000.01016.74
7.0.140.0000.07722.09
7.0.60.0130.06019.82
7.0.50.0130.07017.80
7.0.40.0170.08020.12
7.0.30.0530.07320.13
7.0.20.0370.06020.19
7.0.10.0070.09020.33
7.0.00.0030.08320.30
5.6.280.0000.07321.03
5.6.210.0170.07720.64
5.6.200.0030.05718.23
5.6.190.0030.04320.37
5.6.180.0600.06020.62
5.6.170.0230.07720.62
5.6.160.0130.08320.41
5.6.150.0030.04018.18
5.6.140.0030.04318.14
5.6.130.0030.09018.13
5.6.120.0130.07720.87
5.6.110.0030.09321.00
5.6.100.0070.04021.00
5.6.90.0100.03320.96
5.6.80.0130.07020.39
5.5.350.0300.06320.32
5.5.340.0100.07717.91
5.5.330.0030.09020.42
5.5.320.0300.08020.29
5.5.310.0270.07720.41
5.5.300.0100.03317.98
5.5.290.0170.06017.87
5.5.280.0030.04020.89
5.5.270.0170.03720.63
5.5.260.0070.04020.76
5.5.250.0070.03720.70
5.5.240.0270.06320.13
5.4.450.0100.04019.41
5.4.440.0070.04019.56
5.4.430.0130.04019.54
5.4.420.0030.06019.52
5.4.410.0030.06019.41
5.4.400.0170.05319.17
5.4.390.0230.04719.16
5.4.380.0100.05719.16
5.4.370.0100.06719.15
5.4.360.0130.05018.96
5.4.350.0080.03411.97
5.4.340.0090.03711.97
5.4.320.0080.04412.46
5.4.310.0060.04312.45
5.4.300.0110.03512.45
5.4.290.0060.04012.45
5.4.280.0050.03612.35
5.4.270.0050.03912.35
5.4.260.0060.03812.35
5.4.250.0070.03712.35
5.4.240.0060.04112.35
5.4.230.0100.04312.34
5.4.220.0100.03612.34
5.4.210.0060.03712.34
5.4.200.0070.03812.34
5.4.190.0050.04412.34
5.4.180.0040.03912.34
5.4.170.0040.03712.35
5.4.160.0040.03812.35
5.4.150.0050.03812.34
5.4.140.0090.04012.02
5.4.130.0090.04712.02
5.4.120.0120.04711.97
5.4.110.0010.04711.96
5.4.100.0060.04711.96
5.4.90.0030.05011.96
5.4.80.0100.04011.97
5.4.70.0120.04211.96
5.4.60.0050.04111.96
5.4.50.0070.03811.97
5.4.40.0090.03611.95
5.4.30.0100.03111.95
5.4.20.0070.04111.95
5.4.10.0100.03411.95
5.4.00.0080.03711.44
5.3.290.0060.04712.80
5.3.280.0080.04712.71
5.3.270.0060.04912.72
5.3.260.0060.04212.72
5.3.250.0100.03612.72
5.3.240.0060.04212.72
5.3.230.0100.04112.71
5.3.220.0090.04412.68
5.3.210.0070.04712.68
5.3.200.0070.04012.68
5.3.190.0080.03912.68
5.3.180.0040.05312.67
5.3.170.0050.04912.67
5.3.160.0050.03812.68
5.3.150.0060.03712.67
5.3.140.0060.03812.66
5.3.130.0100.03712.66
5.3.120.0060.04212.66
5.3.110.0070.04312.66
5.3.100.0080.03812.12
5.3.90.0060.04112.08
5.3.80.0060.04512.08
5.3.70.0060.03712.08
5.3.60.0090.03812.06
5.3.50.0090.03812.00
5.3.40.0050.04012.00
5.3.30.0080.04611.94
5.3.20.0090.03711.73
5.3.10.0060.03811.69
5.3.00.0040.03811.68
5.2.170.0060.0309.18
5.2.160.0030.0319.18
5.2.150.0070.0289.18
5.2.140.0050.0339.17
5.2.130.0040.0309.14
5.2.120.0080.0259.13
5.2.110.0040.0339.14
5.2.100.0060.0319.14
5.2.90.0050.0289.13
5.2.80.0050.0299.13
5.2.70.0080.0299.13
5.2.60.0040.0319.08
5.2.50.0080.0429.05
5.2.40.0060.0389.03
5.2.30.0060.0399.01
5.2.20.0040.0308.99
5.2.10.0050.0298.92
5.2.00.0070.0278.78
5.1.60.0050.0268.06
5.1.50.0080.0248.06
5.1.40.0070.0368.04
5.1.30.0050.0278.39
5.1.20.0050.0298.42
5.1.10.0040.0278.14
5.1.00.0030.0308.14
5.0.50.0020.0226.62
5.0.40.0040.0216.47
5.0.30.0050.0316.29
5.0.20.0090.0256.25
5.0.10.0070.0316.23
5.0.00.0050.0376.23
4.4.90.0040.0184.78
4.4.80.0020.0184.75
4.4.70.0040.0254.75
4.4.60.0100.0384.75
4.4.50.0030.0224.77
4.4.40.0070.0314.71
4.4.30.0020.0204.76
4.4.20.0030.0164.84
4.4.10.0030.0164.85
4.4.00.0030.0254.76
4.3.110.0030.0184.67
4.3.100.0020.0164.66
4.3.90.0020.0164.63
4.3.80.0040.0234.58
4.3.70.0040.0154.63
4.3.60.0040.0134.63
4.3.50.0040.0144.63
4.3.40.0030.0254.54
4.3.30.0030.0183.28
4.3.20.0010.0193.25
4.3.10.0020.0183.22
4.3.00.0030.02013.23

preferences:
51.89 ms | 401 KiB | 5 Q