3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(json_decode('{ "\u0000 key starting with zero": "value" }', true));

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)
8.3.60.0040.01118.30
8.3.50.0100.00521.87
8.3.40.0120.00618.71
8.3.30.0070.01419.09
8.3.20.0040.00420.20
8.3.10.0080.00022.05
8.3.00.0040.00422.45
8.2.180.0080.00816.50
8.2.170.0120.00322.96
8.2.160.0130.00720.57
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0080.00019.13
8.2.110.0090.00022.16
8.2.100.0120.00019.45
8.2.90.0000.00719.09
8.2.80.0040.00417.97
8.2.70.0030.00617.38
8.2.60.0040.00417.80
8.2.50.0040.00418.07
8.2.40.0040.00418.09
8.2.30.0000.00717.93
8.2.20.0070.00017.53
8.2.10.0040.00419.26
8.2.00.0050.00217.61
8.1.280.0150.00625.92
8.1.270.0080.00022.14
8.1.260.0040.00426.35
8.1.250.0000.00928.09
8.1.240.0030.00624.01
8.1.230.0060.00618.99
8.1.220.0000.00717.74
8.1.210.0040.00418.77
8.1.200.0030.00717.22
8.1.190.0050.00317.05
8.1.180.0030.00618.54
8.1.170.0080.00018.50
8.1.160.0040.00421.82
8.1.150.0040.00418.57
8.1.140.0000.00717.20
8.1.130.0030.00317.72
8.1.120.0070.00017.26
8.1.110.0080.00017.19
8.1.100.0040.00417.32
8.1.90.0000.00717.31
8.1.80.0000.00817.23
8.1.70.0030.00317.25
8.1.60.0000.00817.49
8.1.50.0040.00417.44
8.1.40.0000.00717.42
8.1.30.0000.00817.42
8.1.20.0000.00817.59
8.1.10.0000.00717.30
8.1.00.0040.00417.31
8.0.300.0040.00418.77
8.0.290.0000.00817.18
8.0.280.0070.00018.28
8.0.270.0030.00517.05
8.0.260.0050.00316.74
8.0.250.0030.00316.74
8.0.240.0050.00316.71
8.0.230.0040.00416.84
8.0.220.0030.00316.77
8.0.210.0070.00016.71
8.0.200.0030.00316.84
8.0.190.0070.00316.80
8.0.180.0040.00416.81
8.0.170.0050.00216.69
8.0.160.0040.00416.81
8.0.150.0000.00816.67
8.0.140.0040.00416.63
8.0.130.0000.00613.18
8.0.120.0040.00416.78
8.0.110.0040.00416.68
8.0.100.0000.00816.56
8.0.90.0000.00716.67
8.0.80.0110.00416.80
8.0.70.0040.00416.83
8.0.60.0000.00816.75
8.0.50.0040.00416.75
8.0.30.0140.00516.73
8.0.20.0080.01117.40
8.0.10.0030.00516.77
8.0.00.0090.01116.63
7.4.330.0030.00315.07
7.4.320.0030.00316.37
7.4.300.0000.00616.40
7.4.290.0030.00316.46
7.4.280.0000.00716.27
7.4.270.0030.00316.37
7.4.260.0000.00716.39
7.4.250.0000.00816.36
7.4.240.0050.00216.48
7.4.230.0030.00316.39
7.4.220.0090.00916.38
7.4.210.0070.00916.45
7.4.200.0000.00716.22
7.4.190.0000.00716.57
7.4.160.0070.01016.37
7.4.150.0110.01517.40
7.4.140.0070.01217.86
7.4.130.0060.01116.35
7.4.120.0080.00816.38
7.4.110.0000.01716.34
7.4.100.0110.00516.33
7.4.90.0110.00716.41
7.4.80.0090.01219.39
7.4.70.0040.01216.36
7.4.60.0100.00716.54
7.4.50.0040.00016.25
7.4.40.0030.00922.77
7.4.30.0070.01016.36
7.4.00.0070.00714.55
7.3.330.0030.00313.03
7.3.320.0000.00512.88
7.3.310.0000.00715.98
7.3.300.0040.00416.12
7.3.290.0040.01216.17
7.3.280.0120.00516.10
7.3.270.0120.00617.40
7.3.260.0070.01016.44
7.3.250.0110.00816.26
7.3.240.0110.01116.16
7.3.230.0100.00616.39
7.3.210.0130.00316.42
7.3.200.0140.00319.39
7.3.190.0130.01016.18
7.3.180.0030.01716.31
7.3.170.0110.00616.27
7.3.160.0030.01616.30
7.3.120.0030.00914.70
7.2.330.0080.01216.20
7.2.320.0090.00916.57
7.2.310.0130.00716.41
7.2.300.0130.00316.48
7.2.290.0150.00916.17
7.1.70.0040.01116.91
7.1.60.0180.00719.82
7.1.50.0130.01016.71
7.1.00.0030.07722.36
7.0.200.0040.00416.43
7.0.140.0170.06021.98
7.0.60.0030.09019.91
7.0.50.0200.06317.82
7.0.40.0100.08019.96
7.0.30.0300.04720.17
7.0.20.0200.03720.21
7.0.10.0030.07319.99
7.0.00.0100.04320.13
5.6.280.0000.07721.10
5.6.210.0100.07720.72
5.6.200.0100.08318.22
5.6.190.0030.04720.77
5.6.180.3430.04720.43
5.6.170.0300.07720.52
5.6.160.0030.04020.44
5.6.150.0030.04318.11
5.6.140.0100.08018.11
5.6.130.0100.06718.11
5.6.120.0070.06020.89
5.6.110.0100.05020.99
5.6.100.0100.07721.09
5.6.90.0070.08720.99
5.6.80.0100.07720.36
5.6.70.0270.06720.43
5.5.350.0370.06320.29
5.5.340.0070.03717.88
5.5.330.0130.06720.20
5.5.320.0200.05020.31
5.5.310.0330.08020.17
5.5.300.0000.04317.91
5.5.290.0070.08017.98
5.5.280.0100.03720.86
5.5.270.0100.07720.75
5.5.260.0030.08720.78
5.5.250.0100.07020.56
5.5.240.0300.06020.13
5.4.450.1100.06319.14
5.4.440.1030.06719.63
5.4.430.0900.05319.54
5.4.420.0570.05719.10
5.4.410.1130.03719.19
5.4.400.1100.05019.00
5.4.390.0900.07318.95
5.4.380.0430.05318.68
5.4.370.0070.04318.65
5.4.360.0000.04318.75
5.4.350.0050.03511.97
5.4.340.0090.03411.96
5.4.320.0050.03712.46
5.4.310.0090.05512.45
5.4.300.0090.03412.45
5.4.290.0090.03912.45
5.4.280.0100.03512.34
5.4.270.0040.03712.35
5.4.260.0070.06718.84
5.4.250.0100.05018.85
5.4.240.0000.08318.69
5.4.230.0200.06318.68
5.4.220.0030.06718.71
5.4.210.0100.08018.85
5.4.200.0170.06318.70
5.4.190.0070.06018.83
5.4.180.0130.05318.84
5.4.170.0030.05718.76
5.4.160.0130.08018.82
5.4.150.0070.08018.79
5.4.140.0130.05016.41
5.4.130.0070.05016.29
5.4.120.0100.07316.48
5.4.110.0170.04016.41
5.4.100.0070.06316.36
5.4.90.0130.06016.37
5.4.80.0070.05716.39
5.4.70.0130.04316.36
5.4.60.0100.05316.19
5.4.50.0030.05016.46
5.4.40.0100.05016.33
5.4.30.0170.05316.34
5.4.20.0100.05016.28
5.4.10.0200.04016.28
5.4.00.0130.04715.90
5.3.290.0040.04112.80
5.3.280.0130.06714.59
5.3.270.0170.06014.48
5.3.260.0030.06314.30
5.3.250.0100.05314.52
5.3.240.0070.07714.45
5.3.230.0070.05714.29
5.3.220.0070.05314.66
5.3.210.0200.04714.57
5.3.200.0100.07314.58
5.3.190.0100.05014.59
5.3.180.0170.05714.34
5.3.170.0070.05714.46
5.3.160.0100.04714.40
5.3.150.0000.05714.57
5.3.140.0100.06314.64
5.3.130.0070.06014.38
5.3.120.0070.05014.70
5.3.110.0070.06314.70
5.3.100.0100.06313.81
5.3.90.0000.06013.90
5.3.80.0170.05014.03
5.3.70.0170.04013.85
5.3.60.0170.04013.95
5.3.50.0070.04713.81
5.3.40.0130.06013.64
5.3.30.0030.05713.84
5.3.20.0170.06713.38
5.3.10.0100.04313.65
5.3.00.0000.05313.58
5.2.170.0100.06011.07
5.2.160.0100.03711.07
5.2.150.0070.04311.07
5.2.140.0170.05711.04
5.2.130.0000.06010.86
5.2.120.0070.05311.10
5.2.110.0000.04711.10
5.2.100.0030.05311.02
5.2.90.0030.05711.01
5.2.80.0000.04711.19
5.2.70.0030.04311.02
5.2.60.0070.03710.89
5.2.50.0170.02711.13
5.2.40.0070.05010.92
5.2.30.0130.03710.88
5.2.20.0070.03710.96
5.2.10.0030.05310.93
5.2.00.0130.03310.86
5.1.60.0030.0379.95
5.1.50.0130.0279.92
5.1.40.0070.0339.91
5.1.30.0000.05710.24
5.1.20.0130.04010.43
5.1.10.0100.04310.12
5.1.00.0030.03710.29
5.0.50.0000.0308.41
5.0.40.0000.0438.43
5.0.30.0000.0478.23
5.0.20.0000.0338.10
5.0.10.0030.0308.31
5.0.00.0030.0408.15
4.4.90.0100.0236.10
4.4.80.0030.0306.10
4.4.70.0000.0336.10
4.4.60.0000.0236.10
4.4.50.0070.0206.10
4.4.40.0000.0376.10
4.4.30.0070.0276.10
4.4.20.0100.0206.10
4.4.10.0030.0306.10
4.4.00.0030.0336.10
4.3.110.0000.0236.10
4.3.100.0000.0306.10
4.3.90.0100.0236.10
4.3.80.0100.0376.10
4.3.70.0000.0336.10
4.3.60.0030.0206.10
4.3.50.0000.0236.10
4.3.40.0000.0376.10
4.3.30.0030.0206.10
4.3.20.0000.0236.10
4.3.10.0030.0206.10
4.3.00.0070.0336.98

preferences:
34.81 ms | 401 KiB | 5 Q