3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(json_decode("", true, 512, 0)); var_dump(json_last_error());

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)
8.3.60.0040.01118.18
8.3.50.0100.01021.83
8.3.40.0120.00318.58
8.3.30.0160.00618.37
8.3.20.0040.00420.25
8.3.10.0050.00320.41
8.3.00.0000.00723.48
8.2.180.0150.00018.41
8.2.170.0150.00022.96
8.2.160.0110.00722.16
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0080.00019.39
8.2.120.0040.00426.35
8.2.110.0050.00519.40
8.2.100.0120.00017.91
8.2.90.0000.00819.09
8.2.80.0030.00617.97
8.2.70.0110.00017.50
8.2.60.0040.00417.55
8.2.50.0040.00418.09
8.2.40.0040.00420.53
8.2.30.0040.00419.36
8.2.20.0070.00017.43
8.2.10.0040.00417.81
8.2.00.0000.00817.89
8.1.280.0070.00725.92
8.1.270.0160.00321.98
8.1.260.0070.00028.09
8.1.250.0040.00428.09
8.1.240.0090.00022.46
8.1.230.0060.00617.64
8.1.220.0030.00617.74
8.1.210.0080.00018.77
8.1.200.0030.00617.23
8.1.190.0000.00817.10
8.1.180.0000.00718.10
8.1.170.0040.00418.56
8.1.160.0070.00020.54
8.1.150.0000.00818.73
8.1.140.0030.00519.45
8.1.130.0050.00517.46
8.1.120.0070.00017.32
8.1.110.0040.00417.27
8.1.100.0070.00017.31
8.1.90.0040.00417.39
8.1.80.0050.00217.32
8.1.70.0030.00317.34
8.1.60.0080.00017.41
8.1.50.0080.00017.35
8.1.40.0090.00017.36
8.1.30.0040.00417.41
8.1.20.0040.00417.29
8.1.10.0040.00417.34
8.1.00.0080.00017.34
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0070.00018.30
8.0.270.0000.00717.05
8.0.260.0040.00417.11
8.0.250.0070.00016.78
8.0.240.0030.00316.73
8.0.230.0000.00816.80
8.0.220.0030.00316.76
8.0.210.0020.00516.73
8.0.200.0000.00716.83
8.0.190.0040.00416.83
8.0.180.0040.00416.73
8.0.170.0070.00016.77
8.0.160.0070.00016.80
8.0.150.0040.00416.72
8.0.140.0040.00416.71
8.0.130.0030.00313.16
8.0.120.0030.00516.77
8.0.110.0000.00816.76
8.0.100.0040.00416.58
8.0.90.0070.00016.61
8.0.80.0070.00716.79
8.0.70.0000.00816.50
8.0.60.0040.00416.71
8.0.50.0040.00416.72
8.0.30.0110.00817.12
8.0.20.0140.01117.40
8.0.10.0050.00216.98
8.0.00.0080.00916.61
7.4.330.0050.00016.85
7.4.320.0030.00316.46
7.4.300.0030.00316.35
7.4.290.0000.00716.38
7.4.280.0050.00316.44
7.4.270.0000.00716.50
7.4.260.0000.00716.43
7.4.250.0060.00316.42
7.4.240.0000.00716.41
7.4.230.0000.00716.46
7.4.220.0100.01616.55
7.4.210.0060.00716.41
7.4.200.0070.00016.25
7.4.160.0110.00416.29
7.4.150.0070.01417.40
7.4.140.0120.00817.86
7.4.130.0090.00816.38
7.4.120.0160.00216.41
7.4.110.0070.01116.17
7.4.100.0100.01016.39
7.4.90.0090.01516.40
7.4.80.0080.01119.39
7.4.70.0120.00416.43
7.4.60.0050.01116.29
7.4.50.0100.00616.42
7.4.40.0070.01116.10
7.4.30.0090.00916.16
7.4.00.0000.01314.66
7.3.330.0000.00512.86
7.3.320.0030.00313.06
7.3.310.0030.00316.06
7.3.300.0040.00415.98
7.3.290.0100.00716.11
7.3.280.0120.00716.14
7.3.270.0090.00917.40
7.3.260.0130.00316.30
7.3.250.0100.01016.20
7.3.240.0100.00716.13
7.3.230.0090.00916.39
7.3.210.0030.01316.16
7.3.200.0030.01216.36
7.3.190.0060.01016.27
7.3.180.0080.00916.22
7.3.170.0070.01016.20
7.3.160.0100.00716.08
7.2.330.0100.01016.48
7.2.320.0080.00816.35
7.2.310.0030.01316.45
7.2.300.0090.00916.58
7.2.290.0060.01116.46
7.2.60.0060.00916.69
7.2.00.0040.01419.17
7.1.200.0030.00915.55
7.1.100.0070.00718.04
7.1.70.0040.00817.11
7.1.60.0030.01719.19
7.1.50.0030.01716.95
7.1.00.0070.07322.28
7.0.200.0800.00314.32
7.0.100.0030.08020.02
7.0.90.0200.06020.01
7.0.80.0000.06019.86
7.0.70.0170.07319.97
7.0.60.0200.07719.95
7.0.50.0070.08720.15
7.0.40.0070.08720.09
7.0.30.0070.08320.05
7.0.20.0130.07720.06
7.0.10.0030.06320.09
7.0.00.0070.07020.07
5.6.250.0070.06020.68
5.6.240.0030.08020.68
5.6.230.0130.04020.58
5.6.220.0070.04720.56
5.6.210.0070.07720.67
5.6.200.0030.08720.93
5.6.190.0070.09020.93
5.6.180.0230.04721.05
5.6.170.0030.05021.02
5.6.160.0070.08721.11
5.6.150.0130.08321.03
5.6.140.0170.04721.11
5.6.130.0030.07321.00
5.6.120.0100.06021.06
5.6.110.0170.07021.00
5.6.100.0100.05020.91
5.6.90.0130.08021.14
5.6.80.0030.05320.41
5.6.70.0070.08320.41
5.6.60.0100.07720.48
5.6.50.0070.05720.38
5.6.40.0130.07320.46
5.6.30.0100.07320.36
5.6.20.0070.06020.30
5.6.10.0130.06720.38
5.6.00.0000.04720.34
5.5.380.0100.07320.44
5.5.370.0100.07320.34
5.5.360.0030.08720.37
5.5.350.0130.08020.38
5.5.340.0100.05720.89
5.5.330.0130.07020.75
5.5.320.0170.07020.82
5.5.310.0070.04720.88
5.5.300.0000.07020.77
5.5.290.0000.08720.72
5.5.280.0000.04720.78
5.5.270.0030.08020.61
5.5.260.0030.08320.86
5.5.250.0000.08320.68
5.5.240.0070.08320.23
5.5.230.0170.07020.13
5.5.220.0070.07720.23
5.5.210.0170.09720.27
5.5.200.0070.08320.23
5.5.190.0100.07020.09
5.5.180.0200.04720.11
5.5.160.0100.06020.10
5.5.150.0070.08020.16
5.5.140.0130.07020.27
5.5.130.0070.07320.24
5.5.120.0130.07020.16
5.5.110.0100.06020.16
5.5.100.0100.05020.09
5.5.90.0000.05720.16
5.5.80.0070.08020.09
5.5.70.0270.04720.09
5.5.60.0070.07720.05
5.5.50.0200.06320.04
5.5.40.0200.06319.99
5.5.30.0070.07020.03
5.5.20.0070.07020.14
5.5.10.0030.08720.10
5.5.00.0100.08020.05

preferences:
53.7 ms | 401 KiB | 5 Q