3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(json_decode('1 ', true)); var_dump(json_last_error()); var_dump(json_decode('', true)); var_dump(json_last_error()); var_dump(json_decode('1', true)); var_dump(json_last_error()); var_dump(json_decode('b', true)); 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)
8.3.40.0110.00318.59
8.3.30.0130.00318.91
8.3.20.0070.00020.30
8.3.10.0050.00323.61
8.3.00.0040.00418.93
8.2.170.0120.00322.96
8.2.160.0100.00320.44
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0050.00226.16
8.2.120.0080.00020.72
8.2.110.0090.00022.16
8.2.100.0030.00817.66
8.2.90.0040.00419.05
8.2.80.0030.00517.97
8.2.70.0090.00017.25
8.2.60.0080.00317.91
8.2.50.0040.00418.07
8.2.40.0050.00319.76
8.2.30.0050.00318.10
8.2.20.0060.00317.43
8.2.10.0000.00817.97
8.2.00.0040.00417.50
8.1.270.0040.00423.92
8.1.260.0070.00026.35
8.1.250.0080.00028.09
8.1.240.0060.00323.84
8.1.230.0070.00718.77
8.1.220.0050.00317.74
8.1.210.0030.00518.77
8.1.200.0060.00317.23
8.1.190.0030.00517.10
8.1.180.0000.00818.10
8.1.170.0080.00018.64
8.1.160.0050.00221.94
8.1.150.0000.00818.46
8.1.140.0000.00717.27
8.1.130.0070.00017.70
8.1.120.0030.00317.16
8.1.110.0070.00017.30
8.1.100.0000.00717.38
8.1.90.0080.00017.19
8.1.80.0000.00817.30
8.1.70.0000.00817.26
8.1.60.0050.00317.49
8.1.50.0060.00317.37
8.1.40.0040.00417.36
8.1.30.0120.00017.57
8.1.20.0040.00417.48
8.1.10.0000.00817.42
8.1.00.0000.00717.24
8.0.300.0070.00018.77
8.0.290.0030.00717.03
8.0.280.0000.00718.18
8.0.270.0030.00317.13
8.0.260.0060.00017.12
8.0.250.0060.00016.79
8.0.240.0070.00016.77
8.0.230.0040.00416.81
8.0.220.0040.00416.81
8.0.210.0000.00816.61
8.0.200.0060.00016.73
8.0.190.0040.00416.82
8.0.180.0000.00716.75
8.0.170.0070.00016.77
8.0.160.0040.00416.61
8.0.150.0000.00816.71
8.0.140.0030.00416.64
8.0.130.0050.00013.12
8.0.120.0050.00316.69
8.0.110.0070.00016.60
8.0.100.0000.00716.71
8.0.90.0040.00416.59
8.0.80.0120.00316.69
8.0.70.0000.00716.80
8.0.60.0000.00716.73
8.0.50.0040.00416.77
8.0.30.0120.00616.82
8.0.20.0140.00617.40
8.0.10.0040.00416.88
8.0.00.0100.00816.55
7.4.330.0000.00715.00
7.4.320.0060.00016.45
7.4.300.0030.00316.35
7.4.290.0030.00316.46
7.4.280.0070.00016.45
7.4.270.0080.00016.39
7.4.260.0040.00416.27
7.4.250.0000.00716.30
7.4.240.0030.00416.36
7.4.230.0030.00316.35
7.4.220.0120.00616.49
7.4.210.0060.00916.33
7.4.200.0000.00716.46
7.4.190.0000.00716.54
7.4.160.0110.00816.42
7.4.150.0120.00617.40
7.4.140.0160.01417.86
7.4.130.0100.01016.31
7.4.120.0110.00816.44
7.4.110.0110.00716.36
7.4.100.0090.00916.43
7.4.90.0100.00616.14
7.4.80.0090.01419.39
7.4.70.0040.01216.30
7.4.60.0170.00016.31
7.4.50.0060.00016.23
7.4.40.0130.00316.49
7.4.30.0080.00816.33
7.4.00.0100.00714.66
7.3.330.0000.00513.06
7.3.320.0020.00213.02
7.3.310.0000.00716.00
7.3.300.0000.00616.03
7.3.290.0060.00916.07
7.3.280.0090.00816.11
7.3.270.0130.00417.40
7.3.260.0030.01916.40
7.3.250.0100.01116.30
7.3.240.0170.00316.43
7.3.230.0130.00916.39
7.3.210.0120.00616.15
7.3.200.0130.00919.39
7.3.190.0130.00316.38
7.3.180.0060.00916.18
7.3.170.0030.01316.44
7.3.160.0070.01016.45
7.3.120.0060.00914.62
7.2.330.0040.01316.27
7.2.320.0060.01516.57
7.2.310.0180.00316.34
7.2.300.0080.01516.57
7.2.290.0090.00916.29
7.2.60.0030.01216.53
7.2.00.0060.00619.12
7.1.200.0030.00715.44
7.1.100.0160.00317.99
7.1.70.0060.00616.94
7.1.60.0100.01019.46
7.1.50.0070.01416.53
7.1.00.0100.07022.33
7.0.200.0040.00416.31
7.0.140.0100.06322.18
7.0.60.0070.07319.95
7.0.50.0070.06717.91
7.0.40.0070.04320.06
7.0.30.0330.07720.17
7.0.20.0370.06720.01
7.0.10.0170.08020.17
7.0.00.0070.08320.05
5.6.280.0030.07320.90
5.6.210.0130.07020.62
5.6.200.0070.07718.09
5.6.190.0000.04320.45
5.6.180.0230.04720.43
5.6.170.0230.04320.51
5.6.160.0070.08720.48
5.6.150.0000.04318.12
5.6.140.0100.07718.14
5.6.130.0100.05018.20
5.6.120.0070.03720.98
5.6.110.0100.06320.89
5.6.100.0030.04321.00
5.6.90.0070.08721.12
5.6.80.0070.06320.52
5.5.350.0100.07720.43
5.5.340.0130.06018.02
5.5.330.0130.08320.46
5.5.320.0370.07320.30
5.5.310.0100.04720.32
5.5.300.0070.04717.89
5.5.290.0000.05018.02
5.5.280.0030.05720.73
5.5.270.0030.05720.64
5.5.260.0100.08320.79
5.5.250.0170.07320.58
5.5.240.0000.08320.12
5.4.450.1300.03719.46
5.4.440.0470.03719.26
5.4.430.1100.04319.41
5.4.420.1170.03319.48
5.4.410.0570.03019.33
5.4.400.1200.03319.22
5.4.390.0900.03718.93
5.4.380.0430.08318.54
5.4.370.0330.04718.69
5.4.360.0500.07018.78
5.4.350.0430.05318.52
5.4.340.0430.05018.56
5.4.320.0070.04212.46
5.4.310.0070.04412.45
5.4.300.0070.04512.46
5.4.290.0100.03412.45
5.4.280.0070.03712.35
5.4.270.0050.03912.35
5.4.260.0060.04012.35
5.4.250.0080.04812.35
5.4.240.0120.04412.35
5.4.230.0100.04212.34
5.4.220.0090.03812.34
5.4.210.0080.04112.34
5.4.200.0030.04212.34
5.4.190.0050.04012.34
5.4.180.0120.06012.34
5.4.170.0060.03912.35
5.4.160.0050.04112.35
5.4.150.0060.04312.34
5.4.140.0080.03712.03
5.4.130.0020.04112.01
5.4.120.0060.05411.97
5.4.110.0090.04911.96
5.4.100.0090.03711.96
5.4.90.0060.03711.96
5.4.80.0080.04811.96
5.4.70.0070.03511.96
5.4.60.0060.03511.96
5.4.50.0060.03611.96
5.4.40.0060.03511.95
5.4.30.0050.03711.95
5.4.20.0030.03911.95
5.4.10.0080.04311.95
5.4.00.0120.04811.44
5.3.290.0080.03712.80
5.3.280.0110.04812.71
5.3.270.0090.05412.72
5.3.260.0100.05312.72
5.3.250.0110.05912.72
5.3.240.0090.05112.72
5.3.230.0090.05612.71
5.3.220.0110.05812.68
5.3.210.0090.04212.68
5.3.200.0040.04412.68
5.3.190.0070.04512.68
5.3.180.0070.03712.67
5.3.170.0060.03612.67
5.3.160.0080.04012.68
5.3.150.0030.04712.68
5.3.140.0070.04212.66
5.3.130.0020.04412.66
5.3.120.0060.04112.65
5.3.110.0110.03612.66
5.3.100.0040.04112.12
5.3.90.0040.03912.08
5.3.80.0060.03712.07
5.3.70.0050.03812.07
5.3.60.0050.04612.06
5.3.50.0050.03712.00
5.3.40.0090.03412.00
5.3.30.0070.04211.95
5.3.20.0090.03211.72
5.3.10.0050.03511.69
5.3.00.0030.03811.68
5.2.170.0050.0309.18
5.2.160.0060.0279.18
5.2.150.0060.0299.18
5.2.140.0060.0339.18
5.2.130.0050.0319.14
5.2.120.0070.0279.14
5.2.110.0020.0329.15
5.2.100.0040.0309.14
5.2.90.0030.0359.14
5.2.80.0010.0399.14
5.2.70.0030.0339.14
5.2.60.0050.0319.09
5.2.50.0070.0309.06
5.2.40.0040.0319.04
5.2.30.0050.0329.01
5.2.20.0050.0299.00
5.2.10.0080.0298.92
5.2.00.0060.0288.78
5.1.60.0050.0248.07
5.1.50.0040.0268.06
5.1.40.0050.0258.05
5.1.30.0050.0258.40
5.1.20.0050.0258.41
5.1.10.0050.0258.14
5.1.00.0070.0248.14
5.0.50.0060.0196.62
5.0.40.0010.0266.48
5.0.30.0040.0456.29
5.0.20.0040.0326.27
5.0.10.0040.0306.24
5.0.00.0060.0406.23
4.4.90.0030.0224.78
4.4.80.0040.0224.75
4.4.70.0070.0184.76
4.4.60.0020.0254.75
4.4.50.0080.0304.77
4.4.40.0040.0374.71
4.4.30.0040.0224.76
4.4.20.0050.0224.84
4.4.10.0040.0234.85
4.4.00.0040.0334.76
4.3.110.0060.0214.67
4.3.100.0060.0204.66
4.3.90.0040.0224.64
4.3.80.0050.0344.58
4.3.70.0050.0204.63
4.3.60.0050.0204.63
4.3.50.0060.0204.63
4.3.40.0060.0314.54
4.3.30.0030.0223.28
4.3.20.0020.0233.26
4.3.10.0030.0203.22
4.3.00.0070.03016.15

preferences:
39.56 ms | 400 KiB | 5 Q