3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(json_encode("\xB1\x31")); echo 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)
8.3.60.0100.01018.55
8.3.50.0100.01021.94
8.3.40.0170.00318.84
8.3.30.0120.00418.59
8.3.20.0040.00418.70
8.3.10.0040.00420.86
8.3.00.0070.00023.59
8.2.180.0110.00418.18
8.2.170.0100.01022.96
8.2.160.0100.00320.38
8.2.150.0080.00024.18
8.2.140.0030.00524.66
8.2.130.0040.00426.16
8.2.120.0040.00419.66
8.2.110.0060.00320.39
8.2.100.0070.00317.78
8.2.90.0040.00419.08
8.2.80.0030.00617.97
8.2.70.0070.00417.49
8.2.60.0040.00417.80
8.2.50.0090.00018.07
8.2.40.0050.00218.09
8.2.30.0050.00221.10
8.2.20.0050.00317.63
8.2.10.0040.00417.61
8.2.00.0040.00417.57
8.1.280.0000.01425.92
8.1.270.0090.00023.99
8.1.260.0050.00326.35
8.1.250.0030.00528.09
8.1.240.0030.00622.43
8.1.230.0040.00720.89
8.1.220.0040.00418.77
8.1.210.0100.00318.77
8.1.200.0030.00617.23
8.1.190.0040.00417.41
8.1.180.0040.00418.10
8.1.170.0080.00018.45
8.1.160.0020.00518.75
8.1.150.0030.00518.41
8.1.140.0040.00417.32
8.1.130.0000.00717.73
8.1.120.0040.00417.33
8.1.110.0040.00417.36
8.1.100.0000.00717.36
8.1.90.0080.00017.28
8.1.80.0080.00017.35
8.1.70.0000.00717.29
8.1.60.0040.00417.36
8.1.50.0070.00017.33
8.1.40.0040.00417.38
8.1.30.0040.00417.47
8.1.20.0000.00817.41
8.1.10.0070.00017.40
8.1.00.0060.00317.34
8.0.300.0020.00519.79
8.0.290.0000.00717.18
8.0.280.0070.00018.24
8.0.270.0080.00317.10
8.0.260.0070.00016.74
8.0.250.0020.00516.80
8.0.240.0050.00516.79
8.0.230.0030.00316.83
8.0.220.0000.00816.80
8.0.210.0030.00516.74
8.0.200.0000.00716.72
8.0.190.0030.00316.71
8.0.180.0000.00716.66
8.0.170.0040.00416.75
8.0.160.0000.00816.88
8.0.150.0070.00016.73
8.0.140.0000.00816.71
8.0.130.0000.00513.19
8.0.120.0080.00016.61
8.0.110.0040.00416.78
8.0.100.0040.00416.76
8.0.90.0000.00716.62
8.0.80.0070.00716.66
8.0.70.0040.00416.74
8.0.60.0040.00416.75
8.0.50.0070.00016.86
8.0.30.0070.01117.00
8.0.20.0140.00517.40
8.0.10.0040.00416.88
8.0.00.0090.00816.77
7.4.330.0050.00014.61
7.4.320.0000.00616.50
7.4.300.0040.00416.34
7.4.290.0000.00716.50
7.4.280.0030.00316.48
7.4.270.0030.00316.51
7.4.260.0000.00513.11
7.4.250.0060.00316.30
7.4.240.0040.00416.37
7.4.230.0060.00016.26
7.4.220.0070.01016.48
7.4.210.0080.00716.35
7.4.200.0070.00016.39
7.4.190.0070.00016.59
7.4.160.0060.00916.54
7.4.150.0100.00717.40
7.4.140.0160.00217.86
7.4.130.0110.00616.29
7.4.120.0100.00716.43
7.4.110.0100.01316.43
7.4.100.0070.01016.45
7.4.90.0070.01116.23
7.4.80.0150.00319.39
7.4.70.0100.00716.24
7.4.60.0160.00316.28
7.4.50.0000.00616.35
7.4.40.0090.00622.77
7.4.30.0040.01816.42
7.4.00.0070.01014.97
7.3.330.0060.00012.86
7.3.320.0000.00513.04
7.3.310.0080.00016.07
7.3.300.0030.00316.16
7.3.290.0100.00316.16
7.3.280.0080.00916.19
7.3.270.0100.00717.40
7.3.260.0100.00918.24
7.3.250.0070.00916.28
7.3.240.0030.01316.53
7.3.230.0030.01416.39
7.3.210.0140.00316.32
7.3.200.0000.01819.39
7.3.190.0110.00616.26
7.3.180.0060.00916.20
7.3.170.0130.00316.59
7.3.160.0130.00616.19
7.3.120.0030.01214.60
7.2.330.0110.00816.54
7.2.320.0100.01416.71
7.2.310.0060.01216.39
7.2.300.0030.01416.41
7.2.290.0130.00316.58
7.2.60.0030.01016.95
7.2.00.0070.00718.99
7.1.200.0040.01115.59
7.1.100.0030.01318.16
7.1.70.0000.00717.06
7.1.60.0130.01319.40
7.1.50.0100.01016.83
7.1.00.0030.03322.28
7.0.200.0030.00616.86
7.0.140.0000.08022.21
7.0.90.0400.04319.91
7.0.80.0430.03319.82
7.0.70.0400.04020.02
7.0.60.0430.03719.77
7.0.50.0470.08020.24
7.0.40.0130.07720.09
7.0.30.0130.07319.95
7.0.20.0030.04320.13
7.0.10.0000.04319.94
7.0.00.0000.04720.07
5.6.280.0070.06721.14
5.6.240.0070.05720.66
5.6.230.0070.03720.71
5.6.220.0070.03720.58
5.6.210.0000.04320.64
5.6.200.0000.04721.04
5.6.190.0030.05021.01
5.6.180.0070.03720.99
5.6.170.0070.03721.00
5.6.160.0030.04021.16
5.6.150.0070.04320.95
5.6.140.0130.06720.93
5.6.130.0200.07021.11
5.6.120.0000.07321.01
5.6.110.0070.06320.93
5.6.100.0070.07020.91
5.6.90.0130.07720.99
5.6.80.0070.07720.41
5.6.70.0100.08020.45
5.6.60.0070.08020.32
5.6.50.0100.08020.41
5.6.40.0100.07720.43
5.6.30.0000.08720.37
5.6.20.0170.07020.40
5.6.10.0070.08020.43
5.6.00.0130.07020.27
5.5.380.0030.04020.54
5.5.370.0070.04720.43
5.5.360.0030.04020.38
5.5.350.0070.03720.40
5.5.340.0070.04020.75
5.5.330.0030.03720.75
5.5.320.0000.04320.88
5.5.310.0070.03720.89
5.5.300.0130.06720.63
5.5.290.0000.06720.79
5.5.280.0070.04720.85
5.5.270.0130.08020.76
5.5.260.0130.07320.86
5.5.250.0070.05020.45
5.5.240.0030.05320.19
5.5.230.0100.07020.29
5.5.220.0130.07020.23
5.5.210.0070.07720.09
5.5.200.0070.08020.23
5.5.190.0030.04720.22
5.5.180.0000.04720.23
5.5.160.0100.07020.10
5.5.150.0070.04320.25
5.5.140.0100.07720.09
5.5.130.0130.07320.13
5.5.120.0070.05020.09
5.5.110.0000.06719.98
5.5.100.0170.07320.10
5.5.90.0030.08020.05
5.5.80.0070.08020.00
5.5.70.0070.04720.14
5.5.60.0070.08020.07
5.5.50.0000.05320.07
5.5.40.0130.07019.96
5.5.30.0100.08020.00
5.5.20.0070.07720.08
5.5.10.0100.06320.11
5.5.00.0100.03319.95
5.4.450.0100.07719.45
5.4.440.0100.07719.37
5.4.430.0000.05719.34
5.4.420.0100.05019.10
5.4.410.0070.04719.42
5.4.400.0030.04719.10
5.4.390.0170.05718.81
5.4.380.0000.08018.79
5.4.370.0000.07719.23
5.4.360.0070.07318.98
5.4.350.0100.07019.03
5.4.340.0170.06718.79
5.4.320.0070.07719.05
5.4.310.0130.06318.95
5.4.300.0200.06318.80
5.4.290.0100.07319.09
5.4.280.0070.04719.05
5.4.270.0000.08018.97
5.4.260.0070.07718.90
5.4.250.0070.07319.02
5.4.240.0030.05318.89
5.4.230.0030.08018.89
5.4.220.0130.07318.78
5.4.210.0030.07719.04
5.4.200.0070.06719.04
5.4.190.0100.05319.05
5.4.180.0030.05018.96
5.4.170.0000.04318.95
5.4.160.0030.04018.91
5.4.150.0000.08018.88
5.4.140.0070.04316.29
5.4.130.0030.07316.27
5.4.120.0100.06316.23
5.4.110.0000.07716.45
5.4.100.0100.07016.26
5.4.90.0070.06716.22
5.4.80.0070.04716.28
5.4.70.0030.07016.40
5.4.60.0030.06716.38
5.4.50.0100.03316.28
5.4.40.0100.04016.36
5.4.30.0030.07716.26
5.4.20.0070.06016.18
5.4.10.0000.07716.17
5.4.00.0070.07315.46
5.3.290.0030.08314.64
5.3.280.0100.07014.43
5.3.270.0100.07314.57
5.3.260.0100.07014.57
5.3.250.0070.07714.54
5.3.240.0170.03714.59
5.3.230.0030.07714.58
5.3.220.0030.04714.42
5.3.210.0030.08014.38
5.3.200.0030.07714.51
5.3.190.0070.05014.49
5.3.180.0000.08014.52
5.3.170.0170.05314.38
5.3.160.0030.05314.41
5.3.150.0000.07314.38
5.3.140.0100.05714.51
5.3.130.0030.08014.50
5.3.120.0030.07714.50
5.3.110.0030.05714.54
5.3.100.0030.04714.02
5.3.90.0170.06013.83
5.3.80.0070.05313.87
5.3.70.0130.06013.92
5.3.60.0100.06313.86
5.3.50.0070.05313.94
5.3.40.0100.06013.92
5.3.30.0070.05713.85
5.3.20.0030.07313.64
5.3.10.0030.06713.64
5.3.00.0130.05013.59
5.2.170.0000.05311.21
5.2.160.0070.05310.93
5.2.150.0000.06711.02
5.2.140.0030.05711.02
5.2.130.0030.04711.08
5.2.120.0070.04711.02
5.2.110.0000.06710.91
5.2.100.0070.05311.04
5.2.90.0070.06311.13
5.2.80.0000.04011.00
5.2.70.0000.06011.05
5.2.60.0070.03011.02
5.2.50.0100.05710.97
5.2.40.0070.06010.94
5.2.30.0070.03010.99
5.2.20.0030.05710.84
5.2.10.0070.05310.76
5.2.00.0070.04310.76
5.1.60.0000.03710.76
5.1.50.0030.05310.76
5.1.40.0000.04310.76
5.1.30.0000.04710.76
5.1.20.0070.03310.76
5.1.10.0030.04710.76
5.1.00.0000.05310.76
5.0.50.0030.04710.76
5.0.40.0030.04010.76
5.0.30.0070.06310.76
5.0.20.0070.04010.76
5.0.10.0070.04010.76
5.0.00.0000.06010.76
4.4.90.0000.03310.76
4.4.80.0070.03010.76
4.4.70.0000.02010.76
4.4.60.0000.02010.76
4.4.50.0000.03710.76
4.4.40.0000.05710.76
4.4.30.0070.02710.76
4.4.20.0030.03310.76
4.4.10.0000.04010.76
4.4.00.0030.04710.76
4.3.110.0070.03010.76
4.3.100.0030.03010.76
4.3.90.0030.03310.76
4.3.80.0000.05310.76
4.3.70.0100.02710.76
4.3.60.0000.03710.76
4.3.50.0000.03310.76
4.3.40.0070.05010.76
4.3.30.0000.02710.76
4.3.20.0000.03710.76
4.3.10.0000.04010.76
4.3.00.0030.02710.76

preferences:
53.34 ms | 400 KiB | 5 Q