3v4l.org

run code in 300+ PHP versions simultaneously
<?php //Source: https://bugs.php.net/bug.php?id=63898 $key = "Foo " . chr(163); $array = array($key => ""); $json = json_encode($array); echo "JSON: ".$json."\n"; var_dump(json_decode($json));

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)
8.3.60.0070.00718.56
8.3.50.0200.00921.94
8.3.40.0080.00818.77
8.3.30.0090.00619.12
8.3.20.0000.00820.07
8.3.10.0050.00322.10
8.3.00.0080.00022.41
8.2.180.0060.00916.50
8.2.170.0140.00722.96
8.2.160.0040.01121.00
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0040.00419.36
8.2.110.0030.00620.99
8.2.100.0120.00018.16
8.2.90.0000.00819.20
8.2.80.0000.00817.97
8.2.70.0040.00417.63
8.2.60.0080.00017.93
8.2.50.0040.00418.10
8.2.40.0000.00818.16
8.2.30.0000.00718.11
8.2.20.0000.00717.59
8.2.10.0000.00717.82
8.2.00.0050.00317.68
8.1.280.0000.02125.92
8.1.270.0080.00021.89
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0050.00521.37
8.1.230.0060.00619.67
8.1.220.0040.00417.78
8.1.210.0000.00818.77
8.1.200.0030.00617.23
8.1.190.0040.00417.23
8.1.180.0050.00318.10
8.1.170.0050.00318.59
8.1.160.0000.00722.01
8.1.150.0060.00318.64
8.1.140.0000.00817.50
8.1.130.0080.00017.83
8.1.120.0000.00917.47
8.1.110.0070.00017.51
8.1.100.0070.00017.29
8.1.90.0080.00017.31
8.1.80.0080.00017.49
8.1.70.0070.00017.46
8.1.60.0060.00317.63
8.1.50.0050.00317.56
8.1.40.0000.00717.47
8.1.30.0000.00817.61
8.1.20.0080.00017.65
8.1.10.0000.00717.56
8.1.00.0000.00817.39
8.0.300.0070.00018.77
8.0.290.0050.00216.75
8.0.280.0030.00318.42
8.0.270.0000.00817.16
8.0.260.0030.00316.81
8.0.250.0030.00317.00
8.0.240.0050.00316.86
8.0.230.0000.00716.93
8.0.220.0030.00316.82
8.0.210.0040.00416.84
8.0.200.0030.00316.91
8.0.190.0040.00416.92
8.0.180.0000.00716.95
8.0.170.0000.00816.82
8.0.160.0000.00716.93
8.0.150.0050.00316.78
8.0.140.0030.00316.75
8.0.130.0000.00513.27
8.0.120.0000.00816.76
8.0.110.0000.00816.91
8.0.100.0000.00816.73
8.0.90.0000.00816.93
8.0.80.0110.00416.82
8.0.70.0000.00816.87
8.0.60.0040.00416.66
8.0.50.0050.00216.81
8.0.30.0050.01516.88
8.0.20.0130.00717.40
8.0.10.0030.00516.82
8.0.00.0090.01116.55
7.4.330.0000.00515.05
7.4.320.0030.00316.49
7.4.300.0000.00716.51
7.4.290.0070.00016.50
7.4.280.0000.00716.47
7.4.270.0050.00316.52
7.4.260.0040.00416.44
7.4.250.0040.00416.50
7.4.240.0040.00416.55
7.4.230.0070.00016.54
7.4.220.0130.00916.47
7.4.210.0100.00716.52
7.4.200.0040.00416.60
7.4.190.0000.00716.50
7.4.160.0090.00616.38
7.4.150.0070.01017.40
7.4.140.0090.00917.86
7.4.130.0120.00716.36
7.4.120.0060.01016.34
7.4.110.0140.00316.34
7.4.100.0140.00316.52
7.4.90.0070.01116.41
7.4.80.0070.01419.39
7.4.70.0040.01316.38
7.4.60.0110.00516.49
7.4.50.0000.00816.38
7.4.40.0110.00722.77
7.4.30.0150.00416.71
7.4.00.0070.00714.87
7.3.330.0020.00213.23
7.3.320.0000.00613.05
7.3.310.0000.00716.41
7.3.300.0030.00316.34
7.3.290.0000.01516.43
7.3.280.0080.00916.30
7.3.270.0050.01017.40
7.3.260.0070.01116.44
7.3.250.0100.01016.41
7.3.240.0030.01316.42
7.3.230.0090.00616.39
7.3.210.0090.00916.46
7.3.200.0100.00719.39
7.3.190.0070.01116.53
7.3.180.0130.00716.35
7.3.170.0100.00616.55
7.3.160.0070.01016.26
7.3.120.0040.01215.00
7.3.10.0140.00016.74
7.3.00.0040.01216.64
7.2.330.0030.01516.49
7.2.320.0140.00716.43
7.2.310.0130.01016.68
7.2.300.0040.01216.74
7.2.290.0040.01216.43
7.2.130.0070.00316.63
7.2.120.0030.01416.87
7.2.110.0090.00917.00
7.2.100.0070.00417.05
7.2.90.0060.01316.86
7.2.80.0150.00716.91
7.2.70.0260.00416.99
7.2.60.0100.00716.76
7.2.50.0060.01317.05
7.2.40.0100.00316.74
7.2.30.0090.00616.98
7.2.20.0120.00316.77
7.2.10.0000.01716.95
7.2.00.0060.00818.32
7.1.250.0120.00315.55
7.1.200.0000.01515.73
7.1.100.0040.00818.13
7.1.70.0000.00717.19
7.1.60.0170.00719.82
7.1.50.0100.01416.98
7.1.00.0030.07722.44
7.0.200.0000.01016.47
7.0.140.0030.07322.09
7.0.90.0470.04719.93
7.0.80.0400.05319.83
7.0.70.0570.08019.88
7.0.60.0570.08020.02
7.0.50.0630.07720.39
7.0.40.0130.06320.05
7.0.30.0000.04720.19
7.0.20.0100.08320.04
7.0.10.0100.04719.94
7.0.00.0030.08719.99
5.6.280.0030.07321.10
5.6.240.0070.07320.63
5.6.230.0070.07720.51
5.6.220.0200.05720.52
5.6.210.0000.08020.52
5.6.200.0070.05021.11
5.6.190.0100.03720.95
5.6.180.0170.06321.13
5.6.170.0000.09021.13
5.6.160.0170.07321.05
5.6.150.0170.07021.13
5.6.140.0100.08021.04
5.6.130.0070.08721.05
5.6.120.0030.05321.04
5.6.110.0170.03021.00
5.6.100.0070.07021.04
5.6.90.0030.07321.03
5.6.80.0000.04320.43
5.6.70.0200.06320.38
5.6.60.0130.07020.42
5.6.50.0030.04720.33
5.6.40.0030.07720.41
5.6.30.0100.03720.39
5.6.20.0000.08320.35
5.6.10.0070.03320.45
5.6.00.0100.07320.34
5.5.380.0030.08720.50
5.5.370.0030.08020.34
5.5.360.0100.07720.28
5.5.350.0070.08020.38
5.5.340.0070.08320.92
5.5.330.0130.04720.83
5.5.320.0070.06320.80
5.5.310.0030.08320.82
5.5.300.0000.08720.81
5.5.290.0000.09020.87
5.5.280.0070.08320.88
5.5.270.0100.07720.89
5.5.260.0000.04720.78
5.5.250.0030.06720.68
5.5.240.0000.07320.20
5.5.230.0030.04020.28
5.5.220.0030.07320.25
5.5.210.0000.06720.29
5.5.200.0070.07320.14
5.5.190.0170.06320.23
5.5.180.0100.07020.21
5.5.160.0130.07320.07
5.5.150.0070.07320.16
5.5.140.0070.06720.23
5.5.130.0100.07720.23
5.5.120.0030.05320.17
5.5.110.0000.04020.21
5.5.100.0100.05320.09
5.5.90.0070.03320.09
5.5.80.0030.03720.06
5.5.70.0030.07319.99
5.5.60.0000.05019.99
5.5.50.0030.06319.95
5.5.40.0030.07020.04
5.5.30.0170.06320.03
5.5.20.0100.07020.01
5.5.10.0070.10019.95
5.5.00.0130.06020.07
5.4.450.0100.06719.27
5.4.440.0030.08719.57
5.4.430.0000.08319.42
5.4.420.0100.07019.35
5.4.410.0030.04319.14
5.4.400.0070.04718.95
5.4.390.0070.06319.17
5.4.380.0070.05719.03
5.4.370.0070.07319.03
5.4.360.0000.08019.13
5.4.350.0030.07019.03
5.4.340.0070.06719.23
5.4.320.0100.07719.12
5.4.310.0100.06718.98
5.4.300.0100.05019.14
5.4.290.0070.03719.06
5.4.280.0100.07019.07
5.4.270.0030.04018.94
5.4.260.0000.08019.02
5.4.250.0030.06319.14
5.4.240.0100.06318.89
5.4.230.0070.03018.94
5.4.220.0100.06719.05
5.4.210.0070.03318.89
5.4.200.0130.06318.89
5.4.190.0070.05019.05
5.4.180.0070.04019.09
5.4.170.0200.05019.02
5.4.160.0030.03719.02
5.4.150.0030.04318.76
5.4.140.0030.04016.08
5.4.130.0000.04016.02
5.4.120.0030.03716.34
5.4.110.0070.03016.21
5.4.100.0070.04316.42
5.4.90.0030.03716.38
5.4.80.0000.03716.38
5.4.70.0030.06316.41
5.4.60.0070.04016.25
5.4.50.0100.02716.30
5.4.40.0070.03716.28
5.4.30.0000.03316.37
5.4.20.0100.03016.27
5.4.10.0000.03716.23
5.4.00.0070.03015.77
5.3.290.0000.07314.60
5.3.280.0070.07014.55
5.3.270.0030.07714.60
5.3.260.0030.04014.56
5.3.250.0100.03714.59
5.3.240.0000.03714.59
5.3.230.0000.04014.54
5.3.220.0100.03014.55
5.3.210.0130.02714.42
5.3.200.0000.04014.42
5.3.190.0070.03314.56
5.3.180.0100.03014.52
5.3.170.0000.04314.40
5.3.160.0070.03314.47
5.3.150.0000.06014.56
5.3.140.0000.04314.43
5.3.130.0000.04014.37
5.3.120.0070.04014.55
5.3.110.0070.04014.52
5.3.100.0070.07714.02
5.3.90.0030.03314.02
5.3.80.0070.05014.00
5.3.70.0070.03314.02
5.3.60.0000.04013.86
5.3.50.0030.03713.93
5.3.40.0030.03713.91
5.3.30.0030.03313.87
5.3.20.0100.03313.64
5.3.10.0030.03713.41
5.3.00.0030.03313.58
5.2.170.0000.03311.12
5.2.160.0000.03011.21
5.2.150.0070.02311.18
5.2.140.0000.03011.00
5.2.130.0000.03011.09
5.2.120.0030.03310.94
5.2.110.0070.02711.08
5.2.100.0030.06310.93
5.2.90.0000.03011.05
5.2.80.0070.02310.93
5.2.70.0030.02711.16
5.2.60.0000.03010.97
5.2.50.0030.02710.86
5.2.40.0030.02710.98
5.2.30.0000.03710.98
5.2.20.0100.02010.82
5.2.10.0000.03010.91
5.2.00.0000.03710.71
5.1.60.0000.02710.00
5.1.50.0070.02010.02
5.1.40.0030.0239.81
5.1.30.0030.02310.40
5.1.20.0000.04710.27
5.1.10.0030.0209.87
5.1.00.0030.02310.08
5.0.50.0030.0208.59
5.0.40.0000.0238.45
5.0.30.0000.0378.25
5.0.20.0000.0178.18
5.0.10.0030.0278.25
5.0.00.0070.0638.24
4.4.90.0000.0176.73
4.4.80.0000.0136.73
4.4.70.0000.0176.73
4.4.60.0030.0176.73
4.4.50.0000.0136.73
4.4.40.0000.0236.73
4.4.30.0000.0176.73
4.4.20.0000.0176.73
4.4.10.0000.0136.73
4.4.00.0030.0436.73
4.3.110.0070.0106.73
4.3.100.0030.0136.73
4.3.90.0000.0136.73
4.3.80.0030.0206.73
4.3.70.0000.0136.73
4.3.60.0000.0136.73
4.3.50.0070.0106.73
4.3.40.0000.0236.73
4.3.30.0030.0136.73
4.3.20.0000.0236.73
4.3.10.0000.0236.73
4.3.00.0030.0206.73

preferences:
36.41 ms | 401 KiB | 5 Q