3v4l.org

run code in 300+ PHP versions simultaneously
<?php $json = array( 'pow2' => array( 'topsh' => array('test' => 1, 'test2' => 2), 'pssa' => array('gold' => 153, 'everypower' => 95) ) ); echo json_encode(json_encode($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)
8.3.40.0140.00418.67
8.3.30.0030.01018.96
8.3.20.0040.00420.16
8.3.10.0040.00421.90
8.3.00.0040.00419.13
8.2.170.0100.01022.96
8.2.160.0070.00720.35
8.2.150.0080.00024.18
8.2.140.0060.00324.66
8.2.130.0070.00026.16
8.2.120.0070.00022.21
8.2.110.0070.00322.29
8.2.100.0090.00317.84
8.2.90.0050.00319.23
8.2.80.0080.00017.97
8.2.70.0040.00417.50
8.2.60.0040.00418.04
8.2.50.0000.00918.07
8.2.40.0030.00519.82
8.2.30.0000.00718.01
8.2.20.0030.00617.55
8.2.10.0030.00517.93
8.2.00.0000.00717.60
8.1.270.0140.00423.99
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0090.00022.05
8.1.230.0110.00019.16
8.1.220.0000.00917.74
8.1.210.0040.00418.77
8.1.200.0100.00017.23
8.1.190.0030.00517.22
8.1.180.0000.00818.10
8.1.170.0040.00418.48
8.1.160.0030.00621.95
8.1.150.0030.00618.67
8.1.140.0070.00017.39
8.1.130.0000.00817.88
8.1.120.0000.00717.27
8.1.110.0050.00317.27
8.1.100.0050.00217.46
8.1.90.0030.00317.41
8.1.80.0040.00417.34
8.1.70.0000.00817.23
8.1.60.0140.00317.40
8.1.50.0040.00417.46
8.1.40.0000.00817.44
8.1.30.0000.00817.48
8.1.20.0050.00317.54
8.1.10.0020.00517.56
8.1.00.0000.00717.32
8.0.300.0070.00018.77
8.0.290.0000.00717.05
8.0.280.0030.00318.39
8.0.270.0070.00017.25
8.0.260.0060.00017.18
8.0.250.0050.00216.86
8.0.240.0030.00316.87
8.0.230.0000.00716.83
8.0.220.0030.00316.79
8.0.210.0070.00016.73
8.0.200.0000.00616.77
8.0.190.0050.00316.76
8.0.180.0050.00216.82
8.0.170.0000.00716.86
8.0.160.0050.00216.89
8.0.150.0000.00716.77
8.0.140.0040.00416.79
8.0.130.0030.00313.24
8.0.120.0080.00016.77
8.0.110.0070.00016.85
8.0.100.0070.00016.88
8.0.90.0000.00716.68
8.0.80.0130.00616.77
8.0.70.0000.00716.73
8.0.60.0000.00716.70
8.0.50.0040.00416.70
8.0.30.0110.00816.91
8.0.20.0110.00717.40
8.0.10.0000.00716.83
8.0.00.0090.01316.60
7.4.330.0000.00515.00
7.4.320.0030.00316.53
7.4.300.0000.00616.34
7.4.290.0030.00316.34
7.4.280.0070.00016.52
7.4.270.0030.00316.52
7.4.260.0030.00316.40
7.4.250.0020.00516.41
7.4.240.0030.00416.39
7.4.230.0080.00016.46
7.4.220.0060.01216.35
7.4.210.0060.01216.54
7.4.200.0000.00716.37
7.4.190.0030.00316.67
7.4.160.0100.01016.51
7.4.150.0070.01017.40
7.4.140.0160.00317.86
7.4.130.0080.01016.36
7.4.120.0070.00916.47
7.4.110.0070.01016.42
7.4.100.0070.01316.37
7.4.90.0120.00616.34
7.4.80.0090.00919.39
7.4.70.0080.01416.55
7.4.60.0130.00316.21
7.4.50.0030.00316.43
7.4.40.0040.01216.32
7.4.30.0100.00716.55
7.4.00.0000.01614.78
7.3.330.0060.00013.02
7.3.320.0020.00212.99
7.3.310.0000.00716.21
7.3.300.0030.00316.05
7.3.290.0100.00716.13
7.3.280.0090.01216.13
7.3.270.0110.00617.40
7.3.260.0030.01516.15
7.3.250.0150.00516.19
7.3.240.0070.01016.28
7.3.230.0130.00916.39
7.3.210.0120.00616.09
7.3.200.0060.01419.39
7.3.190.0070.01016.22
7.3.180.0090.00616.43
7.3.170.0060.01016.27
7.3.160.0100.00716.24
7.3.120.0070.01014.34
7.3.110.0090.00414.63
7.3.100.0130.00314.29
7.3.90.0100.00314.32
7.3.80.0060.00314.26
7.3.70.0070.00714.59
7.3.60.0080.00414.63
7.3.50.0040.00714.73
7.3.40.0000.01214.60
7.3.30.0060.00914.82
7.3.20.0040.01616.58
7.3.10.0060.00616.57
7.3.00.0000.01416.54
7.2.330.0060.01216.61
7.2.320.0170.00916.59
7.2.310.0100.00716.21
7.2.300.0160.00016.45
7.2.290.0000.01716.21
7.2.240.0030.01015.12
7.2.230.0000.01114.85
7.2.220.0030.00614.80
7.2.210.0000.01514.90
7.2.200.0040.00814.83
7.2.190.0070.01114.71
7.2.180.0060.00614.90
7.2.170.0000.01514.85
7.2.160.0030.01314.84
7.2.150.0030.01416.77
7.2.140.0040.01116.89
7.2.130.0040.00416.88
7.2.120.0070.01016.80
7.2.110.0070.00716.86
7.2.100.0080.00416.70
7.2.90.0120.00316.87
7.2.80.0100.00716.80
7.2.70.0040.01116.45
7.2.60.0040.01116.80
7.2.50.0080.00416.93
7.2.40.0100.00316.80
7.2.30.0060.00316.78
7.2.20.0070.00816.81
7.2.10.0040.01116.85
7.2.00.0070.00817.86
7.1.330.0040.00415.83
7.1.320.0060.00915.38
7.1.310.0060.00615.55
7.1.300.0030.01315.65
7.1.290.0120.00315.68
7.1.280.0030.00715.67
7.1.270.0000.01815.49
7.1.260.0060.00615.71
7.1.250.0040.00715.73
7.1.100.0060.00617.96
7.1.70.0040.00416.96
7.1.60.0090.00919.46
7.1.50.0160.01334.43
7.1.00.0030.07022.54
7.0.200.0050.00216.71
7.0.140.0030.07022.08
7.0.90.0400.08719.86
7.0.80.0530.08319.86
7.0.70.0600.07319.80
7.0.60.0670.07020.00
7.0.50.0530.09020.32
7.0.40.0000.08720.04
7.0.30.0200.06720.13
7.0.20.0130.06020.04
7.0.10.0070.05320.13
7.0.00.0130.07720.01
5.6.280.0070.06321.07
5.6.240.0130.07320.45
5.6.230.0100.07720.56
5.6.220.0200.07320.62
5.6.210.0000.08320.61
5.6.200.0100.08020.95
5.6.190.0000.07020.95
5.6.180.0000.08320.94
5.6.170.0130.05020.93
5.6.160.0030.08320.95
5.6.150.0100.06321.08
5.6.140.0070.04720.95
5.6.130.0100.04021.01
5.6.120.0100.04321.10
5.6.110.0000.08721.16
5.6.100.0130.08021.05
5.6.90.0300.06321.00
5.6.80.0030.07720.39
5.6.70.0000.09020.48
5.6.60.0070.06720.38
5.6.50.0070.06020.51
5.6.40.0030.08020.35
5.6.30.0130.06320.40
5.6.20.0030.07720.23
5.6.10.0200.05320.45
5.6.00.0130.04720.29
5.5.380.0170.07320.40
5.5.370.0000.08720.48
5.5.360.0130.07720.43
5.5.350.0100.07320.33
5.5.340.0070.05320.88
5.5.330.0170.07320.79
5.5.320.0130.05320.70
5.5.310.0130.05720.91
5.5.300.0070.06020.77
5.5.290.0070.08020.79
5.5.280.0030.05720.82
5.5.270.0030.05020.87
5.5.260.0300.03720.87
5.5.250.0030.08720.58
5.5.240.0000.08320.30
5.5.230.0100.07320.26
5.5.220.0030.08720.29
5.5.210.0100.05320.19
5.5.200.0070.07320.22
5.5.190.0100.06020.14
5.5.180.0130.07319.98
5.5.160.0070.04020.18
5.5.150.0030.07720.20
5.5.140.0030.08320.12
5.5.130.0130.03320.10
5.5.120.0100.06320.25
5.5.110.0100.07019.95
5.5.100.0170.07020.09
5.5.90.0130.07020.03
5.5.80.0230.06019.97
5.5.70.0170.05720.14
5.5.60.0070.06320.05
5.5.50.0070.07320.04
5.5.40.0070.07720.14
5.5.30.0030.04720.14
5.5.20.0030.08020.02
5.5.10.0070.09020.03
5.5.00.0030.04319.98
5.4.450.0100.05019.27
5.4.440.0000.06019.42
5.4.430.0070.04319.36
5.4.420.0100.08019.26
5.4.410.0030.04719.13
5.4.400.0070.07718.98
5.4.390.0200.05718.98
5.4.380.0030.05319.14
5.4.370.0030.06318.98
5.4.360.0000.08319.14
5.4.350.0030.05019.03
5.4.340.0070.04718.79
5.4.320.0000.05019.04
5.4.310.0070.07719.09
5.4.300.0030.08318.90
5.4.290.0100.07319.14
5.4.280.0030.07719.06
5.4.270.0130.06319.10
5.4.260.0070.07319.12
5.4.250.0070.08018.80
5.4.240.0100.07319.02
5.4.230.0100.06719.02
5.4.220.0030.07719.07
5.4.210.0100.07318.91
5.4.200.0070.07019.11
5.4.190.0070.05019.13
5.4.180.0100.07318.94
5.4.170.0100.06719.03
5.4.160.0070.06319.10
5.4.150.0170.06719.10
5.4.140.0100.07016.34
5.4.130.0100.07016.31
5.4.120.0100.04016.21
5.4.110.0000.06716.36
5.4.100.0030.07316.25
5.4.90.0100.04016.44
5.4.80.0030.07716.24
5.4.70.0000.04716.20
5.4.60.0100.06716.38
5.4.50.0170.05016.27
5.4.40.0070.03316.29
5.4.30.0000.04716.38
5.4.20.0100.04316.40
5.4.10.0070.05016.31
5.4.00.0070.04015.76
5.3.290.0100.06014.66
5.3.280.0070.08014.55
5.3.270.0100.08014.46
5.3.260.0000.04714.44
5.3.250.0070.06714.47
5.3.240.0070.07014.60
5.3.230.0070.07714.55
5.3.220.0070.07314.42
5.3.210.0100.05314.52
5.3.200.0130.06714.40
5.3.190.0070.07014.47
5.3.180.0070.07014.52
5.3.170.0100.07014.52
5.3.160.0030.06714.55
5.3.150.0100.04314.54
5.3.140.0070.05014.52
5.3.130.0100.07314.50
5.3.120.0100.06714.55
5.3.110.0100.07714.52
5.3.100.0030.04713.85
5.3.90.0070.03313.88
5.3.80.0100.03313.97
5.3.70.0030.04013.92
5.3.60.0070.03313.86
5.3.50.0070.04013.88
5.3.40.0100.06013.93
5.3.30.0030.05013.66
5.3.20.0070.06313.68
5.3.10.0070.06013.51
5.3.00.0070.07313.61
5.2.170.0000.06011.09
5.2.160.0030.04711.00
5.2.150.0000.04011.06
5.2.140.0070.06310.93
5.2.130.0070.06310.93
5.2.120.0000.06011.08
5.2.110.0070.03011.09
5.2.100.0100.05010.96
5.2.90.0030.06311.09
5.2.80.0100.05710.93
5.2.70.0070.04011.09
5.2.60.0030.06311.04
5.2.50.0030.06010.99
5.2.40.0100.03311.05
5.2.30.0030.06310.81
5.2.20.0030.04310.96
5.2.10.0100.04310.90
5.2.00.0070.06310.66
5.1.60.0070.04310.01
5.1.50.0030.0439.98
5.1.40.0070.0509.92
5.1.30.0070.05710.38
5.1.20.0070.04710.29
5.1.10.0000.05310.10
5.1.00.0030.0579.93
5.0.50.0000.0308.55
5.0.40.0070.0338.43
5.0.30.0070.0638.25
5.0.20.0000.0378.25
5.0.10.0000.0478.05
5.0.00.0000.0408.15
4.4.90.0070.0136.95
4.4.80.0000.0336.95
4.4.70.0000.0276.95
4.4.60.0030.0306.95
4.4.50.0070.0206.95
4.4.40.0030.0406.95
4.4.30.0030.0306.95
4.4.20.0000.0306.95
4.4.10.0000.0376.95
4.4.00.0070.0476.95
4.3.110.0070.0336.95
4.3.100.0000.0376.95
4.3.90.0170.0206.95
4.3.80.0000.0276.95
4.3.70.0000.0176.95
4.3.60.0030.0336.95
4.3.50.0000.0206.95
4.3.40.0030.0336.95
4.3.30.0000.0406.95
4.3.20.0000.0376.95
4.3.10.0000.0176.95
4.3.00.0000.0176.95

preferences:
41.16 ms | 400 KiB | 5 Q