3v4l.org

run code in 300+ PHP versions simultaneously
<?php $User = array( 'Name' => "Hans-Peterµµ", 'Contacts' => array(1, 2, 3, 4, 5, 6, 7, 42), 'Active' => 1 ); $J = json_encode(array_utf8_encode($User)); echo $J; function array_utf8_encode($Array) { foreach($Array as &$Val) { if(is_array($Val)) { $Val = array_utf8_encode($Val); } elseif(is_string($Val)) { $Val = mb_convert_encoding($Val, 'UTF-8', 'auto'); } } return $Array; }

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)
8.3.60.0120.00618.43
8.3.50.0130.00621.27
8.3.40.0060.00918.72
8.3.30.0110.00418.94
8.3.20.0040.00420.21
8.3.10.0050.00320.36
8.3.00.0000.00819.13
8.2.180.0060.01216.50
8.2.170.0150.00622.96
8.2.160.0170.00320.53
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0050.00321.10
8.2.110.0030.00520.38
8.2.100.0110.00018.09
8.2.90.0040.00419.35
8.2.80.0080.00017.97
8.2.70.0060.00317.63
8.2.60.0040.00418.05
8.2.50.0030.00518.07
8.2.40.0030.00918.09
8.2.30.0030.00519.56
8.2.20.0090.00017.69
8.2.10.0070.00018.15
8.2.00.0040.00417.69
8.1.280.0100.01025.92
8.1.270.0040.00423.75
8.1.260.0000.00726.35
8.1.250.0060.00328.09
8.1.240.0030.00623.84
8.1.230.0070.00319.16
8.1.220.0000.00717.91
8.1.210.0080.00018.77
8.1.200.0100.00317.38
8.1.190.0030.00617.35
8.1.180.0050.00318.10
8.1.170.0090.00018.64
8.1.160.0040.00422.07
8.1.150.0040.00418.96
8.1.140.0070.00317.57
8.1.130.0040.00417.77
8.1.120.0040.00417.50
8.1.110.0000.00717.42
8.1.100.0000.00717.43
8.1.90.0040.00417.59
8.1.80.0000.00817.41
8.1.70.0030.00317.41
8.1.60.0060.00317.71
8.1.50.0080.00017.59
8.1.40.0040.00417.59
8.1.30.0040.00417.71
8.1.20.0000.00817.63
8.1.10.0000.00817.63
8.1.00.0000.00717.41
8.0.300.0040.00418.77
8.0.290.0000.00716.63
8.0.280.0030.00318.52
8.0.270.0000.00717.34
8.0.260.0070.00017.29
8.0.250.0030.00317.03
8.0.240.0070.00017.09
8.0.230.0030.00317.03
8.0.220.0000.00717.04
8.0.210.0000.00716.99
8.0.200.0030.00317.05
8.0.190.0040.00716.91
8.0.180.0040.00417.01
8.0.170.0040.00417.05
8.0.160.0040.00316.84
8.0.150.0070.00016.81
8.0.140.0040.00416.80
8.0.130.0030.00313.39
8.0.120.0080.00016.98
8.0.110.0000.00716.84
8.0.100.0040.00417.00
8.0.90.0000.00717.08
8.0.80.0140.00716.84
8.0.70.0000.00716.94
8.0.60.0040.00416.80
8.0.50.0040.00416.83
8.0.30.0090.01117.10
8.0.20.0060.01417.40
8.0.10.0000.00816.92
8.0.00.0150.00316.70
7.4.330.0050.00015.00
7.4.320.0050.00316.67
7.4.300.0030.00316.66
7.4.290.0030.00316.60
7.4.280.0030.00616.62
7.4.270.0030.00316.60
7.4.260.0000.00716.66
7.4.250.0050.00316.65
7.4.240.0040.00316.64
7.4.230.0030.00316.76
7.4.220.0120.00616.59
7.4.210.0060.01016.62
7.4.200.0000.00716.58
7.4.160.0100.01016.67
7.4.150.0070.01317.40
7.4.140.0080.00917.86
7.4.130.0100.01016.67
7.4.120.0100.00716.55
7.4.110.0090.00616.42
7.4.100.0210.00416.45
7.4.90.0160.00316.44
7.4.80.0060.01219.39
7.4.70.0100.00716.60
7.4.60.0070.01016.59
7.4.50.0080.00016.57
7.4.40.0060.01316.55
7.4.30.0130.00716.55
7.4.00.0090.00615.07
7.3.330.0050.00013.32
7.3.320.0020.00213.31
7.3.310.0050.00216.33
7.3.300.0030.00316.32
7.3.290.0030.01516.32
7.3.280.0070.00816.36
7.3.270.0100.01317.40
7.3.260.0070.01816.35
7.3.250.0100.00716.38
7.3.240.0090.00916.68
7.3.230.0100.00716.45
7.3.210.0110.00816.71
7.3.200.0090.01219.39
7.3.190.0120.00916.29
7.3.180.0090.00616.50
7.3.170.0140.00316.74
7.3.160.0100.00616.52
7.2.330.0090.00916.49
7.2.320.0060.01216.76
7.2.310.0140.00716.54
7.2.300.0060.01216.78
7.2.290.0130.00316.80
7.2.00.0150.00319.50
7.1.100.0080.00418.39
7.1.70.0000.00717.07
7.1.60.0060.01319.61
7.1.50.0070.01716.75
7.1.00.0000.08022.57
7.0.200.0090.00614.98
7.0.140.0030.07322.05
7.0.110.0030.09319.97
7.0.100.0170.07320.13
7.0.90.0100.08020.07
7.0.80.0030.09019.91
7.0.70.0100.08320.09
7.0.60.0070.08320.05
7.0.50.0100.07320.42
7.0.40.0170.07320.13
7.0.30.0000.04720.13
7.0.20.0200.07020.16
7.0.10.0070.04020.18
7.0.00.0130.04020.18
5.6.280.0130.06320.79
5.6.260.0130.07720.70
5.6.250.0070.08320.66
5.6.240.0170.07320.70
5.6.230.0130.08020.70
5.6.220.0030.08020.67
5.6.210.0030.05720.66
5.6.200.0070.08021.14
5.6.190.0130.06721.19
5.6.180.0130.07721.10
5.6.170.0070.09020.94
5.6.160.0130.08021.05
5.6.150.0100.06321.08
5.6.140.0270.06720.93
5.6.130.0070.09021.12
5.6.120.0100.07321.13
5.6.110.0100.08320.95
5.6.100.0030.08321.07
5.6.90.0100.08321.20
5.6.80.0000.08320.37
5.6.70.0170.06320.49
5.6.60.0100.03720.46
5.6.50.0130.08320.48
5.6.40.0130.07020.48
5.6.30.0130.06020.50
5.6.20.0070.06320.35
5.6.10.0100.07020.50
5.6.00.0070.08320.61
5.5.380.0030.05020.29
5.5.370.0230.06720.42
5.5.360.0070.08020.41
5.5.350.0100.07320.49
5.5.340.0070.08320.81
5.5.330.0070.08021.04
5.5.320.0100.07320.71
5.5.310.0030.04320.97
5.5.300.0070.08020.81
5.5.290.0100.07320.70
5.5.280.0130.06020.80
5.5.270.0070.08720.94
5.5.260.0170.07721.00
5.5.250.0170.07020.84
5.5.240.0170.06720.38
5.5.230.0030.07720.28
5.5.220.0070.04320.33
5.5.210.0100.03720.08
5.5.200.0100.04320.05
5.5.190.0030.05020.29
5.5.180.0100.07320.32
5.5.160.0070.07320.05
5.5.150.0130.06020.29
5.5.140.0100.05720.16
5.5.130.0030.07320.13
5.5.120.0100.06320.13
5.5.110.0030.08020.18
5.5.100.0030.06020.01
5.5.90.0070.07720.00
5.5.80.0070.07320.27
5.5.70.0000.08320.16
5.5.60.0100.04320.24
5.5.50.0030.08019.99
5.5.40.0130.06720.18
5.5.30.0100.07720.15
5.5.20.0130.07020.13
5.5.10.0030.08020.07
5.5.00.0070.05320.02
5.4.450.0030.06719.67
5.4.440.0070.07719.49
5.4.430.0130.07019.31
5.4.420.0070.04019.48
5.4.410.0070.05019.30
5.4.400.0200.06019.02
5.4.390.0100.06719.03
5.4.380.0030.07319.14
5.4.370.0070.07719.09
5.4.360.0000.07319.31
5.4.350.0030.08019.00
5.4.340.0030.07718.98
5.4.320.0170.07019.23
5.4.310.0070.07319.03
5.4.300.0030.08318.98
5.4.290.0070.03719.18
5.4.280.0100.07719.02
5.4.270.0100.06718.99
5.4.260.0170.06019.18
5.4.250.0130.07019.00
5.4.240.0130.06719.00
5.4.230.0200.06018.99
5.4.220.0170.06019.15
5.4.210.0100.04019.13
5.4.200.0130.06719.30
5.4.190.0000.05319.00
5.4.180.0130.07319.02
5.4.170.0030.06719.13
5.4.160.0100.07018.93
5.4.150.0130.06718.93
5.4.140.0130.07016.52
5.4.130.0070.07716.35
5.4.120.0000.08016.52
5.4.110.0100.06316.54
5.4.100.0030.07316.41
5.4.90.0000.03716.59
5.4.80.0030.07716.58
5.4.70.0070.07016.54
5.4.60.0030.07016.56
5.4.50.0070.05716.52
5.4.40.0070.07316.40
5.4.30.0070.07316.52
5.4.20.0070.07016.44
5.4.10.0170.05716.53
5.4.00.0130.06015.83
5.3.290.0000.07714.66
5.3.280.0070.08014.73
5.3.270.0100.07014.57
5.3.260.0070.07314.63
5.3.250.0070.04714.84
5.3.240.0100.07314.58
5.3.230.0130.06714.74
5.3.220.0000.08014.57
5.3.210.0100.07014.71
5.3.200.0070.07014.65
5.3.190.0070.07314.80
5.3.180.0100.07314.56
5.3.170.0030.04314.64
5.3.160.0070.07014.60
5.3.150.0000.05014.57
5.3.140.0000.07314.57
5.3.130.0000.06714.56
5.3.120.0030.08314.56
5.3.110.0070.07714.57
5.3.100.0070.07714.05
5.3.90.0030.06314.11
5.3.80.0030.04313.88
5.3.70.0030.08014.02
5.3.60.0100.07314.01
5.3.50.0000.05314.09
5.3.40.0070.08013.90
5.3.30.0100.03313.91
5.3.20.0070.06013.74
5.3.10.0000.04313.69
5.3.00.0000.07013.73
5.2.170.0030.03712.11
5.2.160.0070.04712.11
5.2.150.0030.04712.11
5.2.140.0070.02712.11
5.2.130.0070.06012.11
5.2.120.0100.05312.11
5.2.110.0070.06012.11
5.2.100.0070.05712.11
5.2.90.0070.05312.11
5.2.80.0030.06312.11
5.2.70.0000.06312.11
5.2.60.0030.04712.11
5.2.50.0030.05712.11
5.2.40.0100.06012.11
5.2.30.0030.06312.11
5.2.20.0000.05712.11
5.2.10.0000.06312.11
5.2.00.0100.05312.11
5.1.60.0030.03712.11
5.1.50.0070.05312.11
5.1.40.0170.04012.11
5.1.30.0000.04312.11
5.1.20.0000.03712.11
5.1.10.0030.04012.11
5.1.00.0030.05712.11
5.0.50.0070.04012.11
5.0.40.0070.02712.11
5.0.30.0000.07012.11
5.0.20.0000.04312.11
5.0.10.0070.04012.11
5.0.00.0000.04712.11
4.4.90.0000.03312.11
4.4.80.0000.04012.11
4.4.70.0030.02012.11
4.4.60.0030.01712.11
4.4.50.0070.03312.11
4.4.40.0030.05312.11
4.4.30.0070.03012.11
4.4.20.0070.03012.11
4.4.10.0100.03012.11
4.4.00.0030.05012.11
4.3.110.0000.03712.11
4.3.100.0000.03712.11
4.3.90.0000.03312.11
4.3.80.0000.05312.11
4.3.70.0100.02712.11
4.3.60.0070.02712.11
4.3.50.0030.02012.11
4.3.40.0000.03012.11
4.3.30.0030.03712.11
4.3.20.0000.04012.11
4.3.10.0000.03712.11
4.3.00.0030.02312.11

preferences:
41.28 ms | 401 KiB | 5 Q