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), 'Seen' => array(array('UserID' => 2, 'Timestamp' => 5046), array('UserID' => 3, 'Timestamp' => 789456)), 'Active' => 1 ); $J = json_encode(array_utf8_encode($User)); die(($J)); function array_utf8_encode($Array) { foreach($Array as &$Val) { if(is_array($Val)) { $Val = array_utf8_encode($Val); } elseif(is_string($Val)) { $Val = mb_convert_encoding(htmlentities($Val), 'UTF-8'); } } 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)
8.3.60.0210.00018.43
8.3.50.0110.00921.21
8.3.40.0040.01118.67
8.3.30.0090.00619.04
8.3.20.0040.00420.20
8.3.10.0060.00320.64
8.3.00.0000.00819.38
8.2.180.0070.00716.50
8.2.170.0040.01122.96
8.2.160.0070.00720.39
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0040.00420.92
8.2.110.0050.00522.30
8.2.100.0060.00619.57
8.2.90.0050.00319.09
8.2.80.0050.00317.97
8.2.70.0080.00017.50
8.2.60.0030.00518.03
8.2.50.0040.00418.07
8.2.40.0080.00018.19
8.2.30.0040.00719.31
8.2.20.0040.00417.76
8.2.10.0040.00418.12
8.2.00.0000.00717.86
8.1.280.0060.01525.92
8.1.270.0080.00023.92
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0030.00723.92
8.1.230.0110.00019.01
8.1.220.0090.00017.77
8.1.210.0030.00618.77
8.1.200.0060.00317.47
8.1.190.0040.00417.23
8.1.180.0050.00318.10
8.1.170.0100.00018.70
8.1.160.0040.00422.04
8.1.150.0000.00718.95
8.1.140.0030.00617.41
8.1.130.0000.00717.50
8.1.120.0040.00417.55
8.1.110.0000.00917.42
8.1.100.0030.00317.53
8.1.90.0000.00717.44
8.1.80.0000.00717.51
8.1.70.0030.00317.38
8.1.60.0090.00017.62
8.1.50.0000.00817.59
8.1.40.0040.00417.57
8.1.30.0040.00417.69
8.1.20.0040.00417.74
8.1.10.0070.00017.47
8.1.00.0040.00417.39
8.0.300.0070.00018.77
8.0.290.0050.00316.73
8.0.280.0030.00318.51
8.0.270.0000.00717.24
8.0.260.0060.00016.88
8.0.250.0030.00316.95
8.0.240.0000.00717.01
8.0.230.0030.00317.07
8.0.220.0000.00716.92
8.0.210.0000.00816.96
8.0.200.0040.00416.94
8.0.190.0000.00717.02
8.0.180.0000.00716.96
8.0.170.0020.00517.09
8.0.160.0000.00716.97
8.0.150.0030.00316.98
8.0.140.0000.00816.99
8.0.130.0050.00013.44
8.0.120.0030.00516.88
8.0.110.0070.00016.89
8.0.100.0070.00016.82
8.0.90.0040.00416.84
8.0.80.0090.00617.06
8.0.70.0040.00416.86
8.0.60.0070.00017.07
8.0.50.0040.00416.98
8.0.30.0090.01117.17
8.0.20.0070.01017.40
8.0.10.0040.00416.95
8.0.00.0080.01116.96
7.4.330.0060.00015.00
7.4.320.0030.00316.59
7.4.300.0000.00616.65
7.4.290.0040.00416.49
7.4.280.0030.00516.57
7.4.270.0000.00616.59
7.4.260.0030.00416.62
7.4.250.0040.00416.46
7.4.240.0050.00216.62
7.4.230.0030.00516.57
7.4.220.0070.01316.56
7.4.210.0070.00716.73
7.4.200.0000.00716.50
7.4.160.0100.00716.60
7.4.150.0130.00717.40
7.4.140.0080.01017.86
7.4.130.0120.00716.56
7.4.120.0140.00416.52
7.4.110.0080.00816.51
7.4.100.0070.01016.52
7.4.90.0130.00916.37
7.4.80.0060.01219.39
7.4.70.0130.00316.57
7.4.60.0140.00316.52
7.4.50.0000.00816.65
7.4.40.0120.00616.36
7.4.30.0110.01116.46
7.4.00.0000.01514.69
7.3.330.0050.00013.36
7.3.320.0050.00013.46
7.3.310.0070.00016.44
7.3.300.0030.00316.45
7.3.290.0070.00716.46
7.3.280.0070.00816.43
7.3.270.0090.01117.40
7.3.260.0090.00916.47
7.3.250.0090.00816.46
7.3.240.0160.00616.61
7.3.230.0030.01416.68
7.3.210.0090.00916.66
7.3.200.0090.01419.39
7.3.190.0070.01016.34
7.3.180.0060.00916.55
7.3.170.0160.00016.46
7.3.160.0130.00716.59
7.2.330.0100.00716.56
7.2.320.0160.00816.72
7.2.310.0070.01416.60
7.2.300.0070.01016.74
7.2.290.0100.01116.75
7.1.100.0040.00817.77
7.1.70.0000.00717.16
7.1.60.0030.02019.61
7.1.50.0120.01216.98
7.1.00.0000.08022.37
7.0.200.0230.00714.97
7.0.140.0070.07022.00
7.0.90.0030.07319.88
7.0.80.0100.04020.16
7.0.70.0100.08019.91
7.0.60.0100.06319.91
7.0.50.0030.07720.27
7.0.40.0070.08320.00
7.0.30.0100.03720.04
7.0.20.0130.07320.09
7.0.10.0030.05020.03
7.0.00.0030.08719.99
5.6.280.0070.07021.10
5.6.240.0070.04320.70
5.6.230.0130.07320.72
5.6.220.0070.08720.68
5.6.210.0070.03320.68
5.6.200.0070.08721.03
5.6.190.0130.07021.04
5.6.180.0130.07321.04
5.6.170.0030.09021.17
5.6.160.0070.05021.12
5.6.150.0070.03721.06
5.6.140.0100.03321.13
5.6.130.0000.05721.02
5.6.120.0130.05721.08
5.6.110.0070.04720.92
5.6.100.0000.04020.95
5.6.90.0130.07321.12
5.6.80.0070.07720.47
5.6.70.0070.06020.39
5.6.60.0170.07020.32
5.6.50.0200.06720.41
5.6.40.0030.07320.38
5.6.30.0170.06720.41
5.6.20.0100.07320.52
5.6.10.0070.04020.39
5.6.00.0070.04320.39
5.5.380.0030.04320.37
5.5.370.0030.04320.55
5.5.360.0030.04020.34
5.5.350.0070.03320.43
5.5.340.0100.04720.83
5.5.330.0030.04320.77
5.5.320.0030.04320.80
5.5.310.0070.04020.90
5.5.300.0030.06020.64
5.5.290.0070.09020.86
5.5.280.0070.06320.91
5.5.270.0000.08720.88
5.5.260.0070.08020.91
5.5.250.0130.07720.59
5.5.240.0070.07720.16
5.5.230.0070.04720.29
5.5.220.0100.08320.21
5.5.210.0030.07320.31
5.5.200.0200.05720.19
5.5.190.0130.04720.09
5.5.180.0070.06020.18
5.5.160.0070.07720.21
5.5.150.0100.08720.12
5.5.140.0100.07320.11
5.5.130.0100.07720.26
5.5.120.0130.07719.99
5.5.110.0070.04320.26
5.5.100.0000.04720.05
5.5.90.0100.08019.97
5.5.80.0130.05319.95
5.5.70.0130.03720.06
5.5.60.0030.07020.16
5.5.50.0100.07720.08
5.5.40.0170.06020.09
5.5.30.0100.07720.02
5.5.20.0030.08319.95
5.5.10.0130.07320.13
5.5.00.0100.06019.97
5.4.450.0100.03719.41
5.4.440.0100.07319.22
5.4.430.0130.07319.34
5.4.420.0100.03019.20
5.4.410.0000.08319.40
5.4.400.0100.04719.22
5.4.390.0100.07319.21
5.4.380.0000.07718.86
5.4.370.0100.06719.21
5.4.360.0100.08018.85
5.4.350.0030.06018.91
5.4.340.0070.08018.84
5.4.320.0030.08318.99
5.4.310.0070.07019.03
5.4.300.0000.04719.23
5.4.290.0070.08019.02
5.4.280.0070.04318.94
5.4.270.0030.07719.03
5.4.260.0030.04318.84
5.4.250.0070.07019.13
5.4.240.0030.04019.02
5.4.230.0200.06018.89
5.4.220.0100.05319.23
5.4.210.0070.06318.87
5.4.200.0170.06019.15
5.4.190.0000.05718.93
5.4.180.0170.07319.20
5.4.170.0030.07719.22
5.4.160.0170.05719.01
5.4.150.0070.03719.11
5.4.140.0030.04316.39
5.4.130.0100.07316.38
5.4.120.0030.07716.40
5.4.110.0100.05016.34
5.4.100.0070.07016.36
5.4.90.0100.06716.36
5.4.80.0070.04716.35
5.4.70.0100.06716.34
5.4.60.0100.04316.50
5.4.50.0030.05016.21
5.4.40.0100.07016.53
5.4.30.0030.04316.48
5.4.20.0100.06716.41
5.4.10.0070.07316.40
5.4.00.0100.06015.74
5.3.290.0000.05314.69
5.3.280.0030.04314.61
5.3.270.0070.04314.60
5.3.260.0070.04714.72
5.3.250.0030.06014.58
5.3.240.0130.05314.64
5.3.230.0030.04714.66
5.3.220.0070.06714.65
5.3.210.0070.04714.68
5.3.200.0070.06014.49
5.3.190.0070.05314.69
5.3.180.0000.07014.54
5.3.170.0030.08014.57
5.3.160.0030.08014.62
5.3.150.0070.05714.68
5.3.140.0070.05314.63
5.3.130.0030.08014.58
5.3.120.0100.06014.64
5.3.110.0070.06714.61
5.3.100.0030.05014.06
5.3.90.0100.07313.94
5.3.80.0170.05014.08
5.3.70.0000.05014.12
5.3.60.0100.06714.05
5.3.50.0070.07314.07
5.3.40.0030.05713.85
5.3.30.0030.06014.00
5.3.20.0100.07713.76
5.3.10.0030.05013.70
5.3.00.0030.05713.54
5.2.170.0030.07711.18
5.2.160.0030.05711.24
5.2.150.0070.04011.15
5.2.140.0030.06311.20
5.2.130.0030.04011.09
5.2.120.0100.02711.01
5.2.110.0000.03711.16
5.2.100.0030.05711.16
5.2.90.0030.07311.13
5.2.80.0100.03010.96
5.2.70.0000.06711.03
5.2.60.0130.05011.17
5.2.50.0100.05311.07
5.2.40.0070.04011.11
5.2.30.0000.03310.99
5.2.20.0100.05310.82
5.2.10.0070.06010.92
5.2.00.0100.03710.78
5.1.60.0000.06010.11
5.1.50.0100.04710.05
5.1.40.0070.0539.82
5.1.30.0070.04310.40
5.1.20.0000.06010.36
5.1.10.0030.05310.06
5.1.00.0000.05710.15
5.0.50.0100.0408.55
5.0.40.0030.0238.40
5.0.30.0100.0378.07
5.0.20.0030.0438.09
5.0.10.0070.0308.27
5.0.00.0030.0678.05
4.4.90.0030.0337.14
4.4.80.0000.0307.14
4.4.70.0000.0237.14
4.4.60.0100.0207.14
4.4.50.0030.0337.14
4.4.40.0030.0537.14
4.4.30.0000.0307.14
4.4.20.0000.0377.14
4.4.10.0030.0307.14
4.4.00.0030.0377.14
4.3.110.0030.0337.14
4.3.100.0030.0407.14
4.3.90.0000.0407.14
4.3.80.0030.0577.14
4.3.70.0030.0307.14
4.3.60.0000.0377.14
4.3.50.0030.0337.14
4.3.40.0000.0507.14
4.3.30.0030.0307.14
4.3.20.0000.0277.14
4.3.10.0000.0377.14
4.3.00.0000.0377.14

preferences:
53.76 ms | 401 KiB | 5 Q