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)); foreach ($J as &$val) { $val = preg_replace_callback('/\\\\u([0-9a-f]{4})/i', function($matches) { return mb_convert_encoding(pack('H*', $matches[1]), 'UTF-8', 'UTF-16'); }, $val);} 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 = iconv("UTF-8", "ASCII", $Val);//mb_convert_encoding($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)
5.4.320.0100.03612.52
5.4.310.0070.03712.52
5.4.300.0060.03612.53
5.4.290.0050.05312.52
5.4.280.0080.03412.42
5.4.270.0050.03912.41
5.4.260.0060.04012.41
5.4.250.0030.03912.42
5.4.240.0080.03312.41
5.4.230.0060.03712.41
5.4.220.0060.03612.41
5.4.210.0050.03612.41
5.4.200.0130.02812.41
5.4.190.0100.03012.40
5.4.180.0070.03512.41
5.4.170.0060.03612.41
5.4.160.0050.03712.40
5.4.150.0060.03912.40
5.4.140.0040.03812.09
5.4.130.0090.03812.07
5.4.120.0090.03112.04
5.4.110.0080.03212.04
5.4.100.0070.03712.04
5.4.90.0050.03612.04
5.4.80.0070.04112.04
5.4.70.0050.03412.03
5.4.60.0080.04112.03
5.4.50.0030.03712.03
5.4.40.0060.03812.02
5.4.30.0060.03512.01
5.4.20.0050.03612.01
5.4.10.0060.03412.02
5.4.00.0030.03911.51
5.3.290.0060.04012.80
5.3.280.0020.04212.70
5.3.270.0050.03912.72
5.3.260.0070.03812.71
5.3.250.0050.03812.72
5.3.240.0060.03912.72
5.3.230.0040.04612.71
5.3.220.0080.03812.68
5.3.210.0050.04012.68
5.3.200.0050.03812.68
5.3.190.0040.03912.67
5.3.180.0050.04312.68
5.3.170.0040.03812.66
5.3.160.0070.03412.68
5.3.150.0080.03712.67
5.3.140.0030.03812.66
5.3.130.0090.03412.66
5.3.120.0110.03312.66
5.3.110.0040.04112.66
5.3.100.0070.03712.13
5.3.90.0020.03912.11
5.3.80.0050.03512.10
5.3.70.0070.03312.10
5.3.60.0070.03512.09
5.3.50.0040.03712.03
5.3.40.0070.03512.03
5.3.30.0040.03612.00
5.3.20.0070.04311.78
5.3.10.0080.03511.74
5.3.00.0040.03811.73
5.2.170.0040.0329.19
5.2.160.0040.0299.19
5.2.150.0030.0329.18
5.2.140.0050.0369.18
5.2.130.0080.0289.14
5.2.120.0070.0299.14
5.2.110.0140.0339.15
5.2.100.0050.0379.16
5.2.90.0060.0329.15
5.2.80.0060.0299.14
5.2.70.0070.0279.14
5.2.60.0050.0329.10
5.2.50.0040.0309.07
5.2.40.0050.0289.04
5.2.30.0030.0319.02
5.2.20.0050.0299.00
5.2.10.0040.0288.92
5.2.00.0070.0288.79
5.1.60.0050.0238.07
5.1.50.0050.0258.07
5.1.40.0040.0328.05
5.1.30.0040.0308.40
5.1.20.0050.0258.42
5.1.10.0050.0258.15
5.1.00.0080.0228.15
5.0.50.0070.0186.63
5.0.40.0020.0216.49
5.0.30.0030.0336.29
5.0.20.0040.0196.27
5.0.10.0040.0226.25
5.0.00.0050.0296.24
4.4.90.0020.0174.78
4.4.80.0030.0214.75
4.4.70.0030.0154.76
4.4.60.0030.0154.76
4.4.50.0030.0154.77
4.4.40.0010.0274.71
4.4.30.0020.0164.76
4.4.20.0050.0134.84
4.4.10.0000.0184.85
4.4.00.0040.0234.76
4.3.110.0060.0174.66
4.3.100.0030.0144.67
4.3.90.0020.0144.63
4.3.80.0040.0234.58
4.3.70.0030.0134.63
4.3.60.0030.0164.63
4.3.50.0050.0124.62
4.3.40.0060.0264.54
4.3.30.0030.0183.29
4.3.20.0000.0243.27
4.3.10.0020.0153.22
4.3.00.0000.02016.72

preferences:
150.73 ms | 1394 KiB | 7 Q