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)
5.4.320.0060.03512.52
5.4.310.0100.03712.52
5.4.300.0080.03512.52
5.4.290.0050.04012.52
5.4.280.0040.03712.42
5.4.270.0050.03712.42
5.4.260.0040.03912.42
5.4.250.0040.03912.41
5.4.240.0080.03412.41
5.4.230.0110.03212.41
5.4.220.0060.03912.41
5.4.210.0050.03912.41
5.4.200.0020.04012.41
5.4.190.0080.03912.41
5.4.180.0050.03712.40
5.4.170.0070.03412.41
5.4.160.0070.03512.40
5.4.150.0080.03312.40
5.4.140.0070.03512.09
5.4.130.0030.03812.07
5.4.120.0080.03212.04
5.4.110.0070.03412.03
5.4.100.0080.03312.03
5.4.90.0120.03712.03
5.4.80.0060.03912.03
5.4.70.0030.03812.03
5.4.60.0060.03512.03
5.4.50.0060.03512.04
5.4.40.0050.03612.02
5.4.30.0070.04512.02
5.4.20.0070.03612.01
5.4.10.0060.03612.02
5.4.00.0040.03811.51
5.3.290.0060.04012.80
5.3.280.0100.03412.71
5.3.270.0100.03512.72
5.3.260.0050.04312.72
5.3.250.0090.03812.72
5.3.240.0060.03812.72
5.3.230.0050.03912.71
5.3.220.0090.03512.68
5.3.210.0040.04112.68
5.3.200.0100.03312.68
5.3.190.0140.04512.68
5.3.180.0120.04712.68
5.3.170.0070.04012.67
5.3.160.0080.03512.67
5.3.150.0080.03812.68
5.3.140.0040.04012.66
5.3.130.0060.03912.66
5.3.120.0090.03912.66
5.3.110.0090.04212.66
5.3.100.0060.04312.13
5.3.90.0070.04112.11
5.3.80.0090.03612.10
5.3.70.0060.03812.10
5.3.60.0120.03012.08
5.3.50.0070.03512.04
5.3.40.0070.03512.04
5.3.30.0080.03412.00
5.3.20.0040.03811.78
5.3.10.0010.03911.73
5.3.00.0040.03811.72
5.2.170.0030.0319.18
5.2.160.0040.0299.18
5.2.150.0050.0309.19
5.2.140.0040.0319.18
5.2.130.0030.0309.14
5.2.120.0060.0279.14
5.2.110.0060.0399.14
5.2.100.0050.0289.14
5.2.90.0070.0269.14
5.2.80.0070.0289.14
5.2.70.0050.0309.14
5.2.60.0060.0299.09
5.2.50.0080.0269.06
5.2.40.0040.0309.04
5.2.30.0050.0309.02
5.2.20.0040.0349.00
5.2.10.0090.0268.92
5.2.00.0070.0278.79
5.1.60.0100.0188.07
5.1.50.0050.0248.07
5.1.40.0050.0238.05
5.1.30.0060.0248.40
5.1.20.0020.0318.42
5.1.10.0060.0278.15
5.1.00.0070.0238.15
5.0.50.0030.0216.62
5.0.40.0030.0196.49
5.0.30.0070.0286.30
5.0.20.0020.0206.27
5.0.10.0070.0166.25
5.0.00.0030.0316.24
4.4.90.0030.0174.78
4.4.80.0060.0164.75
4.4.70.0030.0164.76
4.4.60.0010.0214.75
4.4.50.0030.0204.77
4.4.40.0040.0274.71
4.4.30.0010.0214.76
4.4.20.0030.0204.84
4.4.10.0010.0174.85
4.4.00.0030.0254.75
4.3.110.0040.0144.66
4.3.100.0020.0154.66
4.3.90.0030.0144.63
4.3.80.0040.0254.58
4.3.70.0020.0144.63
4.3.60.0030.0144.63
4.3.50.0040.0214.63
4.3.40.0040.0234.53
4.3.30.0030.0153.29
4.3.20.0030.0153.27
4.3.10.0040.0183.22
4.3.00.0070.01316.72

preferences:
141.07 ms | 1394 KiB | 7 Q