3v4l.org

run code in 300+ PHP versions simultaneously
<?php $subject = 'uihdawhdhawndkunawkudnkuawndkuaukwdkuawbdukahkubdkuawkudb'; $prefs = array( 'scheme' => 'Q','input-charset' => 'UTF-8','output-charset' => 'UTF-8', 'line-length' => 76,'line-break-chars' => "\r\n",);echo 'Original: ' . $subject . PHP_EOL;$enc = iconv_mime_encode( 'Subject', $subject, $prefs );var_dump( $enc );  // will show bool(false) ?>

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)
5.4.320.0080.04812.50
5.4.310.0060.04012.49
5.4.300.0030.03912.50
5.4.290.0090.03512.49
5.4.280.0070.03412.39
5.4.270.0050.04212.39
5.4.260.0070.04012.39
5.4.250.0060.03712.39
5.4.240.0060.03612.39
5.4.230.0050.03912.38
5.4.220.0080.03412.38
5.4.210.0080.03412.38
5.4.200.0070.04112.38
5.4.190.0060.03912.38
5.4.180.0050.04212.38
5.4.170.0070.03612.39
5.4.160.0090.04712.38
5.4.150.0100.03812.38
5.4.140.0080.03712.07
5.4.130.0060.03812.05
5.4.120.0050.03612.01
5.4.110.0040.03712.01
5.4.100.0040.03712.01
5.4.90.0040.03912.01
5.4.80.0040.03912.01
5.4.70.0080.03912.01
5.4.60.0070.03412.00
5.4.50.0020.04112.01
5.4.40.0030.03811.99
5.4.30.0070.03512.00
5.4.20.0060.03411.99
5.4.10.0080.03211.99
5.4.00.0070.03811.49
5.3.290.0050.04112.80
5.3.280.0090.03812.71
5.3.270.0070.03912.72
5.3.260.0040.04412.72
5.3.250.0040.04012.72
5.3.240.0050.03912.72
5.3.230.0070.03712.71
5.3.220.0060.03712.68
5.3.210.0060.03912.68
5.3.200.0080.03512.68
5.3.190.0050.03812.68
5.3.180.0050.04112.67
5.3.170.0070.03612.67
5.3.160.0070.03712.67
5.3.150.0040.04112.68
5.3.140.0080.03512.66
5.3.130.0030.04112.66
5.3.120.0050.04012.66
5.3.110.0100.03512.66
5.3.100.0050.03812.12
5.3.90.0070.03612.08
5.3.80.0060.03712.08
5.3.70.0060.03712.08
5.3.60.0070.03612.06
5.3.50.0120.03412.00
5.3.40.0050.03812.00
5.3.30.0110.03111.95
5.3.20.0020.03911.72
5.3.10.0050.03511.70
5.3.00.0050.03911.68
5.2.170.0070.0299.18
5.2.160.0070.0329.18
5.2.150.0070.0309.18
5.2.140.0050.0349.18
5.2.130.0060.0299.14
5.2.120.0060.0279.14
5.2.110.0040.0329.14
5.2.100.0050.0319.14
5.2.90.0020.0339.14
5.2.80.0020.0359.14
5.2.70.0060.0309.14
5.2.60.0070.0319.09
5.2.50.0080.0299.06
5.2.40.0070.0309.04
5.2.30.0060.0339.02
5.2.20.0060.0309.00
5.2.10.0070.0288.92
5.2.00.0040.0348.78
5.1.60.0070.0228.07
5.1.50.0040.0268.06
5.1.40.0030.0268.04
5.1.30.0030.0288.40
5.1.20.0010.0308.41
5.1.10.0040.0278.14
5.1.00.0040.0338.14
5.0.50.0030.0216.62
5.0.40.0030.0206.48
5.0.30.0060.0346.29
5.0.20.0030.0206.26
5.0.10.0040.0196.24
5.0.00.0050.0286.23
4.4.90.0040.0144.78
4.4.80.0020.0164.76
4.4.70.0030.0224.75
4.4.60.0030.0184.75
4.4.50.0040.0174.77
4.4.40.0010.0264.71
4.4.30.0020.0164.76
4.4.20.0060.0154.85
4.4.10.0000.0224.85
4.4.00.0020.0264.76
4.3.110.0040.0164.67
4.3.100.0040.0184.67
4.3.90.0020.0154.63
4.3.80.0000.0264.58
4.3.70.0040.0134.63
4.3.60.0020.0164.63
4.3.50.0040.0144.63
4.3.40.0010.0264.54
4.3.30.0030.0193.29
4.3.20.0010.0163.25
4.3.10.0030.0143.22
4.3.00.0000.0237.82

preferences:
140.01 ms | 1394 KiB | 7 Q