3v4l.org

run code in 300+ PHP versions simultaneously
<?php $original = "=?UTF-8?Q?=E3=80=8E=E3=80=90=E5=A4=96=E8=B3=87=E7=B3=BB=E6=88=A6=E7=95=A5=E3=82=B3=E3=83=B3=E3=82=B5=E3=83=AB=E3=81=8C=E9=9B=86=E7=B5=90=E3=80=91=E3=83=88=E3=83=83=E3=83=97=E3=82=B3=E3=83=B3=E3=82=B5=E3=83=AB=E3=82=BF=E3=83=B3=E3=83=88=E3=81=A8=E8=A9=B1=E3=81=9B=E3=82=8B=E3=82=B3=E3=83=B3=E3=82=B5=E3=83=AB=E6=A5=AD=E7=95=8C=E7=A0=94=E7=A9=B6=E3=82=BB=E3=83=9F=E3=83=8A=E3=83=BC=E3=80=8F=E3=81=B8=E3=81=AE=E3=82=A8=E3=83=B3=E3=83=88=E3=83=AA=E3=83=BC=E3=81=82=E3=82=8A=E3=81=8C=E3=81=A8=E3=81=86=E3=81=94=E3=81=96=E3=81=84=E3=81=BE=E3=81=97=E3=81=9F=E3=80=82?="; $decoded = iconv_mime_decode($original, ICONV_MIME_DECODE_STRICT, 'utf-8'); $prefs = array('input-charset' => 'UTF-8', 'output-charset' => 'UTF-8', 'scheme' => 'Q', 'line-length' => 1000); $encoded = iconv_mime_encode('Subject', $decoded, $prefs); list($_, $encoded) = explode(' ', $encoded, 2); echo 'Before: ' . strlen($original) . ', After: ' . strlen($encoded) . "\n"; ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/XZmOA
function name:  (null)
number of ops:  33
compiled vars:  !0 = $original, !1 = $decoded, !2 = $prefs, !3 = $encoded, !4 = $_
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '%3D%3FUTF-8%3FQ%3F%3DE3%3D80%3D8E%3DE3%3D80%3D90%3DE5%3DA4%3D96%3DE8%3DB3%3D87%3DE7%3DB3%3DBB%3DE6%3D88%3DA6%3DE7%3D95%3DA5%3DE3%3D82%3DB3%3DE3%3D83%3DB3%3DE3%3D82%3DB5%3DE3%3D83%3DAB%3DE3%3D81%3D8C%3DE9%3D9B%3D86%3DE7%3DB5%3D90%3DE3%3D80%3D91%3DE3%3D83%3D88%3DE3%3D83%3D83%3DE3%3D83%3D97%3DE3%3D82%3DB3%3DE3%3D83%3DB3%3DE3%3D82%3DB5%3DE3%3D83%3DAB%3DE3%3D82%3DBF%3DE3%3D83%3DB3%3DE3%3D83%3D88%3DE3%3D81%3DA8%3DE8%3DA9%3DB1%3DE3%3D81%3D9B%3DE3%3D82%3D8B%3DE3%3D82%3DB3%3DE3%3D83%3DB3%3DE3%3D82%3DB5%3DE3%3D83%3DAB%3DE6%3DA5%3DAD%3DE7%3D95%3D8C%3DE7%3DA0%3D94%3DE7%3DA9%3DB6%3DE3%3D82%3DBB%3DE3%3D83%3D9F%3DE3%3D83%3D8A%3DE3%3D83%3DBC%3DE3%3D80%3D8F%3DE3%3D81%3DB8%3DE3%3D81%3DAE%3DE3%3D82%3DA8%3DE3%3D83%3DB3%3DE3%3D83%3D88%3DE3%3D83%3DAA%3DE3%3D83%3DBC%3DE3%3D81%3D82%3DE3%3D82%3D8A%3DE3%3D81%3D8C%3DE3%3D81%3DA8%3DE3%3D81%3D86%3DE3%3D81%3D94%3DE3%3D81%3D96%3DE3%3D81%3D84%3DE3%3D81%3DBE%3DE3%3D81%3D97%3DE3%3D81%3D9F%3DE3%3D80%3D82%3F%3D'
    3     1        INIT_FCALL_BY_NAME                                       'iconv_mime_decode'
          2        SEND_VAR_EX                                              !0
          3        FETCH_CONSTANT                                   ~6      'ICONV_MIME_DECODE_STRICT'
          4        SEND_VAL_EX                                              ~6
          5        SEND_VAL_EX                                              'utf-8'
          6        DO_FCALL                                      0  $7      
          7        ASSIGN                                                   !1, $7
    5     8        ASSIGN                                                   !2, <array>
    6     9        INIT_FCALL_BY_NAME                                       'iconv_mime_encode'
         10        SEND_VAL_EX                                              'Subject'
         11        SEND_VAR_EX                                              !1
         12        SEND_VAR_EX                                              !2
         13        DO_FCALL                                      0  $10     
         14        ASSIGN                                                   !3, $10
    7    15        INIT_FCALL                                               'explode'
         16        SEND_VAL                                                 '+'
         17        SEND_VAR                                                 !3
         18        SEND_VAL                                                 2
         19        DO_ICALL                                         $12     
         20        FETCH_LIST_R                                     $13     $12, 0
         21        ASSIGN                                                   !4, $13
         22        FETCH_LIST_R                                     $15     $12, 1
         23        ASSIGN                                                   !3, $15
         24        FREE                                                     $12
    9    25        STRLEN                                           ~17     !0
         26        CONCAT                                           ~18     'Before%3A+', ~17
         27        CONCAT                                           ~19     ~18, '%2C+After%3A+'
         28        STRLEN                                           ~20     !3
         29        CONCAT                                           ~21     ~19, ~20
         30        CONCAT                                           ~22     ~21, '%0A'
         31        ECHO                                                     ~22
   10    32      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
169.64 ms | 1400 KiB | 15 Q