3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $url = 'http://mysite.com/hello/world?look_at=me'; $query = parse_str(parse_url($url, PHP_URL_QUERY)); ?> <a href="?<?= http_build_query(array_merge($query, ['category' => 'val'])) ?>">Категория каталога</a> <a href="?<?= http_build_query(array_merge($query, ['sort' => 'price'])) ?>">Сортировать по цене</a>
Finding entry points
Branch analysis from position: 0
Jump found. (Code = 62) Position 1 = -2
filename:       /in/EU8vn
function name:  (null)
number of ops:  29
compiled vars:  !0 = $url, !1 = $query
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   2     0  E >   ASSIGN                                                   !0, 'http%3A%2F%2Fmysite.com%2Fhello%2Fworld%3Flook_at%3Dme'
   3     1        INIT_FCALL                                               'parse_str'
         2        INIT_FCALL                                               'parse_url'
         3        SEND_VAR                                                 !0
         4        SEND_VAL                                                 6
         5        DO_ICALL                                         $3      
         6        SEND_VAR                                                 $3
         7        DO_ICALL                                         $4      
         8        ASSIGN                                                   !1, $4
   5     9        ECHO                                                     '%3Ca+href%3D%22%3F'
        10        INIT_FCALL                                               'http_build_query'
        11        INIT_FCALL                                               'array_merge'
        12        SEND_VAR                                                 !1
        13        SEND_VAL                                                 <array>
        14        DO_ICALL                                         $6      
        15        SEND_VAR                                                 $6
        16        DO_ICALL                                         $7      
        17        ECHO                                                     $7
        18        ECHO                                                     '%22%3E%D0%9A%D0%B0%D1%82%D0%B5%D0%B3%D0%BE%D1%80%D0%B8%D1%8F+%D0%BA%D0%B0%D1%82%D0%B0%D0%BB%D0%BE%D0%B3%D0%B0%3C%2Fa%3E%0A%3Ca+href%3D%22%3F'
   6    19        INIT_FCALL                                               'http_build_query'
        20        INIT_FCALL                                               'array_merge'
        21        SEND_VAR                                                 !1
        22        SEND_VAL                                                 <array>
        23        DO_ICALL                                         $8      
        24        SEND_VAR                                                 $8
        25        DO_ICALL                                         $9      
        26        ECHO                                                     $9
        27        ECHO                                                     '%22%3E%D0%A1%D0%BE%D1%80%D1%82%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D1%82%D1%8C+%D0%BF%D0%BE+%D1%86%D0%B5%D0%BD%D0%B5%3C%2Fa%3E'
        28      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.3.0