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<?php $url = 'http://www.baidu.com/index.php?a=1&b=2'; var_dump(parse_url($url));
based on sn6fG
Finding entry points
Branch analysis from position: 0
Jump found. Position 1 = -2
filename:       /in/CCYnV
function name:  (null)
number of ops:  8
compiled vars:  !0 = $url
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   3     0  E >   ASSIGN                                                   !0, 'http%3A%2F%2Fwww.baidu.com%2Findex.php%3Fa%3D1%26b%3D2'
   4     1        INIT_FCALL                                               'var_dump'
         2        INIT_FCALL                                               'parse_url'
         3        SEND_VAR                                                 !0
         4        DO_ICALL                                         $2      
         5        SEND_VAR                                                 $2
         6        DO_ICALL                                                 
         7      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.1.0