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<?php var_dump(parse_url("http://www.realself.com/foo/bar?utm_source=wubba&utm_content=bubba#myhash")); $null = null; print_r(is_null(parse_url("http://example.com", PHP_URL_QUERY))); ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/RgTK0
function name:  (null)
number of ops:  16
compiled vars:  !0 = $null
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'parse_url'
          2        SEND_VAL                                                 'http%3A%2F%2Fwww.realself.com%2Ffoo%2Fbar%3Futm_source%3Dwubba%26utm_content%3Dbubba%23myhash'
          3        DO_ICALL                                         $1      
          4        SEND_VAR                                                 $1
          5        DO_ICALL                                                 
    4     6        ASSIGN                                                   !0, null
    5     7        INIT_FCALL                                               'print_r'
          8        INIT_FCALL                                               'parse_url'
          9        SEND_VAL                                                 'http%3A%2F%2Fexample.com'
         10        SEND_VAL                                                 6
         11        DO_ICALL                                         $4      
         12        TYPE_CHECK                                    2  ~5      $4
         13        SEND_VAL                                                 ~5
         14        DO_ICALL                                                 
    6    15      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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