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<?php class ReferenceChecker { function __construct($starter = "AWB0") { $this->starter = $starter; } function check($reference) { return $this->startsWith($reference, $this->starter); } private function startsWith($haystack, $needle, $start = 0) { return strpos($haystack, $needle) === $start; } } $checker = new ReferenceChecker; $subject = "AWB012345"; $result = $checker->check($subject); var_dump($result); $subject = "12345"; $result = $checker->check($subject); var_dump($result);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/aZsfV
function name:  (null)
number of ops:  20
compiled vars:  !0 = $checker, !1 = $subject, !2 = $result
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   17     0  E >   NEW                                              $3      'ReferenceChecker'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $3
   19     3        ASSIGN                                                   !1, 'AWB012345'
   20     4        INIT_METHOD_CALL                                         !0, 'check'
          5        SEND_VAR_EX                                              !1
          6        DO_FCALL                                      0  $7      
          7        ASSIGN                                                   !2, $7
   21     8        INIT_FCALL                                               'var_dump'
          9        SEND_VAR                                                 !2
         10        DO_ICALL                                                 
   23    11        ASSIGN                                                   !1, '12345'
   24    12        INIT_METHOD_CALL                                         !0, 'check'
         13        SEND_VAR_EX                                              !1
         14        DO_FCALL                                      0  $11     
         15        ASSIGN                                                   !2, $11
   25    16        INIT_FCALL                                               'var_dump'
         17        SEND_VAR                                                 !2
         18        DO_ICALL                                                 
         19      > RETURN                                                   1

Class ReferenceChecker:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/aZsfV
function name:  __construct
number of ops:  4
compiled vars:  !0 = $starter
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV_INIT                                        !0      'AWB0'
    5     1        ASSIGN_OBJ                                               'starter'
          2        OP_DATA                                                  !0
    6     3      > RETURN                                                   null

End of function __construct

Function check:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/aZsfV
function name:  check
number of ops:  9
compiled vars:  !0 = $reference
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   RECV                                             !0      
    9     1        INIT_METHOD_CALL                                         'startsWith'
          2        SEND_VAR_EX                                              !0
          3        CHECK_FUNC_ARG                                           
          4        FETCH_OBJ_FUNC_ARG                               $1      'starter'
          5        SEND_FUNC_ARG                                            $1
          6        DO_FCALL                                      0  $2      
          7      > RETURN                                                   $2
   10     8*     > RETURN                                                   null

End of function check

Function startswith:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/aZsfV
function name:  startsWith
number of ops:  10
compiled vars:  !0 = $haystack, !1 = $needle, !2 = $start
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   12     0  E >   RECV                                             !0      
          1        RECV                                             !1      
          2        RECV_INIT                                        !2      0
   13     3        INIT_FCALL                                               'strpos'
          4        SEND_VAR                                                 !0
          5        SEND_VAR                                                 !1
          6        DO_ICALL                                         $3      
          7        IS_IDENTICAL                                     ~4      !2, $3
          8      > RETURN                                                   ~4
   14     9*     > RETURN                                                   null

End of function startswith

End of class ReferenceChecker.

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