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<?php class AAA {} $alias = 'BBB'; class_alias('AAA', $alias); var_dump(in_array($alias, get_declared_classes())); var_dump(in_array(strtolower($alias), get_declared_classes()));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ihZiR
function name:  (null)
number of ops:  21
compiled vars:  !0 = $alias
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    5     0  E >   ASSIGN                                                       !0, 'BBB'
    7     1        INIT_FCALL                                                   'class_alias'
          2        SEND_VAL                                                     'AAA'
          3        SEND_VAR                                                     !0
          4        DO_ICALL                                                     
    9     5        INIT_FCALL                                                   'var_dump'
          6        INIT_FCALL                                                   'get_declared_classes'
          7        DO_ICALL                                             $3      
          8        FRAMELESS_ICALL_2                in_array            ~4      !0, $3
          9        SEND_VAL                                                     ~4
         10        DO_ICALL                                                     
   10    11        INIT_FCALL                                                   'var_dump'
         12        INIT_FCALL                                                   'strtolower'
         13        SEND_VAR                                                     !0
         14        DO_ICALL                                             $6      
         15        INIT_FCALL                                                   'get_declared_classes'
         16        DO_ICALL                                             $7      
         17        FRAMELESS_ICALL_2                in_array            ~8      $6, $7
         18        SEND_VAL                                                     ~8
         19        DO_ICALL                                                     
         20      > RETURN                                                       1

Class AAA: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.5.0


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