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<?php $hola = null; echo $hola??'no definido'; $hola = false; var_dump( $hola??'no definido' );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Hd8Wq
function name:  (null)
number of ops:  11
compiled vars:  !0 = $hola
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, null
    5     1        COALESCE                                         ~2      !0
          2        QM_ASSIGN                                        ~2      'no+definido'
          3        ECHO                                                     ~2
    7     4        ASSIGN                                                   !0, <false>
    9     5        INIT_FCALL                                               'var_dump'
          6        COALESCE                                         ~4      !0
          7        QM_ASSIGN                                        ~4      'no+definido'
          8        SEND_VAL                                                 ~4
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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