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<?php $a = array(null); var_dump( empty( $a ) ); //bool(false) var_dump( (bool)$a ); //bool(false) $b = array(false); var_dump( empty( $b ) ); //bool(false) var_dump( (bool)$b ); //bool(false) $c = array(0); var_dump( empty( $c ) ); //bool(false) var_dump( (bool)$c ); //bool(false) $d = array(''); var_dump( empty( $d ) ); //bool(false) var_dump( (bool)$d ); //bool(false) $e = array(); var_dump( empty( $e ) ); //bool(true) var_dump( (bool)$e ); //bool(false)
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Y6X8c
function name:  (null)
number of ops:  46
compiled vars:  !0 = $a, !1 = $b, !2 = $c, !3 = $d, !4 = $e
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        INIT_FCALL                                               'var_dump'
          2        ISSET_ISEMPTY_CV                                 ~6      !0
          3        SEND_VAL                                                 ~6
          4        DO_ICALL                                                 
    5     5        INIT_FCALL                                               'var_dump'
          6        BOOL                                             ~8      !0
          7        SEND_VAL                                                 ~8
          8        DO_ICALL                                                 
    7     9        ASSIGN                                                   !1, <array>
    8    10        INIT_FCALL                                               'var_dump'
         11        ISSET_ISEMPTY_CV                                 ~11     !1
         12        SEND_VAL                                                 ~11
         13        DO_ICALL                                                 
    9    14        INIT_FCALL                                               'var_dump'
         15        BOOL                                             ~13     !1
         16        SEND_VAL                                                 ~13
         17        DO_ICALL                                                 
   11    18        ASSIGN                                                   !2, <array>
   12    19        INIT_FCALL                                               'var_dump'
         20        ISSET_ISEMPTY_CV                                 ~16     !2
         21        SEND_VAL                                                 ~16
         22        DO_ICALL                                                 
   13    23        INIT_FCALL                                               'var_dump'
         24        BOOL                                             ~18     !2
         25        SEND_VAL                                                 ~18
         26        DO_ICALL                                                 
   15    27        ASSIGN                                                   !3, <array>
   16    28        INIT_FCALL                                               'var_dump'
         29        ISSET_ISEMPTY_CV                                 ~21     !3
         30        SEND_VAL                                                 ~21
         31        DO_ICALL                                                 
   17    32        INIT_FCALL                                               'var_dump'
         33        BOOL                                             ~23     !3
         34        SEND_VAL                                                 ~23
         35        DO_ICALL                                                 
   19    36        ASSIGN                                                   !4, <array>
   20    37        INIT_FCALL                                               'var_dump'
         38        ISSET_ISEMPTY_CV                                 ~26     !4
         39        SEND_VAL                                                 ~26
         40        DO_ICALL                                                 
   21    41        INIT_FCALL                                               'var_dump'
         42        BOOL                                             ~28     !4
         43        SEND_VAL                                                 ~28
         44        DO_ICALL                                                 
         45      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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