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<?php $value = 2; $array = [1, 2, 3]; array_unshift($array,$value); // prepend a duplicate var_export(array_unique($array)); // kill the original echo "\n---\n"; $value = 2; $array = [1, 2, 3]; var_export(array_unique(array_merge([$value],$array))); // prepend a duplicate, kill the original
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/krc2G
function name:  (null)
number of ops:  27
compiled vars:  !0 = $value, !1 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 2
    3     1        ASSIGN                                                   !1, <array>
    4     2        INIT_FCALL                                               'array_unshift'
          3        SEND_REF                                                 !1
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                                 
    5     6        INIT_FCALL                                               'var_export'
          7        INIT_FCALL                                               'array_unique'
          8        SEND_VAR                                                 !1
          9        DO_ICALL                                         $5      
         10        SEND_VAR                                                 $5
         11        DO_ICALL                                                 
    7    12        ECHO                                                     '%0A---%0A'
    9    13        ASSIGN                                                   !0, 2
   10    14        ASSIGN                                                   !1, <array>
   11    15        INIT_FCALL                                               'var_export'
         16        INIT_FCALL                                               'array_unique'
         17        INIT_FCALL                                               'array_merge'
         18        INIT_ARRAY                                       ~9      !0
         19        SEND_VAL                                                 ~9
         20        SEND_VAR                                                 !1
         21        DO_ICALL                                         $10     
         22        SEND_VAR                                                 $10
         23        DO_ICALL                                         $11     
         24        SEND_VAR                                                 $11
         25        DO_ICALL                                                 
         26      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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