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<?php $a = array(array('d'), '234', '345', '345'); $b = array('asd'=>array('d'), '234', '345', '346'); var_dump(array_combine($a, $b)); $values = array(array('d')); var_dump(array_filter((array) $values));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/oOXY3
function name:  (null)
number of ops:  18
compiled vars:  !0 = $a, !1 = $b, !2 = $values
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        ASSIGN                                                   !1, <array>
    5     2        INIT_FCALL                                               'var_dump'
          3        INIT_FCALL                                               'array_combine'
          4        SEND_VAR                                                 !0
          5        SEND_VAR                                                 !1
          6        DO_ICALL                                         $5      
          7        SEND_VAR                                                 $5
          8        DO_ICALL                                                 
    8     9        ASSIGN                                                   !2, <array>
    9    10        INIT_FCALL                                               'var_dump'
         11        INIT_FCALL                                               'array_filter'
         12        CAST                                          7  ~8      !2
         13        SEND_VAL                                                 ~8
         14        DO_ICALL                                         $9      
         15        SEND_VAR                                                 $9
         16        DO_ICALL                                                 
         17      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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