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<?php $str = 'a,b,c'; $out = array_fill_keys(explode(',', $str), null); var_dump($out);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ll0iP
function name:  (null)
number of ops:  14
compiled vars:  !0 = $str, !1 = $out
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'a%2Cb%2Cc'
    4     1        INIT_FCALL                                               'array_fill_keys'
          2        INIT_FCALL                                               'explode'
          3        SEND_VAL                                                 '%2C'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $3      
          6        SEND_VAR                                                 $3
          7        SEND_VAL                                                 null
          8        DO_ICALL                                         $4      
          9        ASSIGN                                                   !1, $4
    5    10        INIT_FCALL                                               'var_dump'
         11        SEND_VAR                                                 !1
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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