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<?php function get(&$var, $default = null) { return isset($var) ? $var : $default; } $arr = array( "a" => array("a1" => "av1", "a2" => "av2"), "b" => null ); var_dump($arr); $v = get($arr["b"]["b1"]); var_dump($arr);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/sdN2t
function name:  (null)
number of ops:  14
compiled vars:  !0 = $arr, !1 = $v
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   ASSIGN                                                   !0, <array>
   11     1        INIT_FCALL                                               'var_dump'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                                 
   13     4        INIT_FCALL                                               'get'
          5        FETCH_DIM_W                                      $4      !0, 'b'
          6        FETCH_DIM_W                                      $5      $4, 'b1'
          7        SEND_REF                                                 $5
          8        DO_FCALL                                      0  $6      
          9        ASSIGN                                                   !1, $6
   14    10        INIT_FCALL                                               'var_dump'
         11        SEND_VAR                                                 !0
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Function get:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 4, Position 2 = 6
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 7
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/sdN2t
function name:  get
number of ops:  9
compiled vars:  !0 = $var, !1 = $default
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
          1        RECV_INIT                                        !1      null
    4     2        ISSET_ISEMPTY_CV                                         !0
          3      > JMPZ                                                     ~2, ->6
          4    >   QM_ASSIGN                                        ~3      !0
          5      > JMP                                                      ->7
          6    >   QM_ASSIGN                                        ~3      !1
          7    > > RETURN                                                   ~3
    5     8*     > RETURN                                                   null

End of function get

Generated using Vulcan Logic Dumper, using php 8.0.0


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