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<?php function recursion($a) { if ($a < 20) { echo "$a\n"; recursion($a + 1); } } ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Vc7Ie
function name:  (null)
number of ops:  1
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E > > RETURN                                                   1

Function recursion:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 10
Branch analysis from position: 3
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 10
filename:       /in/Vc7Ie
function name:  recursion
number of ops:  11
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV                                             !0      
    4     1        IS_SMALLER                                               !0, 20
          2      > JMPZ                                                     ~1, ->10
    5     3    >   NOP                                                      
          4        FAST_CONCAT                                      ~2      !0, '%0A'
          5        ECHO                                                     ~2
    6     6        INIT_FCALL_BY_NAME                                       'recursion'
          7        ADD                                              ~3      !0, 1
          8        SEND_VAL_EX                                              ~3
          9        DO_FCALL                                      0          
    8    10    > > RETURN                                                   null

End of function recursion

Generated using Vulcan Logic Dumper, using php 8.0.0


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