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<?php $string = 'abc'; var_dump(preg_replace_callback( '/(.)/', function ($m) { static $counter = 1; return 'foo' . $counter++; }, $string ));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/rT5rg
function name:  (null)
number of ops:  11
compiled vars:  !0 = $string
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'abc'
    6     1        INIT_FCALL                                               'var_dump'
          2        INIT_FCALL                                               'preg_replace_callback'
    7     3        SEND_VAL                                                 '%2F%28.%29%2F'
    8     4        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FrT5rg%3A8%240'
   11     5        SEND_VAL                                                 ~2
   12     6        SEND_VAR                                                 !0
          7        DO_ICALL                                         $3      
          8        SEND_VAR                                                 $3
          9        DO_ICALL                                                 
   13    10      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FrT5rg%3A8%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/rT5rg
function name:  {closure}
number of ops:  6
compiled vars:  !0 = $m, !1 = $counter
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   RECV                                             !0      
    9     1        BIND_STATIC                                              !1
   10     2        POST_INC                                         ~2      !1
          3        CONCAT                                           ~3      'foo', ~2
          4      > RETURN                                                   ~3
   11     5*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FrT5rg%3A8%240

Generated using Vulcan Logic Dumper, using php 8.0.0


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