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<?php $str = "{three/fifteen/one hundred} this is the first random number, and this is the second, {two/four}"; echo preg_replace_callback('~\{([^{}]*)}~', function ($x) { return array_rand(array_flip(explode('/', $x[1]))); }, $str);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/GVFnm
function name:  (null)
number of ops:  9
compiled vars:  !0 = $str
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%7Bthree%2Ffifteen%2Fone+hundred%7D+this+is+the+first+random+number%2C+and+this+is+the+second%2C+%7Btwo%2Ffour%7D'
    4     1        INIT_FCALL                                               'preg_replace_callback'
          2        SEND_VAL                                                 '%7E%5C%7B%28%5B%5E%7B%7D%5D%2A%29%7D%7E'
          3        DECLARE_LAMBDA_FUNCTION                          ~2      [0]
    6     4        SEND_VAL                                                 ~2
          5        SEND_VAR                                                 !0
    4     6        DO_ICALL                                         $3      
    6     7        ECHO                                                     $3
          8      > RETURN                                                   1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/GVFnm
function name:  {closure}
number of ops:  14
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV                                             !0      
    5     1        INIT_FCALL                                               'array_rand'
          2        INIT_FCALL                                               'array_flip'
          3        INIT_FCALL                                               'explode'
          4        SEND_VAL                                                 '%2F'
          5        FETCH_DIM_R                                      ~1      !0, 1
          6        SEND_VAL                                                 ~1
          7        DO_ICALL                                         $2      
          8        SEND_VAR                                                 $2
          9        DO_ICALL                                         $3      
         10        SEND_VAR                                                 $3
         11        DO_ICALL                                         $4      
         12      > RETURN                                                   $4
    6    13*     > RETURN                                                   null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.0.0


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