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<?php $strings = [ 'he said "hello worLd"', 'he sAId "καλημέρα ΚΌΣΜΕ" to me', "Ryan's shirts are verY large", ]; var_export( preg_replace_callback('/[^"]+/', fn($m) => mb_convert_case($m[0], MB_CASE_TITLE, "UTF-8"), $strings) );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8BRIp
function name:  (null)
number of ops:  11
compiled vars:  !0 = $strings
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    8     1        INIT_FCALL                                               'var_export'
    9     2        INIT_FCALL                                               'preg_replace_callback'
          3        SEND_VAL                                                 '%2F%5B%5E%22%5D%2B%2F'
          4        DECLARE_LAMBDA_FUNCTION                          ~2      [0]
          5        SEND_VAL                                                 ~2
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                         $3      
          8        SEND_VAR                                                 $3
    8     9        DO_ICALL                                                 
   10    10      > 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/8BRIp
function name:  {closure}
number of ops:  9
compiled vars:  !0 = $m
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   RECV                                             !0      
          1        INIT_FCALL                                               'mb_convert_case'
          2        FETCH_DIM_R                                      ~1      !0, 0
          3        SEND_VAL                                                 ~1
          4        SEND_VAL                                                 2
          5        SEND_VAL                                                 'UTF-8'
          6        DO_ICALL                                         $2      
          7      > RETURN                                                   $2
          8*     > RETURN                                                   null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.0.0


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