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<?php function sql(callable $expr): array { $placeholder = new class { public function __toString(): string { return '?'; } }; $expr = Closure::fromCallable($expr); $expr = Closure::bind($expr, $placeholder); $params = []; $generator = $expr(); while ($generator->valid()) { $params[] = $generator->current(); // Get the value from "yield" $generator->send('this'); // Insert placeholder } return [$generator->getReturn(), $params]; } [$query, $params] = sql(fn() => "SELECT * FROM users WHERE id = ${yield 42} OR id = ${yield 0xDEADBEEF}"); var_dump( $query, $params, );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8lPf3
function name:  (null)
number of ops:  14
compiled vars:  !0 = $query, !1 = $params
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   24     0  E >   INIT_FCALL                                               'sql'
          1        DECLARE_LAMBDA_FUNCTION                          ~2      [0]
          2        SEND_VAL                                                 ~2
          3        DO_FCALL                                      0  $3      
          4        FETCH_LIST_R                                     $4      $3, 0
          5        ASSIGN                                                   !0, $4
          6        FETCH_LIST_R                                     $6      $3, 1
          7        ASSIGN                                                   !1, $6
          8        FREE                                                     $3
   26     9        INIT_FCALL                                               'var_dump'
   27    10        SEND_VAR                                                 !0
   28    11        SEND_VAR                                                 !1
   26    12        DO_ICALL                                                 
   29    13      > RETURN                                                   1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 161) Position 1 = -2
filename:       /in/8lPf3
function name:  {closure}
number of ops:  11
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   24     0  E >   GENERATOR_CREATE                                         
          1        ROPE_INIT                                     4  ~5      'SELECT+%2A+FROM+users+WHERE+id+%3D+'
          2        YIELD                                            $0      42
          3        FETCH_R                      local               ~1      $0
          4        ROPE_ADD                                      1  ~5      ~5, ~1
          5        ROPE_ADD                                      2  ~5      ~5, '+OR+id+%3D+'
          6        YIELD                                            $2      3735928559
          7        FETCH_R                      local               ~3      $2
          8        ROPE_END                                      3  ~4      ~5, ~3
          9      > GENERATOR_RETURN                                         
         10*     > GENERATOR_RETURN                                         

End of Dynamic Function 0

Function sql:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 26
Branch analysis from position: 26
2 jumps found. (Code = 44) Position 1 = 29, Position 2 = 19
Branch analysis from position: 29
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 19
2 jumps found. (Code = 44) Position 1 = 29, Position 2 = 19
Branch analysis from position: 29
Branch analysis from position: 19
filename:       /in/8lPf3
function name:  sql
number of ops:  37
compiled vars:  !0 = $expr, !1 = $placeholder, !2 = $params, !3 = $generator
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    5     1        DECLARE_ANON_CLASS                               <const ast>   
          2        NEW                                              $5      $4
          3        DO_FCALL                                      0          
          4        ASSIGN                                                   !1, $5
   11     5        INIT_STATIC_METHOD_CALL                                  'Closure', 'fromCallable'
          6        SEND_VAR                                                 !0
          7        DO_FCALL                                      0  $8      
          8        ASSIGN                                                   !0, $8
   12     9        INIT_STATIC_METHOD_CALL                                  'Closure', 'bind'
         10        SEND_VAR                                                 !0
         11        SEND_VAR                                                 !1
         12        DO_FCALL                                      0  $10     
         13        ASSIGN                                                   !0, $10
   14    14        ASSIGN                                                   !2, <array>
   15    15        INIT_DYNAMIC_CALL                                        !0
         16        DO_FCALL                                      0  $13     
         17        ASSIGN                                                   !3, $13
   16    18      > JMP                                                      ->26
   17    19    >   INIT_METHOD_CALL                                         !3, 'current'
         20        DO_FCALL                                      0  $16     
         21        ASSIGN_DIM                                               !2
         22        OP_DATA                                                  $16
   18    23        INIT_METHOD_CALL                                         !3, 'send'
         24        SEND_VAL_EX                                              'this'
         25        DO_FCALL                                      0          
   16    26    >   INIT_METHOD_CALL                                         !3, 'valid'
         27        DO_FCALL                                      0  $18     
         28      > JMPNZ                                                    $18, ->19
   21    29    >   INIT_METHOD_CALL                                         !3, 'getReturn'
         30        DO_FCALL                                      0  $19     
         31        INIT_ARRAY                                       ~20     $19
         32        ADD_ARRAY_ELEMENT                                ~20     !2
         33        VERIFY_RETURN_TYPE                                       ~20
         34      > RETURN                                                   ~20
   22    35*       VERIFY_RETURN_TYPE                                       
         36*     > RETURN                                                   null

End of function sql

Class class@anonymous:
Function __tostring:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8lPf3
function name:  __toString
number of ops:  3
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E > > RETURN                                                   '%3F'
    8     1*       VERIFY_RETURN_TYPE                                       
          2*     > RETURN                                                   null

End of function __tostring

End of class class@anonymous.

Generated using Vulcan Logic Dumper, using php 8.0.0


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