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<?php function reverse($string) { $substr1 = ""; $substr2 = ""; $strLength = strlen($string); $strLengthHalf = round(strlen($string) / 2); var_dump($strLength); var_dump($strLengthHalf); for ($i = 0; $i < round(strlen($string)/ 2) - 1; $i++) { $substr1 .= $string[$strLength-$i]; $substr2 .= $string[$strLengthHalf - $i]; } var_dump($substr1); var_dump($substr2); return $string = $substr1.$substr2; } var_dump(reverse('12345'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ED2AN
function name:  (null)
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   18     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'reverse'
          2        SEND_VAL                                                 '12345'
          3        DO_FCALL                                      0  $0      
          4        SEND_VAR                                                 $0
          5        DO_ICALL                                                 
          6      > RETURN                                                   1

Function reverse:
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 = 34, Position 2 = 19
Branch analysis from position: 34
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 19
2 jumps found. (Code = 44) Position 1 = 34, Position 2 = 19
Branch analysis from position: 34
Branch analysis from position: 19
filename:       /in/ED2AN
function name:  reverse
number of ops:  44
compiled vars:  !0 = $string, !1 = $substr1, !2 = $substr2, !3 = $strLength, !4 = $strLengthHalf, !5 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV                                             !0      
    3     1        ASSIGN                                                   !1, ''
    4     2        ASSIGN                                                   !2, ''
    5     3        STRLEN                                           ~8      !0
          4        ASSIGN                                                   !3, ~8
    6     5        INIT_FCALL                                               'round'
          6        STRLEN                                           ~10     !0
          7        DIV                                              ~11     ~10, 2
          8        SEND_VAL                                                 ~11
          9        DO_ICALL                                         $12     
         10        ASSIGN                                                   !4, $12
    7    11        INIT_FCALL                                               'var_dump'
         12        SEND_VAR                                                 !3
         13        DO_ICALL                                                 
    8    14        INIT_FCALL                                               'var_dump'
         15        SEND_VAR                                                 !4
         16        DO_ICALL                                                 
    9    17        ASSIGN                                                   !5, 0
         18      > JMP                                                      ->26
   10    19    >   SUB                                              ~17     !3, !5
         20        FETCH_DIM_R                                      ~18     !0, ~17
         21        ASSIGN_OP                                     8          !1, ~18
   11    22        SUB                                              ~20     !4, !5
         23        FETCH_DIM_R                                      ~21     !0, ~20
         24        ASSIGN_OP                                     8          !2, ~21
    9    25        PRE_INC                                                  !5
         26    >   INIT_FCALL                                               'round'
         27        STRLEN                                           ~24     !0
         28        DIV                                              ~25     ~24, 2
         29        SEND_VAL                                                 ~25
         30        DO_ICALL                                         $26     
         31        SUB                                              ~27     $26, 1
         32        IS_SMALLER                                               !5, ~27
         33      > JMPNZ                                                    ~28, ->19
   13    34    >   INIT_FCALL                                               'var_dump'
         35        SEND_VAR                                                 !1
         36        DO_ICALL                                                 
   14    37        INIT_FCALL                                               'var_dump'
         38        SEND_VAR                                                 !2
         39        DO_ICALL                                                 
   15    40        CONCAT                                           ~31     !1, !2
         41        ASSIGN                                           ~32     !0, ~31
         42      > RETURN                                                   ~32
   16    43*     > RETURN                                                   null

End of function reverse

Generated using Vulcan Logic Dumper, using php 8.0.0


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