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<?php /** * Re-order the characters from $T using the order of characters in $O. * * @param string $T the string to re-order * @param string $O the string that specifies the desired order * @return string the re-ordered $T */ function reorder($T, $O) { // Convert $T and $O to arrays of characters $t = str_split($T); $o = str_split($O); // Compute the index of each character from $T in $O // Use -1 for characters that do not appear in $O $m = array_map(function($x) use ($o) { $p = array_search($x, $o); return ($p === FALSE) ? -1 : $p; }, $t ); // Sort $m and $t simultaneously; $t will follow the changes applied to $m array_multisort($m, $t); // Join the sorted characters of $T back and return as string return implode('', $t); } $order = 'eloh'; echo('hello => '.reorder('hello', $order)."\n"); echo('help => '.reorder('help', $order)."\n");
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/vnoC1
function name:  (null)
number of ops:  16
compiled vars:  !0 = $order
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   31     0  E >   ASSIGN                                                       !0, 'eloh'
   32     1        INIT_FCALL                                                   'reorder'
          2        SEND_VAL                                                     'hello'
          3        SEND_VAR                                                     !0
          4        DO_FCALL                                          0  $2      
          5        CONCAT                                               ~3      'hello+%3D%3E+', $2
          6        CONCAT                                               ~4      ~3, '%0A'
          7        ECHO                                                         ~4
   33     8        INIT_FCALL                                                   'reorder'
          9        SEND_VAL                                                     'help'
         10        SEND_VAR                                                     !0
         11        DO_FCALL                                          0  $5      
         12        CONCAT                                               ~6      'help++%3D%3E+', $5
         13        CONCAT                                               ~7      ~6, '%0A'
         14        ECHO                                                         ~7
         15      > RETURN                                                       1

Function reorder:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/vnoC1
function name:  reorder
number of ops:  24
compiled vars:  !0 = $T, !1 = $O, !2 = $t, !3 = $o, !4 = $m
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    9     0  E >   RECV                                                 !0      
          1        RECV                                                 !1      
   12     2        INIT_FCALL                                                   'str_split'
          3        SEND_VAR                                                     !0
          4        DO_ICALL                                             $5      
          5        ASSIGN                                                       !2, $5
   13     6        INIT_FCALL                                                   'str_split'
          7        SEND_VAR                                                     !1
          8        DO_ICALL                                             $7      
          9        ASSIGN                                                       !3, $7
   17    10        INIT_FCALL                                                   'array_map'
         11        DECLARE_LAMBDA_FUNCTION                              ~9      [0]
         12        BIND_LEXICAL                                                 ~9, !3
   20    13        SEND_VAL                                                     ~9
   21    14        SEND_VAR                                                     !2
   17    15        DO_ICALL                                             $10     
         16        ASSIGN                                                       !4, $10
   25    17        INIT_FCALL                                                   'array_multisort'
         18        SEND_REF                                                     !4
         19        SEND_REF                                                     !2
         20        DO_ICALL                                                     
   28    21        FRAMELESS_ICALL_2                implode             ~13     '', !2
         22      > RETURN                                                       ~13
   29    23*     > RETURN                                                       null


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 9, Position 2 = 11
Branch analysis from position: 9
1 jumps found. (Code = 42) Position 1 = 12
Branch analysis from position: 12
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/vnoC1
function name:  {closure:reorder():17}
number of ops:  14
compiled vars:  !0 = $x, !1 = $o, !2 = $p
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   17     0  E >   RECV                                                 !0      
          1        BIND_STATIC                                                  !1
   18     2        INIT_FCALL                                                   'array_search'
          3        SEND_VAR                                                     !0
          4        SEND_VAR                                                     !1
          5        DO_ICALL                                             $3      
          6        ASSIGN                                                       !2, $3
   19     7        TYPE_CHECK                                        4          !2
          8      > JMPZ                                                         ~5, ->11
          9    >   QM_ASSIGN                                            ~6      -1
         10      > JMP                                                          ->12
         11    >   QM_ASSIGN                                            ~6      !2
         12    > > RETURN                                                       ~6
   20    13*     > RETURN                                                       null

End of Dynamic Function 0

End of function reorder

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