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<?php $abc = array( 'a' => array('Aron','M'), 'b' => array('Abbey','D'), 'c' => array('Alice','P')); function cmp($a, $b) { $a=array_pop($a); $b=array_pop($b); $res = strcmp($a,$b); if ( $res == 0) { return 0; } return ($res < 0) ? -1 : 1; } usort($abc, "cmp"); foreach ($a as $key => $value) { echo "$key: $value\n"; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 6, Position 2 = 14
Branch analysis from position: 6
2 jumps found. (Code = 78) Position 1 = 7, Position 2 = 14
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 14
filename:       /in/EMWAT
function name:  (null)
number of ops:  16
compiled vars:  !0 = $abc, !1 = $a, !2 = $value, !3 = $key
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
   17     1        INIT_FCALL                                               'usort'
          2        SEND_REF                                                 !0
          3        SEND_VAL                                                 'cmp'
          4        DO_ICALL                                                 
   19     5      > FE_RESET_R                                       $6      !1, ->14
          6    > > FE_FETCH_R                                       ~7      $6, !2, ->14
          7    >   ASSIGN                                                   !3, ~7
   20     8        ROPE_INIT                                     4  ~10     !3
          9        ROPE_ADD                                      1  ~10     ~10, '%3A+'
         10        ROPE_ADD                                      2  ~10     ~10, !2
         11        ROPE_END                                      3  ~9      ~10, '%0A'
         12        ECHO                                                     ~9
   19    13      > JMP                                                      ->6
         14    >   FE_FREE                                                  $6
   21    15      > RETURN                                                   1

Function cmp:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 17, Position 2 = 18
Branch analysis from position: 17
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 18
2 jumps found. (Code = 43) Position 1 = 20, Position 2 = 22
Branch analysis from position: 20
1 jumps found. (Code = 42) Position 1 = 23
Branch analysis from position: 23
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 22
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/EMWAT
function name:  cmp
number of ops:  25
compiled vars:  !0 = $a, !1 = $b, !2 = $res
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   RECV                                             !0      
          1        RECV                                             !1      
    9     2        INIT_FCALL                                               'array_pop'
          3        SEND_REF                                                 !0
          4        DO_ICALL                                         $3      
          5        ASSIGN                                                   !0, $3
   10     6        INIT_FCALL                                               'array_pop'
          7        SEND_REF                                                 !1
          8        DO_ICALL                                         $5      
          9        ASSIGN                                                   !1, $5
   11    10        INIT_FCALL                                               'strcmp'
         11        SEND_VAR                                                 !0
         12        SEND_VAR                                                 !1
         13        DO_ICALL                                         $7      
         14        ASSIGN                                                   !2, $7
   12    15        IS_EQUAL                                                 !2, 0
         16      > JMPZ                                                     ~9, ->18
   13    17    > > RETURN                                                   0
   15    18    >   IS_SMALLER                                               !2, 0
         19      > JMPZ                                                     ~10, ->22
         20    >   QM_ASSIGN                                        ~11     -1
         21      > JMP                                                      ->23
         22    >   QM_ASSIGN                                        ~11     1
         23    > > RETURN                                                   ~11
   16    24*     > RETURN                                                   null

End of function cmp

Generated using Vulcan Logic Dumper, using php 8.0.0


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