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<?php $d = distance([2,4], [26,9]); echo 'distance is : ' .$d; function distance( $p1=array(), $p2=array()) { $x1 = $p1[0]; $x2 = $p2[0]; $y1 = $p1[1]; $y2 = $p2[1]; echo "y1 is : $y1\n"; echo "y2 is : $y2\n"; echo "x1 is : $x1\n"; echo "x2 is : $x2\n"; $p1 = ($x1 - $x2); $p2 = ($y1 - $y2); $distance = sqrt(( $p1 + $p2 )); /** $points = [$p1, $p2]; $distance = array_sum($points); $distance = sqrt(($x1 - $x2) + ($y1 - $y2))**2; */ //$distance = hypot($p1, $p2); return $distance; }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Hlaf8
function name:  (null)
number of ops:  8
compiled vars:  !0 = $d
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL_BY_NAME                                       'distance'
          1        SEND_VAL_EX                                              <array>
          2        SEND_VAL_EX                                              <array>
          3        DO_FCALL                                      0  $1      
          4        ASSIGN                                                   !0, $1
    5     5        CONCAT                                           ~3      'distance+is+%3A+', !0
          6        ECHO                                                     ~3
   37     7      > RETURN                                                   1

Function distance:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Hlaf8
function name:  distance
number of ops:  37
compiled vars:  !0 = $p1, !1 = $p2, !2 = $x1, !3 = $x2, !4 = $y1, !5 = $y2, !6 = $distance
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   RECV_INIT                                        !0      <array>
          1        RECV_INIT                                        !1      <array>
   11     2        FETCH_DIM_R                                      ~7      !0, 0
          3        ASSIGN                                                   !2, ~7
   12     4        FETCH_DIM_R                                      ~9      !1, 0
          5        ASSIGN                                                   !3, ~9
   14     6        FETCH_DIM_R                                      ~11     !0, 1
          7        ASSIGN                                                   !4, ~11
   15     8        FETCH_DIM_R                                      ~13     !1, 1
          9        ASSIGN                                                   !5, ~13
   17    10        ROPE_INIT                                     3  ~16     'y1+is+%3A+'
         11        ROPE_ADD                                      1  ~16     ~16, !4
         12        ROPE_END                                      2  ~15     ~16, '%0A'
         13        ECHO                                                     ~15
   18    14        ROPE_INIT                                     3  ~19     'y2+is+%3A+'
         15        ROPE_ADD                                      1  ~19     ~19, !5
         16        ROPE_END                                      2  ~18     ~19, '%0A'
         17        ECHO                                                     ~18
   19    18        ROPE_INIT                                     3  ~22     'x1+is+%3A+'
         19        ROPE_ADD                                      1  ~22     ~22, !2
         20        ROPE_END                                      2  ~21     ~22, '%0A'
         21        ECHO                                                     ~21
   20    22        ROPE_INIT                                     3  ~25     'x2+is+%3A+'
         23        ROPE_ADD                                      1  ~25     ~25, !3
         24        ROPE_END                                      2  ~24     ~25, '%0A'
         25        ECHO                                                     ~24
   23    26        SUB                                              ~27     !2, !3
         27        ASSIGN                                                   !0, ~27
   24    28        SUB                                              ~29     !4, !5
         29        ASSIGN                                                   !1, ~29
   25    30        INIT_FCALL                                               'sqrt'
         31        ADD                                              ~31     !0, !1
         32        SEND_VAL                                                 ~31
         33        DO_ICALL                                         $32     
         34        ASSIGN                                                   !6, $32
   36    35      > RETURN                                                   !6
   37    36*     > RETURN                                                   null

End of function distance

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