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<?php $data = array('one', 'two', 'three'); $left = '<b>'; $right = '</b>'; echo join("$right, $left", $data) . "<br>"; echo $left . join("$right, $left", $data) . $right;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/gvLH8
function name:  (null)
number of ops:  23
compiled vars:  !0 = $data, !1 = $left, !2 = $right
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    3     1        ASSIGN                                                   !1, '%3Cb%3E'
    4     2        ASSIGN                                                   !2, '%3C%2Fb%3E'
    5     3        INIT_FCALL                                               'join'
          4        ROPE_INIT                                     3  ~7      !2
          5        ROPE_ADD                                      1  ~7      ~7, '%2C+'
          6        ROPE_END                                      2  ~6      ~7, !1
          7        SEND_VAL                                                 ~6
          8        SEND_VAR                                                 !0
          9        DO_ICALL                                         $9      
         10        CONCAT                                           ~10     $9, '%3Cbr%3E'
         11        ECHO                                                     ~10
    6    12        INIT_FCALL                                               'join'
         13        ROPE_INIT                                     3  ~12     !2
         14        ROPE_ADD                                      1  ~12     ~12, '%2C+'
         15        ROPE_END                                      2  ~11     ~12, !1
         16        SEND_VAL                                                 ~11
         17        SEND_VAR                                                 !0
         18        DO_ICALL                                         $14     
         19        CONCAT                                           ~15     !1, $14
         20        CONCAT                                           ~16     ~15, !2
         21        ECHO                                                     ~16
         22      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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