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run code in 500+ PHP versions simultaneously
<?php $a = 1; echo "a++ + a = ", $a++ + $a, "\n"; $a = 1; echo "a + a++ + a = ", $a + $a++ + $a, "\n"; $a = 1; echo "a + a + a++ + a = ", $a + $a + $a++ + $a, "\n";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/fQhgB
function name:  (null)
number of ops:  22
compiled vars:  !0 = $a
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, 1
    4     1        ECHO                                                         'a%2B%2B+%2B+a+%3D+'
          2        POST_INC                                             ~2      !0
          3        ADD                                                  ~3      ~2, !0
          4        ECHO                                                         ~3
          5        ECHO                                                         '%0A'
    6     6        ASSIGN                                                       !0, 1
    7     7        ECHO                                                         'a+%2B+a%2B%2B+%2B+a+%3D+'
          8        POST_INC                                             ~5      !0
          9        ADD                                                  ~6      !0, ~5
         10        ADD                                                  ~7      ~6, !0
         11        ECHO                                                         ~7
         12        ECHO                                                         '%0A'
    9    13        ASSIGN                                                       !0, 1
   10    14        ECHO                                                         'a+%2B+a+%2B+a%2B%2B+%2B+a+%3D+'
         15        ADD                                                  ~9      !0, !0
         16        POST_INC                                             ~10     !0
         17        ADD                                                  ~11     ~9, ~10
         18        ADD                                                  ~12     ~11, !0
         19        ECHO                                                         ~12
         20        ECHO                                                         '%0A'
         21      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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