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<?php // First script $a = 1; echo $a + $a++; // may print either 2 or 3 => Finally, no, it always print 3 echo "\n"; // Second script $i = 1; $array[$i] = $i++; // may set either index 1 or 2 => Same here, array will always contain index 2 and value 1 var_export($array);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/EUknn
function name:  (null)
number of ops:  13
compiled vars:  !0 = $a, !1 = $i, !2 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   ASSIGN                                                   !0, 1
    5     1        POST_INC                                         ~4      !0
          2        ADD                                              ~5      !0, ~4
          3        ECHO                                                     ~5
    6     4        ECHO                                                     '%0A'
    9     5        ASSIGN                                                   !1, 1
   10     6        POST_INC                                         ~8      !1
          7        ASSIGN_DIM                                               !2, !1
          8        OP_DATA                                                  ~8
   11     9        INIT_FCALL                                               'var_export'
         10        SEND_VAR                                                 !2
         11        DO_ICALL                                                 
         12      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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