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<?php $xyz = array ('a'=>'value1', 'b'=>'', 'c'=>'value3'); var_dump ($xyz); echo '<br />'; // let's see what we have if (isset($xyz['b'])) $foo = $xyz['b']; // no complaints here $foo = $xyz['b']; // this crashes echo 'foo is set to:', $foo, ': end', '<br />';
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 9
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
filename:       /in/SpuFW
function name:  (null)
number of ops:  16
compiled vars:  !0 = $xyz, !1 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        INIT_FCALL                                               'var_dump'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                                 
          4        ECHO                                                     '%3Cbr+%2F%3E'
    5     5        ISSET_ISEMPTY_DIM_OBJ                         0          !0, 'b'
          6      > JMPZ                                                     ~4, ->9
          7    >   FETCH_DIM_R                                      ~5      !0, 'b'
          8        ASSIGN                                                   !1, ~5
    6     9    >   FETCH_DIM_R                                      ~7      !0, 'b'
         10        ASSIGN                                                   !1, ~7
    7    11        ECHO                                                     'foo+is+set+to%3A'
         12        ECHO                                                     !1
         13        ECHO                                                     '%3A+end'
         14        ECHO                                                     '%3Cbr+%2F%3E'
         15      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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