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<?php echo "null != 'string' -> "; var_dump(null != 'string'); echo "<br />"; echo "false != 'string' -> "; var_dump(false != 'string'); echo "<br />"; echo "0 != 'string' -> "; var_dump(0 != 'string'); echo "<br />"; echo "1 != 'string' -> "; var_dump(1 != 'string');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/d9o6T
function name:  (null)
number of ops:  20
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ECHO                                                     'null+%21%3D+%27string%27+-%3E+'
    3     1        INIT_FCALL                                               'var_dump'
          2        SEND_VAL                                                 <true>
          3        DO_ICALL                                                 
    4     4        ECHO                                                     '%3Cbr+%2F%3E'
    6     5        ECHO                                                     'false+%21%3D+%27string%27+-%3E+'
    7     6        INIT_FCALL                                               'var_dump'
          7        SEND_VAL                                                 <true>
          8        DO_ICALL                                                 
    8     9        ECHO                                                     '%3Cbr+%2F%3E'
   10    10        ECHO                                                     '0+%21%3D+%27string%27+-%3E+'
   11    11        INIT_FCALL                                               'var_dump'
         12        SEND_VAL                                                 <true>
         13        DO_ICALL                                                 
   12    14        ECHO                                                     '%3Cbr+%2F%3E'
   14    15        ECHO                                                     '1+%21%3D+%27string%27+-%3E+'
   15    16        INIT_FCALL                                               'var_dump'
         17        SEND_VAL                                                 <true>
         18        DO_ICALL                                                 
         19      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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