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Date: Sat, 29 Mar 2003 21:38:30 +0100 (CET)
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cc: PHP Developers Mailing List <internals@lists.php.net>
Message-ID: <Pine.LNX.4.53.0303292130390.31697@jdi.jdimedia.nl>
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Subject: Wrong code generate with -e mode
From: d.rethans@jdimedia.nl (Derick Rethans)

Hello,


I encountered a weird bug that I cant quite figure out. It has to do 
with the extended-info mode (-m) of PHP.


problem:
the opcodes generated in extended-info mode are incorrect


testscript:
<?php
class dbhelper {
  function quote($s) {
    return addslashes ($s);
  }
}

echo dbhelper::quote("tests");
?>


php configure:
./configure --disable-all


output with 'php testscript.php':
tests


output with 'php -e testscript.php':
<br />
<b>Fatal error</b>:  Undefined class constant 'quote' in <b>/dat/dev/php/tests/testscript.php</b> on line <b>8</b><br />
/dat/dev/php/tests/testscript.php(8) : Fatal error - Undefined class constant 'quote'


generated opcodes with 'php':
line     #  op                           fetch          ext  operands
-------------------------------------------------------------------------------
   2     0  ZEND_DECLARE_CLASS                               null, '%00dbhelper%2Fdat%2Fdev%2Fphp%2Fxdebug%2Ftests%2Ftest9.php2', 'dbhelper' 
   6     1  ZEND_VERIFY_ABSTRACT_CLASS                       null, 
   8     2  ZEND_FETCH_CLASS                                 null, , 'dbhelper'
         3  ZEND_INIT_STATIC_METHOD_CALL                     ~72, null, 'quote'
         4  SEND_VAL                                         'tests'
         5  DO_FCALL_BY_NAME                              1  $108, , -1
         6  ECHO                                             $108
  10     7  RETURN                                           1


generated opcodes with 'php -e':
line     #  op                           fetch          ext  operands
-------------------------------------------------------------------------------
   2     0  EXT_STMT                                         
         1  ZEND_DECLARE_CLASS                               null, '%00dbhelper%2Fdat%2Fdev%2Fphp%2Fxdebug%2Ftests%2Ftest9.php2', 'dbhelper'
   6     2  ZEND_VERIFY_ABSTRACT_CLASS                       null, 
   8     3  EXT_STMT                                         
         4  ZEND_FETCH_CLASS                                 null, , 'dbhelper'
         5  FETCH_CONSTANT                                   ~72, null
         6  ZEND_INIT_STATIC_METHOD_CALL                     
         7  SEND_VAL                                         'tests'
         8  DO_FCALL_BY_NAME                              1  $108, , -1
         9  EXT_FCALL_END                                    
        10  ECHO                                             $108
  10    11  EXT_STMT                                         
        12  RETURN                                           1



As you can see there is no EXT_FCALL_BEGIN, and there is a
FETCH_CONSTANT added (which causes the error message).

I've no clue why, Andrei can not reproduce it, Timm can.

regards,
Derick

-- 

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