Bug #51422 [Opn->Csd]: invalid result

Edit report at http://bugs.php.net/bug.php?id=51422&edit=1

 ID:               51422
 User updated by:  ssiangge at yahoo dot com dot sg
 Reported by:      ssiangge at yahoo dot com dot sg
 Summary:          invalid result
-Status:           Open
+Status:           Closed
 Type:             Bug
 Package:          *General Issues
 Operating System: Win 7, Ubuntu 9.10
 PHP Version:      5.2.13

 New Comment:

I found answer from the user manual...
hmmm....

#
If you compare an integer with a string, the string is converted to a
number. If you compare two numerical strings, they are compared as
integers. These rules also apply to the switch statement. 
#

<?php
var_dump(0 == "a"); // 0 == 0 -> true
var_dump("1" == "01"); // 1 == 1 -> true

switch ("a") {
case 0:
    echo "0";
    break;
case "a": // never reached because "a" is already matched with 0
    echo "a";
    break;
}
?>


Previous Comments:
------------------------------------------------------------------------
[2010-03-29 05:42:58] ssiangge at yahoo dot com dot sg

Description:
------------
When I want test the value(int 0) is or is not match with a
string(string "text"), it return true! By right it should return false.
Then I try on other value, it also return wrong result!

Test script:
---------------
<?php

  $question = true;
  if ("text" == $question) echo "text == $question => true<br />";
  else echo "text == $question => false<br />";

  $question = 0;
  if ("text" == $question) echo "text == $question => true<br />";
  else echo "text == $question => false<br />";

  $question = 1;
  if ("text" == $question) echo "text == $question => true<br />";
  else echo "text == $question => false<br />";

  $question = false;
  if ("text" == $question) echo "text == $question => true<br />";
  else echo "text == $question => false<br />";
  
?>

Expected result:
----------------
text == 1 => false
text == 0 => false
text == 1 => false
text == => false


Actual result:
--------------
text == 1 => true
text == 0 => true
text == 1 => false
text == => false



------------------------------------------------------------------------



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Edit this bug report at http://bugs.php.net/bug.php?id=51422&edit=1