Edit report at https://bugs.php.net/bug.php?id=65570&edit=1

 ID:                 65570
 Updated by:         ni...@php.net
 Reported by:        l dot werner at sprengnetter dot de
 Summary:            0 equals any string
-Status:             Open
+Status:             Not a bug
 Type:               Bug
 Package:            *General Issues
 Operating System:   Linux
 PHP Version:        5.5.3
 Block user comment: N
 Private report:     N

 New Comment:

Sorry, but your problem does not imply a bug in PHP itself.  For a
list of more appropriate places to ask for help using PHP, please
visit http://www.php.net/support.php as this bug system is not the
appropriate forum for asking support questions.  Due to the volume
of reports we can not explain in detail here why your report is not
a bug.  The support channels will be able to provide an explanation
for you.

Thank you for your interest in PHP.

http://php.net/manual/en/language.operators.comparison.php


Previous Comments:
------------------------------------------------------------------------
[2013-08-28 09:15:38] l dot werner at sprengnetter dot de

Description:
------------
When matching any string against 0 with == or != PHP will say they match.
This is in my eyes absolutely wrong because testing against other types will 
not result in this behavior.

Test script:
---------------
<?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');



Expected result:
----------------
null != 'string' -> bool(true)
false != 'string' -> bool(true)
0 != 'string' -> bool(true)
1 != 'string' -> bool(true) 

Actual result:
--------------
null != 'string' -> bool(true)
false != 'string' -> bool(true)
0 != 'string' -> bool(false)
1 != 'string' -> bool(true) 


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



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