ID:               20708
 Updated by:       [EMAIL PROTECTED]
 Reported By:      [EMAIL PROTECTED]
-Status:           Open
+Status:           Bogus
 Bug Type:         Scripting Engine problem
 Operating System: linux 2.2.20, linux 2.4.19
 PHP Version:      4.2.3
 New Comment:

The numerical value of 'foo' is 0.  If you want to compare both value
*and* type, use ===


Previous Comments:
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[2002-11-28 18:11:16] [EMAIL PROTECTED]

another summary

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[2002-11-28 18:02:32] [EMAIL PROTECTED]

sorry, im really not sure if this is a kind of bug or if i'm getting
something wrong: the two lines

echo 'foo'==0 ? 'is true ' : 'is false ';
if('bar'==0) echo 'is true '; else echo 'is false ';

will output:
is true is true

i dont understand why 'foo'==0 returns true.

the way i understand the manual, php should consider 'foo' a nonempty
string and 0 a zero integer. even if it would do a boolean comparison,
according to the manual 'foo' should be juggled to true and 0 should be
juggled to false. how can 'foo'==0 return true? have i missed
something?

i hope i do not resubmit a known issue, i tried some queries but i
really didnt know how to lookup this issue.

this happens with variables as well. i ran into this problem in my
programming when comparing array keys that could be numeric or string.
a 0 array key compared against any nonempty string array key always
returned true. it took me a while to find out that's why my program
didnīt work the way i thought it should. 

i hope this is not something that happens only to me, but i have tested
the two lines on three different boxes before writing to you.

my configure line:
./configure' '--with-mysql=/usr/local/mysql'
'--with-apache=../apache_1.3.26' '--enable-ftp'
'--with-zlib-dir=/usr/lib'

Best regards,
wolfgang

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