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 didn?t 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