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php3-list | 199908

Re: [PHP3] strpos() From: Adam Whitehead (adam <email protected>)
Date: 08/12/99

Hi,

As they can't alter the function's behaviour now that it is in widespread
use, you'll
have to use a workaround.

The way I do it is, instead of

if (strpos($blah,"whatever"))

use
if (strpos("_$blah","whatever"))

Hence, it will only return 0 if "whatever" truly doesn't exist in the
haystack, anywhere. Just
better not go searching for the haystack for _ :)

You could try to use a character that is unlikely to be the start of a
string.. ie. the null character
(strpos is binary safe). ie. if (strpos("\0$blah","whatever"))

At 04:01 PM 8/8/99 -0400, Scott Shepherd wrote:
>am i missing something? strpos() seems useless because it returns the same
>thing if the needle is at the beginning of the haystack (0) or not in the
>haystack at all (false, ie 0). other languages get around this by having
>such functions return -1 for failure or throw an error flag or something.
>
>i just want to know "is the needle in the haystack?" i've resorted to if(
>strstr( $a, $b ) ) which works in my case, but that could be screwy too
>if, say, you're looking for "0" in a haystack that might be "0".
>
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Regards,
Adam Whitehead
CEO - Netherworld Media
E-mail: adam <email protected>
Phone: +61 (889) 279 898
FAX: +61 (889) 273 889
Mobile: +61 (411) 241 120
Musicseek (http://www.musicseek.net) 

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