Too much beer to think through the logical progression of the operators,
but maybe try:

if (stripos($searchtext, 'xxxx') !== false) {

-Shawn

Bruce Cowin wrote:
> I'm using PHP 5.1 on IIS.  I have an app that uses MimeDecode to load
> mime files and I've built an object to parse them into their various
> parts; i.e., $msg->Body(), $msg->Sender(), etc.  I'm using stripos() to
> look for a string (that I know is in my test files).  It works if I
> search in $msg->Body(), but doesn't work if I build a variable and
> search it.  i.e., 
> 
> this works:
> 
> if (!stripos($msg->Body(), 'xxxx') === false)
> {
>       echo "\n found in Body()\n";
> }
> 
> 
> but this doesn't (I've tried it with and without htmlentities()):
> 
> $searchtext = htmlentities($msg->Sender()) . htmlentities($msg->To()) .
> htmlentities($msg->Cc()) . htmlentities($msg->Subject()) .
> htmlentities($msg->Body());
> if (!stripos($searchtext, 'xxxx') === false)
> {
>       echo "\nstring found!\n";
> }
> 
> Does anyone have any ideas?  Thanks.
> 
> 
> Regards,
> 
> Bruce

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