What kind of IF options are there? 1

[mufka]

I need to look at a variable to see whether it contains within it another variable.

Something like "IF $var1 CONTAINS $var2"
In this case if $var1=hellothere and $var2=there, it would be true.

Is there some way I can do this?

Thanks

 

[Vragabond]

Check strpos()

 

[mufka]

That's what I needed. Thanks.

 

[sleipnir214]

mufka:
Be sure to read completely the online manual page entry for strpos(). There is a warning there about possible logic errors that come up between the function's returning a 0 (if the searched-for string is at the beginning of the haystack) and the function's returning a FALSE (if the searched-for string is not in the haystack at all).



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[mufka]

My haystack is $HTTP_REFERER and what I'm looking for is near the end. I'm checking to see if the result of strpos is > 0. If it is or if the needle variable is empty, it just leaves the variable for $HTTP_REFERER unchanged. If strpos is 0 or if the needle variable is not empty, I append something to the $HTTP_REFERER.

What I'm doing is linking from a query page and I need to send the query data back to the query script if I link back to it from the destination page. I'm using one destination page that can be reached from either the query script of a static page. Rather than having two different pages, I wanted to put logic in to take different action if the referrer was a query page.

You probably don't want to know all that, but I don't think I need to worry about the stated concerns. I've tried every combination of ins and outs from the pages and I've had no anomalies.