Re: Re: What could the intention be of someone using "\0" in comparison be?

But what does "\0" mean, and where is it documented? In this context, it clearly means zero, but not false, so the intention is to check for the presence of the tested string. It seems that the backslash means to treat as a literal zero character, which then gets treated as a "true" zero value, rather than a false. I get PHP's dynamic typing, but this seems a bit tortuous, and I would always use your idiom ( !== false) whic is much more the PHP way. Toby On 8/19/2014 2:58 PM, Christoph Becker wrote:

Jacob Kruger wrote:

As in, while my first guess would be that they'd meant to use just the number 0, what would your guesstimate be relating to why someone would in fact use the following syntax as part of determining if a certain phrase/string was included in a variable's value? //start excerpt... if (strpos ($text, "<b>") >= "\0") //end excerpt ???

Well, using "0" or 0 instead of "\0" would result in unintended behavior. Consider strpos() returning 0, because the $needle is found at the very beginning of $haystack. See <http://3v4l.org/0uaY6>, where the second and third results are not desired. However, I prefer the following way to test that a string is contained in another string: if (strpos($haystack, $needle) !== false)