php strpos does not detect # hashtag character

Question

Using php 7.1 and I have strange issue with strpos(). We have post value that needs to detect presence of # sign. Tried:

if(strpos($_POST["text"],"#")>0)
   {..} else {..}

and

if(strpos($_POST["text"],"#")!== false) 
   {..} else {..}

but it always go to else part. Also tried escaping hashtag

if(strpos($_POST["text"],"\#")>0)

Any idea what to do?

Hashtag is first value and I need to know is it present. Example value is:

$_POST["text"]='# 1010';

could you show us the actual value of `$_POST["text"]` for reference? — Franz Gleichmann, Feb 24 '19 at 16:55
`>0` won't work if it is the first character. Other than that it should function. https://3v4l.org/fSkDo vs. https://3v4l.org/3JuXY — user3783243, Feb 24 '19 at 16:57
Can't reproduce the problem. VTC for typo. https://3v4l.org/hoS51 — Andreas, Feb 24 '19 at 16:58
@Ivan still can't reproduce the problem. https://3v4l.org/t7j8B — Andreas, Feb 24 '19 at 17:05

score -2 · Answer 1 · answered Feb 24 '19 at 17:22

-2

if(strpos($_POST["text"],"#")!== false)

should be used, not:

if(strpos($_POST["text"],"#")>0)

# could be the first character which is not >0.

answered Feb 24 '19 at 17:22

user3783243

1 Answers1