strpos and numbers?

[galvin]

Say you have a simple string that has just numbers and commas, like...

 

$numbers="12,18,24,32,108,190,4002"

 

Now say I want to check if the number "8" is in that string.  If I use the following, it will return true because 8 is in "18", but I'd want it to return false since the individual number 8 is not there.

 

$search=strpos($numbers,;
//returns true

 

What is the best way to get around this?  Break the string into an array first then use in_array, or something else?

[Jessica]

Yes, explode into an array and use in_array. The other more complicated option is to check if 8, is first, ,8 is last, or ,8, exists. The first way is easier and smarter.

[Christian F.]

The use explode () and in_array () is one solution, the other requires Regular Expressions. I recommend the former.

[galvin]

Thanks guys, I'll use explode and in_array

[kicken]

The other more complicated option is to check if 8, is first, ,8 is last, or ,8, exists. The first way is easier and smarter.

 

You could just do:

$search = str_pos(",{$numbers},", ',8,');

 

I'd probably go with the explode/in_array solution though, it's a bit more proper.

[Jessica]

The other more complicated option is to check if 8, is first, ,8 is last, or ,8, exists. The first way is easier and smarter.

 

You could just do:

$search = str_pos(",{$numbers},", ',8,');

 

I'd probably go with the explode/in_array solution though, it's a bit more proper.

 

Touche!