Check integer explode to an array?

[UrbanDweller]

Hey,

 

Im trying make a way to check an input to make sure it only consists of "1,2,3,4,5,6,7,8,9,0 and . " I thought i could explode the number and check it to an array that has "1,2,3,4,5,6,7,8,9,0 and . "

 

I havent worked with arrays before so i dont quite know how they work or to go about this?

 

Any ideas cause im sure im not the first to ask for something like this

 

Thanks

[bh]

hi,

 

had you about http://php.net/manual/en/book.pcre.php?

 

what is the type of the input? float?

than maybe http://www.php.net/manual/en/function.is-float.php

[silkfire]

It depends what you want to do:

 

1. Do you want to control the user input and return a "yes" or "no" whether it contains forbidden characters?

2. Or do you want to remove all forbidden characters automatically without letting the user know?

[bh]

@silkfire: "to check an input to make sure it only consists"

[silkfire]

Then create a regex with preg_match