Checking Patterns

[Jezza]

Hi I want to be able to check addresses, for example it checks if the street address is valid.

"123 Test street"

I need to know how to check if the string contains a number then a space then a letter in one.

"<number><space><letter>"

 

is there anything that can do that?

I heard about preg_match but that thing confuses me.

[Psycho]

Well, this will do what you ask:

 

if(preg_match('/^\d+ [a-z]/i', $address)<1)
{
    echo "Invalid";
}
else
{
    echo "Valid";
}

 

But, that may be too strict. What is the address is "5200 1st Street" To allow the first character after the space to be a letter or a number use this

preg_match('/^\d+ [a-z\d]/i', $address)

[Jezza]

Thanks a bunch for your help, preg_match is really kool.