simple preg_match question

[wil831]

how do i check if $string is like "anyword, anotherword" ?
for example, the following would be TRUE if $string is:
"do, john"
"gambler, the"
"words, two"''

but FALSE if $string is:
"do, john m"
"green apple, yellow banana"
"one, two, three"

i need it to check if $string has one word before the comma and another word after the comma and nothing more.

[pyro]

Try matching it like this:

preg_match("/^[a-zA-Z]+,{1}\s{1}[a-zA-Z]+$/",$string)

It will match like this:

Must start with one or more a-zA-Z, followed by one comma, followed by one space, and must end with one or more a-zA-Z. If numbers and the underscore are ok, then you could match it like this:

preg_match("/^\w+,{1}\s{1}\w+$/",$string)