making error checking code into an array?

[Space_Cowboy]

<?php

$pattern = "/^[A-Za-z0-9_\- ]+$/";

if(preg_match( $pattern, "$variable" ) ) {
    echo "match\n";
} else {
    echo "no match\n";
}

?>

In the above example I am checking that my variable (ie "$variable") only contains alpha/numeric charcaters plus hyphans and underscores.

What if I have many variables? Is there a way to adapt this code into an array rather than having to repeat this code for how ever many variables I have?

cheers :eek:

[NogDog]

Not sure how to answer this, as I'm not sure what you want to check: do you want to check each member of an array separately, or do you want to know if there is at least one invalid character in the entire array? For the former, you could just walk through the array via a foreach() loop, applying the check to each value. If the latter, you could [man]implode/man the array into a single string and then check it.