validating the contents of an array

Hi I need to figure out a way to validate an array and then display a message depending on the outcome of the validation. So far I've got:
also, it needs to be done in two seperate files.

//part of page3.php
$readfile = file($file);
	
		foreach ($readfile as $string)
		{
		list($num, $last, $first, $email) = explode(',', $string);
		require_once("./page4.php");
		isStudentNumberWellFormed($num);
		}

PHP:

<?php
//page4.php
function isStudentNumberWellFormed ($studentnumber){

if(eregi("^a[0-9]{8}$", $studentnumber)){

$openfile = fopen("courses/errors.log", "a+");
$date_time = date("F d, Y (h:i:s a)\r\n");
$filename = $_GET['filename'];
$error = $date_time."Improper student number from:".$filename."\r\n".$studentnumber."\r\n------\r\n";

fwrite($openfile, $error);
fclose($openfile);
echo "Errors have been found in".$_GET['filename'].".A report, errors.log has been generated";
}

else{
$numberokay = "Error in string format";
return $numberokay; 
}

}

?>

PHP:

As you can see on page4.php, if I put echo after I write to the error log, the foreach loop on page3.php will echo "Errors have been..." as many times as it loops through.
I only need to display it once.
Help!!

 

Please don't post multiple threads for the same problem. Bump your old ones.

Plus the logic of your script doesn't make too much sense.

Your function called isStudentNumberWellFormed should return either true or false. Don't output any errors there.

And then inside your loop use an if() clause.

if (!isStudentNumberWellFormed($num))
{
    echo 'Error message here';
    break; // This will exit the loop
}

PHP:

And call require_once before the loop. There's no need to include it each time new.

 

ok thanks nico
my apologies for the multiple thread postings, didn't know you could bump them up like that...