[Resolved] array_intersect no results

[aconway]

I am trying to compare two txt files, and return which email address exist in both files. I don't know what I am doing wrong, but I get

Array()

If anyone has any ideas PLEASE help!

F1 has just email addresses
F2 has email, first name, Last name ( in that order )

$F1 = file("F1.txt");
$F2= file("F2.txt");

$new = array();
for ( $i=0; $i<count($F2); $i++ )
{
$new[] = explode("\t",$F2[$i]);
}

$rebar = array();
for ( $n=0; $n<count($new); $n++ )
{
$rebar[] = $new[$n][0];
}

$result = array_intersect($F1,$rebar);

print_r($result);

[Installer]

It seems to work for me. With this data:

$F1 = array('$[e-mail]', '[e-mail]', '[e-mail]');
$F2 = array("[e-mail]\tSam\tJones",
            "[e-mail]\tSylvia\tBrown",
            "[e-mail]\tSue\tSchmidt");

I get this output:

Array ( [1] => [email][e-mail][/email] [2] => [email][e-mail][/email] )

edit: When you enter the data into the text file, is your editor perhaps changing tabs to spaces?

[xblue]

also watch out for linebreaks when using file(), they are not trimmed automatically.

[Installer]

That's right. The elements of $F1 should be trimmed. Good observation.

[aconway]

it did need trim()

THANK YOU! 😃