Html Within Php Coding - Is there a way to read HTML Code?

<?php include ("$path/yourfile.inc"); ?>

<?php
$file1 = 'files/leave.txt';
$file2 = 'files/leave1.txt';
$file3 = 'files/leave1.htm';

copy ($file1, $file2);

$from=array();
$from[]="<<number>>";
$from[]="<<rank>>";
$from[]="<<initials>>";
$from[]="<<family>>";
$from[]="<<datef>>";
$from[]="<<datet>>";
$from[]="<<dates>>";
//and so on to have all the fields you want to replace

$to=array();
$to[]=$number;
$to[]=$rank;
$to[]=$initials;
$to[]=$family;
$to[]=$datef;
$to[]=$datet;
$to[]=$dates;
//And so on to have all the strings you have to put in place of the fields

$string=str_replace($from,$to,$string);
$fp = fopen( "$file2" , "w" );
fputs( $fp, $string );
fclose( $fp );

copy ($file2, $file3);
$fileatt = "files/leave1.htm"; // Path to the file
$fileatt_type = "application/octet-stream"; // File Type
$fileatt_name = "leave1.htm"; // Filename that will be used for the file as the attachment

$email_from = "Test"; // Who the email is from
$email_subject = "Leave Application"; // The Subject of the email
$email_message = "This is a Leave Application."; // Message that the email has in it

$email_to = "cm44750@cadetnet.gov.au"; // Who the email is too

$headers = "From: ".$email_from;



$semi_rand = md5(time());
$mime_boundary = "==Multipart_Boundary_x{$semi_rand}x";

$headers .= "\nMIME-Version: 1.0\n" .
"Content-Type: multipart/mixed;\n" .
" boundary=\"{$mime_boundary}\"";

$email_message .= "This is a multi-part message in MIME format.\n\n" .
"--{$mime_boundary}\n" .
"Content-Type:text/html; charset=\"iso-8859-1\"\n" .
"Content-Transfer-Encoding: 7bit\n\n" .
$email_message . "\n\n";


/********************************************** First File ********************************************/


$fileatt = "files/leave1.htm"; // Path to the file
$fileatt_type = "application/octet-stream"; // File Type
$fileatt_name = "leave1.htm"; // Filename that will be used for the file as the attachment

$file = fopen($fileatt,'rb');
$data = fgets($file,filesize($file));
fclose($file);


$data = chunk_split(base64_encode($data));

$email_message .= "--{$mime_boundary}\n" .
"Content-Type: {$fileatt_type};\n" .
" name=\"{$fileatt_name}\"\n" .
//"Content-Disposition: attachment;\n" .
//" filename=\"{$fileatt_name}\"\n" .
"Content-Transfer-Encoding: base64\n\n" .
$data . "\n\n" .
"--{$mime_boundary}--\n";

/********************************************** Second File ********************************************/

// To add more files just copy the file section again, but make sure they are all one after the other! If they are not it will not work!


$ok = @mail($email_to, $email_subject, $email_message, $headers);

if($ok) {
echo "<font face=verdana size=2>The Leave Application was successfully sent!</font>";
} else {
die("Sorry but the Leave Application could not be sent. Please go back and try again!");
}

unlink( "$file2" );
unlink( "$file3" );

?>