PHPmailer file attachement not working [closed] - php

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Here is my email send php file , email sent but attachment is not working. File is there on that path . Issue is I need to get file name from a linux command and store in a variable . When I called that variable attachment is not working.
<?php
require_once('phpmailer/class.phpmailer.php');
$mail = new PHPMailer();
$file_name1 = shell_exec('sed "1q;d" /tmp/file.txt');
$file = "/home/user/.$file_name1";
echo $file;
//set Address data
$mail->Subject = "Acknowledgement Files ".date("m-d-Y:h:i:s")." ";
$mail->MsgHTML(" Acknowledgement Files are here attached");
$mail->AddAttachment($file)
if($mail->Send()) {
echo "Message sent!";
} else {
echo "Mailer Error: " . $mail->ErrorInfo;
}
?>
If I am going to use full path like
$file = "/home/user/filetxt"
this works but I want to call variable and echo is display correct name.
any thoughts?

Answer 1

Put your variable outside the quotation, like this:
$file = "/home/user/".$file_name1;

Answer 2

So I found issue and solution as well. So when we run any command on linux likels /path/ output is result\n. It adds new line charactor as well. So I changed this line
$file_name1 = shell_exec('sed "1q;d" /tmp/file.txt');
to
$file_name1 = trim(shell_exec('sed "1q;d" /tmp/file.txt'));
to remove new line . AND now it works