How to write response into label box - php

Question

I have a flat file TestFile.txt that has about 40 lines of data, each item on a separate row, so 40 lines. I have a PHP code that finds the row containing a string I want to find using using $Search_String. Then displays only the row containing $Search_String. This works exactly as I want. However; it displays the result in text area. How do I display the result into a label box?
Here is part of my flat file, filename is TestFile.txt:
RXFrequency=432675000
TXFrequency=432675000
RXOffset=260
TXOffset=120
Network=mnet.hopto.org
Password=8Yg81xrqK0313zt
Latitude=34.657783
Longitude=-3.784595
Port=62021
Here is my PHP:
<?php
// Place text to look for in string $Search_String.
// The $Search_String will remain hard coded in my production
// code. The users will not be able to select $Search_String.
$Search_String = "Lon";
// Identify Text File, open File and Read the File.
$MyFile = fopen("TestFile.txt", "r") or die("Unable to open file!");
$found= "False";
// Create the while loop. Test each line with the if statement,
// looking for $Search_String, and place the result into string $line.
// Next, echo string $line which containes the found line in the
// flat text file. It will return the entire line even from a
// partial $Search_String, which is what I want.
while ( $line = fgets( $MyFile ) )
{
if ( str_contains( $line, $Search_String ) )
{
echo $line;
break;
}
}
// If the string $Search_String was not found, show a message
if(!$found)
{
echo 'No match found';
}
// Properly close the text file.
fclose($MyFile);
?>
The PHP code above returns:
Longitude=-3.784595
Just what I want, but I need it displayed in text box, or label box.

Answer 1

You need to print the answer as html
<?php
// Place text to look for in string $Search_String.
// The $Search_String will remain hard coded in my production
// code. The users will not be able to select $Search_String.
$Search_String = "Lon";
// Identify Text File, open File and Read the File.
$MyFile = fopen("TestFile.txt", "r") or die("Unable to open file!");
$found= "False";
// Create the while loop. Test each line with the if statement,
// looking for $Search_String, and place the result into string $line.
// Next, echo string $line which containes the found line in the
// flat text file. It will return the entire line even from a
// partial $Search_String, which is what I want.
while ( $line = fgets( $MyFile ) )
{
if ( str_contains( $line, $Search_String ) )
{
echo "<div style="
border: double;
">".$line."</div>";
break;
}
}
// If the string $Search_String was not found, show a message
if(!$found)
{
echo 'No match found';
}
// Properly close the text file.
fclose($MyFile);
?>