What potential issues could arise when trying to output data from a file into an HTML table using PHP?

One potential issue that could arise when outputting data from a file into an HTML table using PHP is improperly formatted data causing errors in the table display. To solve this, you can use functions like `htmlspecialchars()` to properly escape special characters in the data before outputting it into the table. 

<?php
$file = 'data.txt';
$data = file($file);

echo '<table>';
foreach ($data as $line) {
    $line = htmlspecialchars($line); // escape special characters
    echo '<tr><td>' . $line . '</td></tr>';
}
echo '</table>';
?>

Keywords

file handling data output HTML table PHP functions error handling

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