What is the best method in PHP to read a specific section of an HTML file between two keywords or line numbers?

When you need to read a specific section of an HTML file between two keywords or line numbers in PHP, you can use a combination of file handling functions and string manipulation. One way to achieve this is by reading the entire HTML file into a string, then using functions like strpos() to find the positions of the keywords or counting the lines to determine the line numbers. Once you have the start and end positions, you can extract the desired section using substr().

// Open the HTML file
$file = fopen('example.html', 'r');

// Read the entire file into a string
$html = fread($file, filesize('example.html'));

// Find the positions of the start and end keywords
$start_position = strpos($html, 'start_keyword');
$end_position = strpos($html, 'end_keyword', $start_position);

// Extract the section between the keywords
$section = substr($html, $start_position, $end_position - $start_position);

// Close the file
fclose($file);

// Output the extracted section
echo $section;