add missing books to sections as dummy entries for further modification. (1) Alter "Auto_increment" to 5190896 for sections table in database. (2) Finds missing books (using mysql OR _select_distinct() in add_missing_books_to_sections.php (3) Put the missing_books.csv in intermediate_results. and execute: add_missing_books_to_sections.php

<?php

$returnArray = array();
$files1 = scandir("regex_files");
foreach ( $files1 as $file ) {
	if ( $file != "." && $file != ".." ) {
		$returnArray[preg_replace("/\.txt/", "", $file)] = file_get_contents( "regex_files/".$file );
	}
}

echo json_encode($returnArray);
?>