How can PHP be used to read specific lines in a CSV file based on a certain pattern?

To read specific lines in a CSV file based on a certain pattern in PHP, you can use the fgetcsv() function to read each line of the file and then check if it matches the pattern. You can use regular expressions to define the pattern you are looking for and only process the lines that match it.

<?php
$pattern = '/your_pattern_here/';
$csvFile = fopen('your_csv_file.csv', 'r');

while (($data = fgetcsv($csvFile)) !== false) {
    if (preg_match($pattern, $data[0])) {
        // Process the line that matches the pattern
        echo implode(',', $data) . "\n";
    }
}

fclose($csvFile);
?>