Are there any best practices for efficiently extracting URLs from CSS files using PHP?

When extracting URLs from CSS files using PHP, one efficient approach is to use regular expressions to match and extract the URLs from the CSS file. By using a regular expression pattern that targets URLs within CSS files, we can easily extract the URLs and process them as needed. 

<?php
$css = file_get_contents('styles.css');

preg_match_all('/url\(([^)]+)\)/', $css, $matches);

$urls = $matches[1];

foreach ($urls as $url) {
    // Process each URL as needed
    echo $url . "\n";
}
?>

Keywords

PHP CSS files URL extraction regular expressions file parsing

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