WP_CLI

FileCache::prune() │ public │ WP-CLI 1.0

Remove all cached files except for the newest version of one.

Метод класса: FileCache{}

Хуков нет.

Возвращает

true|false.

Использование

$FileCache = new FileCache();
$FileCache->prune();

Код FileCache::prune() WP-CLI 2.8.0-alpha

wp-cli/php/WP_CLI/FileCache.php 
public function prune() {
	if ( ! $this->enabled ) {
		return false;
	}

	/** @var Finder $finder */
	$finder = $this->get_finder()->sortByName();

	$files_to_delete = [];

	foreach ( $finder as $file ) {
		$pieces    = explode( '-', $file->getBasename( $file->getExtension() ) );
		$timestamp = end( $pieces );

		// No way to compare versions, do nothing.
		if ( ! is_numeric( $timestamp ) ) {
			continue;
		}

		$basename_without_timestamp = str_replace( '-' . $timestamp, '', $file->getBasename() );

		// There's a file with an older timestamp, delete it.
		if ( isset( $files_to_delete[ $basename_without_timestamp ] ) ) {
			unlink( $files_to_delete[ $basename_without_timestamp ] );
		}

		$files_to_delete[ $basename_without_timestamp ] = $file->getRealPath();
	}

	return true;
}