Composer

InstalledVersions::getVersion │ public static │ WPSCache 1.0

Метод класса: InstalledVersions{}

Хуков нет.

Возвращает

Строку|null. If the package is being replaced or provided but is not really installed, null will be returned as version, use satisfies or getVersionRanges if you need to know if a given version is present

Использование

$result = InstalledVersions::getVersion( $packageName );
$packageName(строка) (обязательный)
.

Код InstalledVersions::getVersion() WPSCache 3.0.3

wp-super-cache/vendor/composer/InstalledVersions.php 
public static function getVersion($packageName)
{
    foreach (self::getInstalled() as $installed) {
        if (!isset($installed['versions'][$packageName])) {
            continue;
        }

        if (!isset($installed['versions'][$packageName]['version'])) {
            return null;
        }

        return $installed['versions'][$packageName]['version'];
    }

    throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
}