Php versions – PHP 7.4.1 – PECL is not working (Trying to access array offset on value of type bool in PEAR/REST.php on line 181)

I met the same issue.

Notice: Trying to access array offset on value of type bool in REST.php on line 181

PEAR Version: 1.10.1
PHP Version: 7.4.1 
Zend Engine Version: 3.4.0 
Running on: Darwin kairee-mbp 19.2.0 Darwin Kernel Version 19.2.0

    function useLocalCache($url, $cacheid = null)
    {
        if (!is_array($cacheid)) {
            $cacheid = $this->getCacheId($url);
        }

        $cachettl = $this->config->get('cache_ttl');
        // If cache is newer than $cachettl seconds, we use the cache!
        if (time() - $cacheid['age'] < $cachettl) {
            return $this->getCache($url);
        }

        return false;
    }

    /**
     * @param string $url
     *
     * @return bool|mixed
     */
    function getCacheId($url)
    {
        $cacheidfile = $this->config->get('cache_dir') . DIRECTORY_SEPARATOR .
            md5($url) . 'rest.cacheid';

        if (!file_exists($cacheidfile)) {
            return false;
        }

        $ret = unserialize(implode('', file($cacheidfile)));
        return $ret;
    }

You may notice that when the cached file not exists, getCacheId will return false. In line 181, the code if (time() - $cacheid['age'] < $cachettl) { is trying to access array offset on false.

I add a condition to this line to fix it:

        // If cache is newer than $cachettl seconds, we use the cache!
-       if (time() - $cacheid['age'] < $cachettl) {
+       if ($cacheid && time() - $cacheid['age'] < $cachettl) {
            return $this->getCache($url);
        }