FileCache data can not be shared over web and cli

[gerpayt]

I cleared all file cache before, then I set a cache via web, wait it until expired, and then I set the same key cache via cli, I got failed.

• step1: delete runtime/cache/*
• step2: I run the action below(via web)

    public function actionTestCache()
    {
        $key = "test";
        $cache = Yii::$app->cache;
        $ret = $cache->get($key);
        var_dump($ret);

        $data = 'hello';
        $status = $cache->set($key, $data, 10);
        var_dump($status);

    }

I got bool(false) bool(true)

• step3: wait 10 seconds
• step4: run the same action(via cli)
  same code was copied to command dir
  I got the result:

bool(false)
bool(false)

conclusion: cache can not be set!

Additional info

Q	A
Yii version	2.0.15
PHP version	7.1.23
Operating system	macOS mojave 10.14.3

[gerpayt]

I guess the problem was caused by touch function in php
the function setValue() in FileCache.php

    protected function setValue($key, $value, $duration)
    {
        $this->gc();
        $cacheFile = $this->getCacheFile($key);
        if ($this->directoryLevel > 0) {
            @FileHelper::createDirectory(dirname($cacheFile), $this->dirMode, true);
        }
        if (@file_put_contents($cacheFile, $value, LOCK_EX) !== false) {
            if ($this->fileMode !== null) {
                @chmod($cacheFile, $this->fileMode);
            }
            if ($duration <= 0) {
                $duration = 31536000; // 1 year
            }

            return @touch($cacheFile, $duration + time());
        }

        $error = error_get_last();
        Yii::warning("Unable to write cache file '{$cacheFile}': {$error['message']}", __METHOD__);
        return false;
    }

touch() function always return False when operator is different with the owner of cache file.

[samdark]

What would it give you if you'll remove @?

[samdark]

Also try updating to latest release of the framework.

[yii-bot]

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In order for our issue tracker to be effective, we are closing this issue.

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Thanks!

This is an automated comment, triggered by adding the label expired.

[xcopy]

Yeah, even more: I've got

   WARNING  Trying to access array offset on null in vendor/yiisoft/yii2/caching/FileCache.php on line 162.

because

$error = error_get_last(); // => null
Yii::warning("Unable to write cache file '{$cacheFile}': {$error['message']}", __METHOD__);

---

Here is the proposed solution:

$message = "Unable to write cache file '{$cacheFile}'";

if ($error = error_get_last()) {
    $message .= ": {$error['message']}";
}

Yii::warning($message, __METHOD__);

[samdark]

@xcopy do you have time to do a pull request?

[xcopy]

Yes, sure.