QueryCache issue on Elgg 3?

[iionly]

I don't know the possible reason for the error mentioned in https://elgg.org/discussion/view/2932073/error-message-during-installation-v303. Maybe there's some issue in the current Elgg 3?

[jeabakker]

Fatal error: Default value for parameters with a class type hint can only be NULL in /vendor/elgg/elgg/engine/classes/Elgg/Cache/QueryCache.php on line 36

I can't find a class type hint

Elgg/engine/classes/Elgg/Cache/QueryCache.php

Lines 30 to 41 in 090b34d

	/**
	* @inheritdoc
	*
	* @param int $size max items in LRU cache
	* @param bool $config_disabled is this cache allowed to be used
	*/
	public function __construct(int $size = 50, bool $config_disabled = false) {
	$this->config_disabled = $config_disabled;
	parent::__construct($size);
	}

[iionly]

Maybe it's the php version used (< 7). I've now asked in the discussion thread if he has at least php 7.0 installed.

[iionly]

Assuming this issue is most likely not an issue due to no response in the discussion thread on the community for 2 weeks now.