Post Views: 30 1. Error in PHP 7.4: ErrorException array_key_exists() expects parameter 2 to be array, int give. as shown in Figure 1 2. The code is implemented as follows, the reason is that require($this->getCachePath()) returns 1, and the root of the return 1 is the path $this->getCachePath() The content in the represented file is empty. 3. In fact, when…
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