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<?php $lookup = [ '0' => [ 'column1' => 'value1', 'column2' => 'value2', ], '1' => [ 'column1' => 'value1', 'column2' => 'value2', ] ]; // First check the cache if the items exist there $cacheResult = getFromCache($lookup); // If cache result does not match lookup, check the database $databaseResult = getFromDatabase($someDifferenceWhichNeedsToCheckedFor); // if Database lookup gave back what's missed from the Cache addToCache($databaseResult); // and merge both results // If databaseResult does not give what was missing from cache check the external "provider" $providerResult = getFromProvider($someDifferenceWhichNeedsToCheckedFor); // if Provider lookup gave back what's missed from the Cache $queryResponse = addToDatabase($databaseResult); if($queryResponse) { addToCache($queryResponse); } //Return result
Output for 7.0.28 - 7.2.10
Fatal error: Uncaught Error: Call to undefined function getFromCache() in /in/GG3Oq:17 Stack trace: #0 {main} thrown in /in/GG3Oq on line 17
Process exited with code 255.
Output for hhvm-3.22.0
Fatal error: Uncaught Error: Call to undefined function getFromCache() in /in/GG3Oq:-1 Stack trace: #0 {main}
Process exited with code 255.
Output for hhvm-3.18.5 - 3.21.3
Fatal error: Uncaught Error: Call to undefined function getFromCache() in /in/GG3Oq:17 Stack trace: #0 {main}
Process exited with code 255.
Output for 5.6.30
Fatal error: Call to undefined function getFromCache() in /in/GG3Oq on line 17
Process exited with code 255.