/TypeScript/Fwrite() expects parameter 2 to be string, array given

Fwrite() expects parameter 2 to be string, array given

//If you explicit need to put array in file you can do it with this

fwrite($handle, print_r($result, true));
//or you can convert it to json, like this

fwrite($handle, json_encode($result));
//And later when you read the file you can just undo the action with 
//json_decode($your_file_content)

-1

Source: stackoverflow.com

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