<?php $spl = new SplFileObject('php://temp', 'r'); $fh = fopen('php://temp', 'r'); var_export([ 'SplFileObject::fputcsv result on failure' => $spl->fputcsv(['foo', 'bar']), 'SplFileObject::fwrite result on failure' => $spl->fwrite('foo'), 'fputcsv result on failure' => fputcsv($fh, ['foo', 'bar']), 'fwrite result on failure' => fwrite($fh, 'foo'), ]);
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Value for `_results` contains invalid data `array`