Online PHP editor | output for tmGQe

<?php $csv = <<<'CSV' a,b,c,d 1,2,3,4 1,2,3,4 1,2,3,4 1,2,3,4 1,2,3,4 1,2,3,4 1,2,3,4 1,2,3,4 1,2,3,4 1,2,3,4 1,2,3,4 1,2,3,4 1,2,3,4 1,2,3,4 1,2,3,4 1,2,3,4 1,2,3,4 1,2,3,4 1,2,3,4 CSV; // Extension is important $filename = '/tmp/data.txt'; $nBytes = file_put_contents($filename,$csv); if ( $nBytes === false ) { trigger_error("Unable to write data to file", E_USER_ERROR); } $fi = finfo_open( FILEINFO_MIME_TYPE ); if ($fi === false ) { trigger_error("Unable to open finfo", E_USER_ERROR); } $mimeType = finfo_file($fi, $filename, FILEINFO_MIME_TYPE); echo $mimeType;