PHP导出Excel方法

<?php   
header(”Content-Type: application/vnd.ms-execl”);   
header(”Content-Disposition: attachment; filename=myExcel.xls”);   
header(”Pragma: no-cache”);   
header(”Expires: 0″);   
/*first line*/   
echo “hello”.”\t”;   
echo “world”.”\t”;   
echo “\t\n”;   
   
/*start of second line*/   
echo “this is second line”.”\t”;   
echo “Hi,pretty girl”.”\t”;   
echo “\t\n”;   
?>