Question

I want to rewrite the code below to generate a string. This string I want to attach to an eamil. It should appear as a csv file.

$fh = fopen($file,'w');

    function __outputCSV(&$vals, $key, $filehandler) {
        fputcsv($filehandler, $vals, ';', '"');

    }
   array_walk($aData, '__outputCSV', $fh);
   fclose($fh);

Any idea’s?

Answer 1

The obvious and lazy approach would be not to rewrite it, but to simply create a temp file and call file_get_contents() on it afterwards.

This, however, would be boring, so I’m going to suggest what is arguably an over complicated approach, but it should work nicely and will be done entirely in memory:

Use this class that is provided in the PHP manual as an example of how to write a custom protocol handler, and the following example code:

function __outputCSV(&$vals, $key, $filehandler) {
    fputcsv($filehandler, $vals, ';', '"');
}

stream_wrapper_register("var", "VariableStream");

$myCSVdata = "";

$fh = fopen('var://myCSVdata', 'w');
array_walk($aData, '__outputCSV', $fh);
fclose($fh);

echo $myCSVdata; // Ta Da!