Question

Im using the following code to import a csv that has two columns – account & phone:

$csv = array();
$file = fopen('import.csv', 'r');

while (($result = fgetcsv($file)) !== false)
{
    $csv[] = $result;
}

fclose($file);

The results look something like:

Array
(
    [0] => Array
        (
            [0] => 5182334
            [1] => [phone]
        )

    [1] => Array
        (
            [0] => 8372855
            [1] => [phone]
        )

    [2] => Array
        (
            [0] => 8373250
            [1] => [phone]
        )

    [3] => Array
        (
            [0] => 8373226
            [1] => [phone]
        )
)

What I need to do is loop through the array and clean up the phone numbers removing spaces, parans, etc. I know how to do the clean up but can’t figure out how to loop through the array to do said cleaning.

Answer 1

You can use array_map and preg_replace for example.

function clean($item) {
   $item[1] = preg_replace('#[^\d]#', '', $item[1]);
   return $item;
}

$csv = array_map("clean", $csv);

Or directly in loading phase:

$csv = array();
$file = fopen('import.csv', 'r');

while (($result = fgetcsv($file)) !== false)
{
    $result[1] = preg_replace('#[^\d]#', '', $result[1]);
    $csv[] = $result;
}