Concatenating ECHO syntax in PHP

Question

I have made a small function (WordPress), using echo .

/* .. Some code */
switch ($linktype) {
    case \"next\":
        echo \'


        

Answer 1

As a future memo to me:

$squarer = function ($x) { $out = $x*$x; echo "done!\n"; return $out; };

echo 'The square of 2 is ' . $squarer(2) . "!\n";
echo 'The square of 2 is ', $squarer(2), "!\n";

// **** OUTPUT ****
// done!
// The square of 2 is 4!
// The square of 2 is done!
// 4!