php - How to echo an function -


i've been struggling echo output of function. tried this: 

echo 'myfunction('foo')';

.. won't work, due single quotes. suggestions?

let's take function : 

function getstr() {     return "hello"; }

it return string, means, calling : 

echo getstr();

has same exact result calling : 

echo "hello";

which means, result of function can treated variable (except cant modify it), can whatever want result : 

$string = getstr() . ' - ' . getstr(); echo $string; // print "hello - hello";

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