function hiThere ($name) { echo 'Hello ' . $name . ', welcome to PHP!'; } hiThere('Austin');
1 1 function hiThere ($name) {
2 − echo "Hello $name, welcome to PHP!";
3 − };
2 + echo 'Hello ' . $name . ', welcome to PHP!';
3 + }
4 4 5 − hiThere("Austin");
6 − 7 − # returns "Hello Austin, welcome to PHP!"
5 + hiThere('Austin');