Functions

• function min_funktion ($a, $b) {
• $c = $a + $b;
• $a = $a + 1;
• return $c;
• }

Lad os prøve:

• $x = 4;
• print min_funktion ($x, 6);
• 10
• print $x;
• 4

Pass By Reference

• function min_funktion (&$a, $b) {
• $c = $a + $b;
• $a = $a + 1;
• return $c;
• }

Lad os prøve:

• $x = 4;
• print min_funktion ($x, 6);
• 10
• print $x;
• 5