Beispiel #1
0
<html>
  <head>
    <!-- Created by JohnKagga http://johnkagga.me -->
      <title> Functions </title>
  </head>
    <body>
      <!-- function without an argument -->
        <?php 
function sayName()
{
    echo "My name is John Kagga <br>";
}
sayName();
?>
      <!-- function with an argument -->
        <?php 
function sayName2($name)
{
    echo "My name is {$name} <br>";
}
sayName2("John");
sayName2("Kagga");
?>
    </body>
</html>
Beispiel #2
0
    echo "My name is John Kagga <br>";
}
sayName();
?>
      <!-- function with an argument -->
        <?php 
function sayName2($name)
{
    echo "My name is {$name} <br>";
}
sayName2("John");
sayName2("Kagga");
?>
        <?php 
$name = "wang yang";
sayName2($name);
// define a new function
function sayName3($greeting, $target, $punct)
{
    echo $greeting . ", " . $target . $punct . "!";
}
sayName3("Good evening", $name, "!");
?>
        <!-- returning a value from a function -->
        <br>
        <?php 
function addition($var1, $var2)
{
    $sum = $var1 + $var2;
    return $sum;
}