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function2.php
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function2.php
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<html>
<head>
<!-- Created by JohnKagga http://johnkagga.me -->
<title> Functions: 2</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");
?>
<?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;
}
// assigning the value to a variable
$value = addition(1,2);
echo $value;
?>
<!-- returning two values using an array -->
<br>
<?php
function add_sub($var1, $var2){
$add = $var1 + $var2;
$sub = $var1 - $var2;
// <!-- inserting the values in an array -->
$result = array($add,$sub );
return $result;
}
$addsub_array = add_sub(10,8);
echo "Addition: ". $addsub_array[0]."<br>";
echo "Substraction: ". $addsub_array[1]."<br>";
?>
</body>
</html>