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Evan's Custom Function Examples

Demonstrates custom functions for math, text manipulation, and HTML generation.

Custom Function Demonstrations

Math Function

Square root of 49 is 7

Text Function

Reversed and capitalized text: !DLROW OLLEH

HTML Button Function

CODE FOLLOWS


<?php



include('includes/header.php');



error_reporting(E_ALL); // Enable error reporting



echo("<h1>Evan's Custom Function Examples</h1>");

echo('<p>Demonstrates custom functions for math, text manipulation, and HTML generation.</p>');



//============== Custom Functions Only ==============



// Draw a line

function line() {

    echo "<hr>";

}



// Custom Function 1: Math Calculation (square root)

function calculateRoot($number)

{

    $result = sqrt($number);

    echo("<p>Square root of $number is " . round($result, 2) . "</p>");

}



// Custom Function 2: Text Manipulation

function reverseAndCapitalize($text)

{

    $result = strtoupper(strrev($text));

    echo("<p>Reversed and capitalized text: $result</p>");

}



// Custom Function 3: Returns an HTML Button

function createButton($text, $color = "blue")

{

    return "<button style='background-color:$color; color:white; padding:10px; border:none;'>$text</button>";

}



//=============== Call Custom Functions ===============



line();



echo("<h2>Custom Function Demonstrations</h2>");



echo("<h3>Math Function</h3>");

calculateRoot(49);



echo("<h3>Text Function</h3>");

reverseAndCapitalize("Hello world!");



echo("<h3>HTML Button Function</h3>");

echo createButton("Click Me", "green");



line();



include('includes/footer.php');

?>

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