What is the best practice for finding and using PHP functions, especially for beginners?

Beginners can find and use PHP functions effectively by referring to the official PHP documentation (php.net) to search for functions and learn about their usage. It's important to read the function's description, parameters, return values, and examples provided in the documentation. Additionally, beginners can explore online tutorials, forums, and communities for practical examples and best practices.

// Example of using the PHP function strpos() to find the position of a substring within a string
$string = "Hello, World!";
$substring = "World";
$position = strpos($string, $substring);

if($position !== false) {
    echo "The substring '$substring' was found at position $position in the string '$string'.";
} else {
    echo "The substring '$substring' was not found in the string '$string'.";
}