How can the PHP Manual be effectively utilized to understand and implement functions like preg_match_all() for specific tasks?

To effectively utilize the PHP Manual to understand and implement functions like preg_match_all(), one should carefully read the documentation provided for the function, including the parameters it accepts and the format of its output. Additionally, it is helpful to look at examples provided in the manual to see how the function is used in practice. By studying the manual thoroughly, one can gain a better understanding of how to use preg_match_all() for specific tasks.

// Example code snippet demonstrating the use of preg_match_all() to extract all email addresses from a string

$string = "Contact us at info@example.com or support@example.org for assistance.";

preg_match_all('/\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b/', $string, $matches);

$emails = $matches[0];

foreach ($emails as $email) {
    echo $email . "<br>";
}