What are the advantages of using preg functions over ereg functions in PHP for regular expressions?

Using preg functions over ereg functions in PHP for regular expressions is advantageous because preg functions are more powerful, flexible, and efficient. They offer better performance and support more advanced features like Unicode character support, lookahead assertions, and named capturing groups. Additionally, preg functions are recommended for use in PHP versions 5.3 and above, as ereg functions have been deprecated. 

// Using preg functions for regular expressions
$string = "Hello, World!";
if (preg_match("/Hello/", $string)) {
    echo "Match found!";
} else {
    echo "No match found.";
}

Keywords

preg functions ereg functions regular expressions advantages PHP

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