How can PHP be used to search for specific words in a string and convert them into links?

To search for specific words in a string and convert them into links using PHP, you can use the `preg_replace()` function along with regular expressions. First, define an array of words you want to search for and convert into links. Then, use `preg_replace()` to search for these words in the string and replace them with the corresponding links. 

<?php
$string = "This is a sample string with specific words like PHP, code, and programming.";
$words_to_link = array("PHP", "code", "programming");

foreach($words_to_link as $word) {
    $string = preg_replace("/\b($word)\b/i", "<a href='#'>$1</a>", $string);
}

echo $string;
?>

Keywords

PHP string manipulation search link conversion regular expressions

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