In the provided code snippet, how can the replacement of a URL be modified to truncate the URL after a certain number of characters?

In order to truncate a URL after a certain number of characters, we can use the `substr()` function in PHP to limit the length of the replaced URL. By specifying the desired number of characters, we can ensure that the URL is truncated to the desired length. This can be achieved by modifying the replacement part of the `preg_replace()` function to include `substr($url, 0, $maxLength)`. 

// Original URL
$url = "https://www.example.com/very-long-url-that-needs-to-be-truncated";

// Maximum length of the truncated URL
$maxLength = 20;

// Replace the URL with a truncated version
$truncatedUrl = preg_replace('/https?:\/\/[^ ]+/', substr($url, 0, $maxLength), $url);

echo $truncatedUrl;

Keywords

PHP string manipulation substr URL truncation character limit

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