How can the deprecated /e modifier in preg_replace be replaced in PHP 5.5 and later versions?

The deprecated /e modifier in preg_replace was used to evaluate the replacement string as PHP code. To replace it in PHP 5.5 and later versions, you can use anonymous functions with preg_replace_callback instead. This allows you to achieve the same functionality in a more secure and efficient way. 

$original_string = "Hello, World!";
$replaced_string = preg_replace_callback('/\b(\w+)\b/', function($matches){
    return strtoupper($matches[0]);
}, $original_string);

echo $replaced_string; // Output: HELLO, WORLD!

Keywords

deprecated /e modifier preg_replace PHP 5.5 replacement

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