What are the implications of the removal of the /e modifier in PHP 7 for developers using preg_replace in their code?

The removal of the /e modifier in PHP 7 means that developers can no longer use it with the preg_replace function to evaluate code as PHP. To solve this issue, developers can use anonymous functions in combination with the preg_replace_callback function to achieve similar functionality. 

// Using preg_replace_callback instead of the /e modifier in PHP 7
$string = "Hello, {name}!";
$replaced = preg_replace_callback('/\{(\w+)\}/', function($matches) {
    return strtoupper($matches[1]);
}, $string);

echo $replaced; // Output: Hello, NAME!

Keywords

PHP 7 /e modifier preg_replace developers implications

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