What is the function of nl2br in PHP and when should it be used?

The nl2br function in PHP is used to insert HTML line breaks (<br>) before all newlines in a string. This is useful when displaying text that contains line breaks in an HTML document, as HTML ignores single newlines. 

$text = &quot;Hello\nWorld!&quot;;
echo nl2br($text);
```

This code snippet will output:
```
Hello
World!

Keywords

PHP nl2br function newline formatting

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