w3resource

PHP: nl2br() function

Description

The nl2br() function is used to insert HTML line breaks ('<br />') before all newlines (\n) in a string.

Version:

(PHP 4 and above)

Syntax:

nl2br(input_string)

Parameter:

Name Description Required /
Optional
Type
input_string The input string Required String
is_xhtml Whether XHTML compatible line breaks will be used or not. Optional Boolean

Return value:

Returns the altered string.

Value Type: String.

Pictorial Presentation

php-string-nl2br()

Example:

<?php
echo nl2br("w3resource \n. \ncom");
?>

Output:

w3resource
.
com 

View the example in the browser

See also

PHP Function Reference

Previous: metaphone
Next: number_format



PHP: Tips of the Day

Deep flattens an array

Example:

<?php
function tips_deepFlatten($items)
{
  $result = [];
  foreach ($items as $item) {
    if (!is_array($item)) {
      $result[] = $item;
    } else {
      array_push($result, ...tips_deepFlatten($item));
    }
  }

  return $result;
}

Print_r(tips_deepFlatten([1, [2], [[3], 4], 5]));
?>

Output:

Array
(
    [0] => 1
    [1] => 2
    [2] => 3
    [3] => 4
    [4] => 5
)