php-regexHow to use PHP regex to match a line break?

To match a line break in PHP using regex, use the \R character class. This character class matches any line break sequence, including \r, \n, and \r\n.

Example code

$string = "This is a string
with a line break";

if (preg_match('/\R/', $string)) {
    echo "Line break found!";
}

Output example

Line break found!

Code explanation

• \R: The character class that matches any line break sequence.
• preg_match(): The function used to match a regular expression against a string.

Helpful links

• PHP Regular Expression Functions
• Regular Expressions

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