normalize_whitespace( string $str )

Normalize EOL characters and strip duplicate whitespace.


Parameters

$str

(string) (Required) The string to normalize.


Return

(string) The normalized string.


Source

File: wp-includes/formatting.php

function normalize_whitespace( $str ) {
	$str  = trim( $str );
	$str  = str_replace( "\r", "\n", $str );
	$str  = preg_replace( array( '/\n+/', '/[ \t]+/' ), array( "\n", ' ' ), $str );
	return $str;
}


Changelog

Changelog
Version Description
WP-2.7.0 Introduced.