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normalize_whitespace( string $str )

Normalize EOL characters and strip duplicate whitespace.

Description

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

Version Description
2.7.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/normalize_whitespace