Normalizes EOL characters and strips duplicate whitespace.

Parameters

$strstringrequired

The string to normalize.

Return

Source

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

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