Parameters

$fresourcerequired

$actionstringoptional

Default:'read'

Return

Source

public function read_line( $f, $action = 'read' ) {
	static $last_line     = '';
	static $use_last_line = false;
	if ( 'clear' === $action ) {
		$last_line = '';
		return true;
	}
	if ( 'put-back' === $action ) {
		$use_last_line = true;
		return true;
	}
	$line          = $use_last_line ? $last_line : fgets( $f );
	$line          = ( "\r\n" === substr( $line, -2 ) ) ? rtrim( $line, "\r\n" ) . "\n" : $line;
	$last_line     = $line;
	$use_last_line = false;
	return $line;
}

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