px-files/_sys/php/px.php
public function get_directory_index(){
		if( count($this->directory_index) ){
			return $this->directory_index;
		}
		$tmp_di = $this->conf->directory_index;
		$this->directory_index = array();
		foreach( $tmp_di as $file_name ){
			$file_name = trim($file_name);
			if( !strlen($file_name) ){ continue; }
			array_push( $this->directory_index, $file_name );
		}
		if( !count( $this->directory_index ) ){
			array_push( $this->directory_index, 'index.html' );
		}
		return $this->directory_index;
	}
public function get_directory_index(){
		if( count($this->directory_index) ){
			return $this->directory_index;
		}
		$tmp_di = $this->conf->directory_index;
		$this->directory_index = array();
		foreach( $tmp_di as $file_name ){
			$file_name = trim($file_name);
			if( !strlen($file_name) ){ continue; }
			array_push( $this->directory_index, $file_name );
		}
		if( !count( $this->directory_index ) ){
			array_push( $this->directory_index, 'index.html' );
		}
		return $this->directory_index;
	}
`directory_index` (省略できるファイル名) の一覧を得る。

@return array ディレクトリインデックスの一覧