_xml.tools.php

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<?php

    function array2xml( $data, $file = false, &$xml = NULL ) {

        // debug
            // print_r( $data );

        // TODO questa funzione è da rifare con i seguenti obiettivi:
        // 1) gestire in maniera trasparente l'array generato da xml2array
        // 2) gestire correttamente i namespace senza l'accrocchio del pipe
        // 3) mantenere la compatibilità con gli script che usano attualmente questa funzione

        if( $xml === NULL ) {
            $dtk = array_keys( $data );
            $root = array_shift( $dtk );
            $xml = new SimpleXMLElement( '<?xml version="1.0" encoding="utf-8"?><' . $root . '></' . $root . '>' );
#           $xml->registerXPathNamespace( 'xhtml', 'http://www.w3.org/1999/xhtml' );
            array2xml( array_shift( $data ), $file, $xml );
        }

        foreach( $data as $key => $value ) {

            $key = str_replace( ':', '|', $key );

            if( is_array( $value ) ) {

                $keys = array_keys( $value );

                if( $key === '@' ) {

                    foreach( $value as $attrName => $attrVal ) {
#                       $xml[ $attrName ] = $attrVal;
#                       if( strpos( $attrName, ':' ) ) {
#                       $xml->addAttribute( $attrName, $attrVal, substr( $attrName, 0, strpos( $attrName, ':' ) ) );
#                       } else {
                        $attrName = str_replace( ':', '|', $attrName );
                        $xml->addAttribute( $attrName, $attrVal );
#                       }
                    }

                } elseif( array_shift( $keys ) === '#' ) {

                    $node = $xml->addChild( $key, $value['#'] );

                } elseif( is_numeric( array_shift( $keys ) ) ) {

                    foreach( $value as $item ) {

                        if( strpos( $key, ':' ) ) {
                            $node = $xml->addChild( $key, NULL, substr( $key, 0, strpos( $key, ':' ) ) );
#                           $node = $xml->addChild( $key, NULL, 'http://www.w3.org/1999/xhtml' );
#                           $node = $xml->addChild( 'link', NULL, 'xhtml' );
#                           $node = $xml->addChild( 'link', NULL, 'http://www.w3.org/1999/xhtml' );
                        } else {
                            $node = $xml->addChild( $key );
                        }
                        array2xml( $item, NULL, $node );
                    }

                } else {

                        if( strpos( $key, ':' ) ) {
#                           $node = $xml->addChild( $key, NULL, 'http://www.w3.org/1999/xhtml' );
                        } else {
                            $node = $xml->addChild( $key );
                        }
#                   $node = $xml->addChild( $key );
                    array2xml( $value, NULL, $node );

                }

            } else {

                if( substr( $key, 0, 1 ) == '@' ) {
                    $xml[ substr( $key, 1 ) ] = $value;
                } elseif( strpos( $key, ':' ) ) {
#                   $xml->addChild( $key, htmlspecialchars( $value ), substr( $key, strpos( $key, ':' ) + 1 ) );
                } else {
                    $xml->addChild( $key, htmlspecialchars( $value ) );
                }

            }

        }

        if( $file !== NULL ) {

            // echo str_replace('|',':',$xml->asXML());

            $domxml = new DOMDocument('1.0');
            $domxml->preserveWhiteSpace = false;
            $domxml->formatOutput = true;
            $domxml->loadXML( str_replace('|',':',$xml->asXML()) );

            if( $file === false ) {
                return $domxml->saveXML();
            } elseif( is_writeable( dirname( DIRECTORY_BASE . $file ) ) ) {
                return $domxml->save( DIRECTORY_BASE . $file );
            } else {
                logWrite( 'impossibile scrivere il file xml, permessi insufficienti', 'filesystem', LOG_ERR );
            }

        }

    }

//    function xml2array( $file, $get_attributes = true, $priority = 'tag' ) {
    function xml2array( $contents, $get_attributes = true, $priority = 'tag' ) {

        // TODO valutare se questa funzione va bene o se è da rifare in base a quanto
        // detto per array2xml()

        // $contents = readFromFile( $file, READ_FILE_AS_STRING );

        // logWrite( 'codifica contenuto: ' . mb_detect_encoding( $contenuto ), 'xml', LOG_DEBUG );

        if( ! $contents ) {
            return array();
        }

        if( ! function_exists('xml_parser_create')) {
            logWrite( 'la funzione xml_parser_create() non esiste', 'xml', LOG_FATAL );
            return array();
        }

        $parser = xml_parser_create( '' );
        xml_parser_set_option( $parser, XML_OPTION_TARGET_ENCODING, 'UTF-8' );
        xml_parser_set_option( $parser, XML_OPTION_CASE_FOLDING, 0 );
        xml_parser_set_option( $parser, XML_OPTION_SKIP_WHITE, 1 );
        xml_parse_into_struct( $parser, trim( $contents ), $xml_values );
        xml_parser_free( $parser );

        $err = xml_get_error_code( $parser );

        if( ! empty( $err ) ) {
            logWrite( 'errore #'.xml_get_error_code( $parser ).' ('.xml_error_string( $err ).')', 'xml', LOG_ERR );
        }

        if( ! $xml_values ) {
            return array();
        } else {
            logWrite( print_r( $xml_values, true ), 'xml', LOG_DEBUG );
        }

        $xml_array = array();
        $parents = array();
        $opened_tags = array();
        $arr = array();

        $current =& $xml_array;

        $repeated_tag_index = array();

        foreach( $xml_values as $data ) {

            unset( $attributes, $value );
            extract( $data );

            $result = array();
            $attributes_data = array();

            if( isset( $value ) ) {
                if( $priority == 'tag' ) {
                    $result['#'] = $value;
                } else {
                    $result = $value;
                }
            }

            if( isset( $attributes ) and $get_attributes ) {
                foreach( $attributes as $attr => $val ) {
                    if( $priority == 'tag' ) {
                        $result['@'][$attr] = $val;
                    } else {
                        $attributes_data[$attr] = $val;
                    }
                }

            }

            if( $type == "open" ) {

                $parent[$level-1] =& $current;

                if( ! is_array( $current ) || ( ! in_array( $tag, array_keys( $current ) ) ) ) {

                    $current[$tag] = $result;

                    if( $attributes_data ) {
                        $current[$tag. '_attr'] = $attributes_data;
                    }

                    $repeated_tag_index[$tag.'_'.$level] = 1;
                    $current =& $current[$tag];

                } else {

                    if( isset( $current[$tag][0] ) ) {

                        $current[$tag][$repeated_tag_index[$tag.'_'.$level]] = $result;

                        if($attributes_data) {
                            $current[$tag][$repeated_tag_index[$tag.'_'.$level].'_attr'] = $attributes_data;
                        }

                        $repeated_tag_index[$tag.'_'.$level]++;

                    } else {

                        $current[$tag] = array( $current[$tag], $result );
                        $repeated_tag_index[$tag.'_'.$level] = 2;

                        if( isset( $current[$tag.'_attr'] ) ) {
                            $current[$tag]['0_attr'] = $current[$tag.'_attr'];
                            unset($current[$tag.'_attr']);
                        }

                        if($attributes_data) {
                            $current[$tag]['1_attr'] = $attributes_data;
                        }

                    }

                    $last_item_index = $repeated_tag_index[$tag.'_'.$level]-1;
                    $current =& $current[$tag][$last_item_index];

                }

            } elseif( $type == "complete" ) {

                if( ! isset( $current[$tag] ) ) {

                    $current[$tag] = $result;
                    $repeated_tag_index[$tag.'_'.$level] = 1;

                    if( $priority == 'attribute' && $attributes_data ) {
                        $current[$tag. '_attr'] = $attributes_data;
                    }

                } else {

                    if( isset( $current[$tag][0] ) && is_array( $current[$tag] ) ) {

                        $current[$tag][$repeated_tag_index[$tag.'_'.$level]] = $result;

                        if( $priority == 'tag' && $get_attributes && $attributes_data) {
                            $current[$tag][$repeated_tag_index[$tag.'_'.$level] . '_attr'] = $attributes_data;
                        }

                        $repeated_tag_index[$tag.'_'.$level]++;

                    } else {

                        $current[$tag] = array( $current[$tag], $result );
                        $repeated_tag_index[$tag.'_'.$level] = 1;

                        if($priority == 'tag' && $get_attributes) {

                            if( isset( $current[$tag.'_attr'] ) ) {
                                $current[$tag]['0_attr'] = $current[$tag.'_attr'];
                                unset($current[$tag.'_attr']);
                            }

                            if( $attributes_data ) {
                                $current[$tag][$repeated_tag_index[$tag.'_'.$level] . '_attr'] = $attributes_data;
                            }

                        }

                        $repeated_tag_index[$tag.'_'.$level]++;

                    }

                }

            } elseif( $type == 'close' ) {

                $current =& $parent[$level-1];

            }

        }

        return( $xml_array );

    }

        if( ! function_exists( 'xmlEntities' ) ) {
        function xmlEntities( $t ) {
            $t = iconv( 'UTF-8', 'ASCII//TRANSLIT//IGNORE', $t );
            $t = str_replace( '€', 'EURO', $t );
            $t = str_replace( ',', '.', $t );
//          $t = str_replace( 'ù', 'u', $t );
            return $t;
        }
        }

        if( ! function_exists( 'xmlFloat' ) ) {
        function xmlFloat( $t ) {
            $t = str_replace( ',', '.', sprintf( '%01.2f', $t ) );
            return $t;
        }
        }

?>