xml_error_string - PHP code example

PHP Function XML_Error_String

PHP function is an essential component of the PHP programming language that lets you group a set of statements together and execute them as a single unit. PHP functions enable you to write reusable code, making your programs more efficient, modular and maintainable. In addition, you can pass input values to PHP functions via parameters, which allows you to customize the function logic and produce different outputs.

The php function xml_error_string returns the eXtensible Markup Language (XML) parser error description. This function is part of the XML parser and you need to have it installed for working with XML documents in PHP.

In the XML parser you can use the utf8_decode and utf8_encode functions to convert characters between different encodings and to encode characters into the XML encoding. You also need the xml_parse and xml_get_current_line_index functions for working with XML data.

The xml_parse function starts the XML parsing process. It takes the XML document as an argument and it returns 0 on success and 1 if an error occurs.

xml_error_string example

        $encoding    = $this->_findEncoding($filename);
        $this->_file = xml_parser_create($encoding);
        xml_set_object($this->_file, $this);
        xml_parser_set_option($this->_file, XML_OPTION_CASE_FOLDING, 0);
        xml_set_element_handler($this->_file, "_startElement", "_endElement");
        xml_set_character_data_handler($this->_file, "_contentElement");

        if (!xml_parse($this->_file, file_get_contents($filename))) {
            $ex = sprintf('XML error: %s at line %d of file %s',
                          xml_error_string(xml_get_error_code($this->_file)),
                          xml_get_current_line_number($this->_file),
                          $filename);
            xml_parser_free($this->_file);
            throw new Zend_Translate_Exception($ex);
        }

        return $this->_data;
    }

    private function _startElement($file, $name, $attrib)
    {

        $encoding = $this->_findEncoding($filename);
        $this->_file = xml_parser_create($encoding);
        xml_set_object($this->_file, $this);
        xml_parser_set_option($this->_file, XML_OPTION_CASE_FOLDING, 0);
        xml_set_element_handler($this->_file, "_startElement", "_endElement");
        xml_set_character_data_handler($this->_file, "_contentElement");

        if (!xml_parse($this->_file, file_get_contents($filename))) {
            $ex = sprintf('XML error: %s at line %d of file %s',
                          xml_error_string(xml_get_error_code($this->_file)),
                          xml_get_current_line_number($this->_file),
                          $filename);
            xml_parser_free($this->_file);
            throw new Zend_Translate_Exception($ex);
        }

        return $this->_data;
    }

    private function _startElement($file, $name, $attrib)
    {

$this->_target = $locale;

        $encoding = $this->_findEncoding($filename);
        $this->_file = xml_parser_create($encoding);
        xml_set_object($this->_file, $this);
        xml_parser_set_option($this->_file, XML_OPTION_CASE_FOLDING, 0);
        xml_set_element_handler($this->_file, "_startElement", "_endElement");
        xml_set_character_data_handler($this->_file, "_contentElement");

        if (!xml_parse($this->_file, file_get_contents($filename))) {
            $ex = sprintf('XML error: %s at line %d of file %s',
                          xml_error_string(xml_get_error_code($this->_file)),
                          xml_get_current_line_number($this->_file),
                          $filename);
            xml_parser_free($this->_file);
            throw new Zend_Translate_Exception($ex);
        }

        return $this->_data;
    }

    private function _startElement($file, $name, $attrib)
    {

if (($stream = fopen($wrapper, 'r+')) &&
                fwrite($stream, $data) &&
                rewind($stream))
            {
                //Parse by chunks not to use too much memory                 do
                {
                    $stream_data = fread($stream, 1048576);
                    if (!xml_parse($xml, $stream_data === false ? '' : $stream_data, feof($stream)))
                    {
                        $this->error_code = xml_get_error_code($xml);
                        $this->error_string = xml_error_string($this->error_code);
                        $return = false;
                        break;
                    }
                } while (!feof($stream));
                fclose($stream);
            }
            else
            {
                $return = false;
            }

        $encoding = $this->_findEncoding($filename);
        $this->_file = xml_parser_create($encoding);
        xml_set_object($this->_file, $this);
        xml_parser_set_option($this->_file, XML_OPTION_CASE_FOLDING, 0);
        xml_set_element_handler($this->_file, "_startElement", "_endElement");
        xml_set_character_data_handler($this->_file, "_contentElement");

        if (!xml_parse($this->_file, file_get_contents($filename))) {
            $ex = sprintf('XML error: %s at line %d of file %s',
                          xml_error_string(xml_get_error_code($this->_file)),
                          xml_get_current_line_number($this->_file),
                          $filename);
            xml_parser_free($this->_file);
            throw new Zend_Translate_Exception($ex);
        }

        return $this->_data;
    }

    /** * Internal method, called by xml element handler at start * * @param resource $file File handler * @param string $name Elements name * @param array $attrib Attributes for this element */

        xml_set_object( $this->parser, $this );
        xml_set_element_handler($this->parser,
                'feed_start_element', 'feed_end_element' );

        xml_set_character_data_handler( $this->parser, 'feed_cdata' );

        $status = xml_parse( $this->parser, $source );

        if (! $status ) {
            $errorcode = xml_get_error_code( $this->parser );
            if ( $errorcode != XML_ERROR_NONE ) {
                $xml_error = xml_error_string( $errorcode );
                $error_line = xml_get_current_line_number($this->parser);
                $error_col = xml_get_current_column_number($this->parser);
                $errormsg = "$xml_error at line $error_line, column $error_col";

                $this->error( $errormsg );
            }
        }

        xml_parser_free( $this->parser );
        unset( $this->parser );

$xml_parser = xml_parser_create();

// Set the functions to handle opening and closing tags. xml_set_element_handler( $xml_parser, 'startElement', 'endElement' );

if ( ! xml_parse( $xml_parser, $opml, true ) ) {
    printf(
        /* translators: 1: Error message, 2: Line number. */
        __( 'XML Error: %1$s at line %2$s' ),
        xml_error_string( xml_get_error_code( $xml_parser ) ),
        xml_get_current_line_number( $xml_parser )
    );
}

// Free up memory used by the XML parser. xml_parser_free( $xml_parser );
unset( $xml_parser );

$this->content = '';

        $ret = true;

        $fp = fopen($this->FILE, "r");
        while ($data = fread($fp, 4096)) {
            if($this->debug) $this->content .= $data;

            if(!xml_parse($parser, $data, feof($fp))) {
                /* translators: 1: Error message, 2: Line number. */
                trigger_error(sprintf(__('XML Error: %1$s at line %2$s')."\n",
                    xml_error_string(xml_get_error_code($parser)),
                    xml_get_current_line_number($parser)));
                $ret = false;
                break;
            }
        }
        fclose($fp);

        xml_parser_free($parser);
        unset($parser);

        restore_error_handler();

$encoding      = $this->_findEncoding($filename);
        $this->_target = $locale;
        $this->_file   = xml_parser_create($encoding);
        xml_set_object($this->_file, $this);
        xml_parser_set_option($this->_file, XML_OPTION_CASE_FOLDING, 0);
        xml_set_element_handler($this->_file, "_startElement", "_endElement");
        xml_set_character_data_handler($this->_file, "_contentElement");

        if (!xml_parse($this->_file, file_get_contents($filename))) {
            $ex = sprintf('XML error: %s at line %d of file %s',
                          xml_error_string(xml_get_error_code($this->_file)),
                          xml_get_current_line_number($this->_file),
                          $filename);
            xml_parser_free($this->_file);
            throw new Zend_Translate_Exception($ex);
        }

        return $this->_data;
    }

    private function _startElement($file, $name, $attrib)
    {