wp-admin/link-parse-opml.php
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<?php /** * Parse OPML XML files and store in globals. * * @package WordPress * @subpackage Administration */ if ( ! defined( 'ABSPATH' ) ) { die(); } /** * @global string $opml */ global $opml; /* function startElement() – XML callback function for the start of a new XML tag. */ /* function endElement() – XML callback function that is called at the end of a XML tag. */ // Create an XML parser. if ( ! function_exists( 'xml_parser_create' ) ) { trigger_error( __( "PHP's XML extension is not available. Please contact your hosting provider to enable PHP's XML extension." ) ); wp_die( __( "PHP's XML extension is not available. Please contact your hosting provider to enable PHP's XML extension." ) ); } $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 );