What are invalid characters in XML

The only illegal characters are &, < and > (as well as " or ' in attributes, depending on which character is used to delimit the attribute value: attr="must use &quot; here, ' is allowed" and attr='must use &apos; here, " is allowed').

They’re escaped using XML entities, in this case you want &amp; for &.

Really, though, you should use a tool or library that writes XML for you and abstracts this kind of thing away for you so you don’t have to worry about it.

Related Posts:

  1. How do I comment out a block of tags in XML?
  2. What does
  3. How to use XPath contains() here?
  4. Looking for a clear description of Excel’s .xlsx XML format
  5. Parse XML using JavaScript [duplicate]
  6. (Python) AttributeError: ‘NoneType’ object has no attribute ‘text’
  7. XSLT-FO for-each
  8. java.net.MalformedURLException: no protocol
  9. Meaning of –
  10. XSLT for each loop on simple XML
  11. Is XML a programming language?
  12. XML Parsing Error: not well-formed
  13. XPath: Get parent node from child node
  14. What is the difference between Inclusive and Exclusive OR?
  15. Manifest Merger failed with multiple errors in Android Studio
  16. xmlns, xmlns:xsi, xsi:schemaLocation, and targetNamespace?
  17. How can I escape “&” in XML?
  18. How to fix error: The markup in the document following the root element must be well-formed
  19. What’s “tools:context” in Android layout files?
  20. How to add a newline (line break) in XML file?
  21. Error -1072896636 “DTD Prohibited” when opening xml file in Excel, what do I do?
  22. How to define xsi:type as an attribute in XML-schema?
  23. How to implement if-else statement in XSLT?
  24. The ‘packages’ element is not declared
  25. Getting attribute using XPath
  26. understanding position() function in XSLT
  27. android.support.design.widget.CoordinatorLayout error
  28. How to parse XML in Bash?
  29. YAML compared to XML
  30. URI is not registered (Settings | Languages & Frameworks | Schemas and DTDs) in applicationContext.xml
  31. Import WordPress xml file larger than 8mb
  32. parse XML from URL (via SOAP)
  33. How can I bulk update all posts without making changes?
  34. Problems with creating hook that updates XML
  35. Features in Houzez are not loading in Backend from API
  36. WP All Import: Feeds of Feeds [closed]
  37. Is there an XML Web Service that can get posts, categories and other data from the site?
  38. Receive error exception using xampp with wordpress
  39. Work with xml file and WordPress
  40. Moving WordPress to a different directory – update XML Post File?
  41. WordPress importer / problem with images
  42. I need a standalone script in web root but still have access to the database
  43. stop duplicate post
  44. Importing feeds with PHP
  45. Create XML sitemap in wordpress
  46. How to make an xml file (just the xml file) available at a specific url?
  47. problem of path with xml file
  48. xml generator script wordpress [closed]
  49. How do I comment out a block of tags in XML?
  50. AttributeError: ‘list’ object has no attribute ‘replace’ when trying to remove character
  51. What is the best/simplest way to read in an XML file in Java application?
  52. XML Parsing Error: no root element found Location in Console FF
  53. What is the best open XML parser for C++?
  54. How to parse XML data in SQL server table
  55. “ArrayAdapter requires the resource ID to be a TextView” XML problems
  56. How to read and write XML files?
  57. Root element is missing
  58. What is ?
  59. Read XML file using javascript
  60. XML Error: Extra content at the end of the document
  61. What is the required format for importing posts into WordPress?
  62. Hook for URL Request
  63. How to re-Import the WordPress XML file after editing?
  64. Create custom page in WooCommerce
  65. How can I get an XML export of my 1K+ posts WordPress instance?
  66. Save page data to an xml file
  67. WordPress trims off the forward slash when import
  68. Create Posts using Import>RSS/WXR/XML and pass values to Custom Fields
  69. Create XML files on post edit screen
  70. Importing wordpress. xml file on new installation
  71. Output JSON object with woocommerce products
  72. Loading posts via AJAX in a hidden div with updated URL?
  73. Importing from XML is ignoring serialized custom field
  74. Publish an XML feed from a CPT with ACF fields?
  75. The problem with WordPress Importer
  76. RSS/XML of all Categories and/or Tags
  77. Post processing of uploaded file
  78. Using WPDB to output raw XML fails because of wp-blog-header.php
  79. update_post_meta, xml parser
  80. WordPress ajax-action failing because of newline in response
  81. How to import XML to WordPress as post and custom fields?
  82. how to convert XML from URL to HTML
  83. Error in importing wordpress xml [closed]
  84. Export post data with xml to other site using php soap
  85. WordPress create custom XML RSS feed template
  86. Request failed due to an error: (http_request_fail
  87. import svg-files from wxr – (upload works, import not)
  88. WordPress post insertion from PHP file
  89. How to import several big Import XMLs?
  90. How can I export data without using any import/export plugin
  91. How to replace a specific html tag in bulk?
  92. Bulk insert posts is really slow and skips entries
  93. ExpressionEngine Export/Import Issues
  94. Import xml feed
  95. WordPress removes namespace part from my tags in RSS feed
  96. How to replace all images within exported xml files to demo.jpg?
  97. Adapting a php array to WordPress
  98. add conditionals to a displayed external xml feed
  99. Embedded Feed Update
  100. Feed RSS problem on WordPress, need it for Google News

Leave a Comment

error code: 523