libxml_clear_errors()

The libxml_clear_errors() function in PHP clears the internal error buffer populated by libxml functions.

What is libxml_clear_errors() Function?

Available since PHP 5.1.0, this built-in function returns void. It is typically called after parsing or validating an XML document to reset the error state.

How to Use libxml_clear_errors() Function

To ensure errors are captured in the internal buffer that this function clears, enable internal error handling with libxml_use_internal_errors(true) before loading or validating the document. Then, call libxml_clear_errors() to reset the buffer.

Here is an example of how to use the libxml_clear_errors() function:

How to Use libxml_clear_errors() Function in PHP?

<‌?php
  // Enable internal error handling to capture errors in the buffer
  libxml_use_internal_errors(true);

  // Load an XML file into a DOMDocument object
  $doc = new DOMDocument();
  $doc->load('example.xml');

  // Validate the XML document against a schema
  if ($doc->schemaValidate('example.xsd')) {
    echo "The XML document is valid.";
  } else {
    echo "The XML document is not valid.";
  }

  // Clear any errors that were generated by the libxml functions
  libxml_clear_errors();
?>

Conclusion

The libxml_clear_errors() function provides a straightforward way to manage libxml's internal error buffer. By resetting the buffer after operations like DOMDocument::load() or DOMDocument::schemaValidate(), you can prevent error accumulation in long-running scripts.

Practice

What does the 'libxml_clear_errors()' function in PHP do?

It clears the libxml error buffer.It generates a new libxml error buffer.It returns the libxml error buffer.It handles the errors in libxml.