libxml_get_last_error - PHP code example

PHP Function - LibXMLGet_Last_Error

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PHP has a function called libxml_get_last_error that retrieves the last error from the libxml error buffer. This function does not take any arguments. It returns an array of LibXMLError objects if there are errors in the libxml error buffer or an empty array otherwise. This function is introduced in php version 5 and works with all the later versions of php.

This function is very useful in cases when you need to retrieve only the latest error. This is very simple to use and easy to implement in your application. Let’s take a look at the example below to understand this function better. This is a very basic example, but it should be sufficient to get an idea about this function. Hope you like it.

libxml_get_last_error example

                        $this->tag_close(null, $tagName);
                    }
                    break;
                case constant('XMLReader::TEXT'):

                case constant('XMLReader::CDATA'):
                    $this->cdata(null, $xml->value);
                    break;
            }
        }
        if ($error = libxml_get_last_error())
        {
            $this->error_code = $error->code;
            $this->error_string = $error->message;
            $this->current_line = $error->line;
            $this->current_column = $error->column;
            return false;
        }

        return true;
    }

$this->assertEquals('Fuzzy', $metadata['notes'][1]['content']);
    }

    public function testLoadVersion2WithMultiSegmentUnit()
    {
        $loader = new XliffFileLoader();
        $resource = __DIR__.'/../fixtures/resources-2.0-multi-segment-unit.xlf';
        $catalog = $loader->load($resource, 'en', 'domain1');

        $this->assertSame('en', $catalog->getLocale());
        $this->assertEquals([new FileResource($resource)], $catalog->getResources());
        $this->assertFalse(libxml_get_last_error());

        // test for "foo" metadata         $this->assertTrue($catalog->defines('foo', 'domain1'));
        $metadata = $catalog->getMetadata('foo', 'domain1');
        $this->assertNotEmpty($metadata);
        $this->assertCount(1, $metadata['notes']);

        $this->assertSame('processed', $metadata['notes'][0]['category']);
        $this->assertSame('true', $metadata['notes'][0]['content']);

        // test for "bar" metadata

  protected function parseResourceXml($data, $url) {
    // Enable userspace error handling.     $was_using_internal_errors = libxml_use_internal_errors(TRUE);
    libxml_clear_errors();

    $content = simplexml_load_string($data, 'SimpleXMLElement', LIBXML_NOCDATA);
    // Restore the previous error handling behavior.     libxml_use_internal_errors($was_using_internal_errors);

    $error = libxml_get_last_error();
    if ($error) {
      libxml_clear_errors();
      throw new ResourceException($error->message, $url);
    }
    elseif ($content === FALSE) {
      throw new ResourceException('The fetched resource could not be parsed.', $url);
    }

    // Convert XML to JSON so that the parsed resource has a consistent array     // structure, regardless of any XML attributes or quirks of the XML parser.     $data = Json::encode($content);

throw new NotEncodableValueException('Invalid XML data, it cannot be empty.');
        }

        $internalErrors = libxml_use_internal_errors(true);
        libxml_clear_errors();

        $dom = new \DOMDocument();
        $dom->loadXML($data, $context[self::LOAD_OPTIONS] ?? $this->defaultContext[self::LOAD_OPTIONS]);

        libxml_use_internal_errors($internalErrors);

        if ($error = libxml_get_last_error()) {
            libxml_clear_errors();

            throw new NotEncodableValueException($error->message);
        }

        $rootNode = null;
        $decoderIgnoredNodeTypes = $context[self::DECODER_IGNORED_NODE_TYPES] ?? $this->defaultContext[self::DECODER_IGNORED_NODE_TYPES];
        foreach ($dom->childNodes as $child) {
            if (\in_array($child->nodeType, $decoderIgnoredNodeTypes, true)) {
                continue;
            }