XML and PHP

Handling Errors

During the initial stages of application development, it’s possible to get by without using error handlers in your code; however, as an application is being packaged for release, graceful error handling and recovery becomes a must.

PHP allows developers to accomplish this error handling via its xml_get_error_code() function (which prints the error code returned by the parser when it hits a bump) and its xml_error_string() function, (which returns a short, human-readable error message corresponding to the error code). Table 2.2 is a list of error codes and their corresponding named constants, together with what they mean.

Table 2.2. SAX Parser Error Codes

Error Code	Error Constant	Meaning
1	XML_ERROR_NO_MEMORY	Parser out of memory ...