If the passed argument is a file but not an image it returns false, that will allow you to validate.Edit: The only reliable method of image validation is to make a copy of it using GD or Imagick - getimagesize can be easily hacked. For example: Please note that it does check if it's an image, but that doesn't mean it isn't an image that has been tempered with, see: php.webtutor.pl/en/2011/05/13/…There are validators for other web technologies, such as HTML, CSS, and accessibility guidelines, and these have all proven quite popular.
Your new code is just checking extension and don't have double check.
Completing a traceability matrix will ensure that the SRS is complete, that nothing has fallen through the gaps.
It will also ensure that all the requirements elicited can be traced back and justified to business requirements as well as functional requirements.
Although you may not agree on every issue, your parents political attitudes tend to shape your political attitudes.
The way we approach our day-to-day work and life is largely a result of the system we were trained in and the mentors we had along the way. Did they actually consider all of the different ways of coaching a team?
The developers will choose the most appropriate approach to prototyping depending on the situation.