Please let me know that what is the Optimum number of query per page while working with php+mysql ?,i have heard several number but wolud like to know from an experts who has good experiences in this regard.
As long as you don't get silly running hundreds or thousands of queries per page then it makes little difference. What is far more important is how your website in hosted.
If you have a dedicated server
Ransomware – malware that gets on your customers’ computers, encrypts their data, and extorts a hefty ransom for the decryption keys – is a surging new threat. The purpose of this eBook is to educate the reader about ransomware attacks.
Load balancing is the method of dividing the total amount of work performed by one computer between two or more computers. Its aim is to get more work done in the same amount of time, ensuring that all the users get served faster.
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions.
Consider email address RFCs:
Look at HTML5 form input element (with type=email) regex pattern: