Tell me how can we determine whether a variable is set?
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if you run the app program all vendor open items are cleared but is it possible to reverse the again again open items please tell me the answer
What is "print" in php?
What are sql injections, how do you prevent them and what are the best practices?
What is a query in a database?
How is it possible to parse a configuration file?
How to call javascript function in php on button click?
What is difference between python and php?
How to pass variables and data from php to javascript?
Explain the difference between urlencode and urldecode?
What are the popular content management systems (cms) in php?
What is the importance of "method" attribute in a html form?
What are the new features in php 7?