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I have developed an application in PHP which I get questions from YQL DB , dump it to a .json file then read the file and upload the questions to QA DB.

 

I use "qa_question_create()" to insert questions into DB.Problem I am facing is: when I run the program in small interval of time, Same questions will be inserted into DB again and again.

 

How do I prevent multiple insert of same Question into qa DB, when running the PHP script in small intervals of time.
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Can't you just keep track of which ones you already added?
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Have done it with some tweaks to the inbuilt functions and files.
 I have a small doubt now.

How do I change the HTML part of this app?

I need to add a button to the page which triggers the php that I have written to load the DB with questions.

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