1. Question:What should we do to be able to export data into an Excel file? 

    Answer
    The most common and used way is to get data into a format supported by Excel. For example, it is possible to write a .csv file, to choose for example comma as separator between fields and then to open the file with Excel.






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  2. Question:How do you execute a PHP script from the command line? 

    Answer
    Just use the PHP command line interface (CLI) and specify the file name of the script to be executed as follows:
    php script.php






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  3. Question:How to run the interactive PHP shell from the command line interface? 

    Answer
    Just use the PHP CLI program with the option -a as follows:
    php -a






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  4. Question:What is object cloning? 

    Answer

    To remedy the problems with copying, PHP offers an explicit means for cloning an object is known as object cloning.







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  5. Question:Which programming language does PHP resemble to? 

    Answer
    PHP syntax resembles Perl and C






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