How check variable is set or not in php?


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More PHP Interview Questions

How can we define a variable accessible in functions of a php script?

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i am a 3yr diploma holder(CSE) from bangalore and i got job as php developer.. starting 7.5k... but i dont know what is the future carreer scop for diploma holders(for me)...plz help

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what is mean php ? is it designingtool or language? how ill create website using by php?

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What is the difference between echo print and print_r in php?

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Is php easy language to learn?

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Does php require a web server?

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How to increase the maximum execution time of a script in php?

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What is string function sql?

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What are the features of php?

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Differences between get and post methods?

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How to open a file for writing?

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Explain what does the unlink() function means?

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