How to remove white spaces from the beginning and/or the end of a string in php?


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Can php run without server?

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What is constructors and destructors?

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What is the scope of a variable defined in a function?

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What is the difference between include and include_once ? Which is one is good in terms of performance ?

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Explain how can we increase the execution time of a php script?

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List data types in PHP?

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Explain about PHP filter and why it should be used?

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When you will get the error "Cannot add header information"?

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Are php variables global?

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