Why does php start with variables?


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What is session_start () in php?

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"mysql_fetch_row — Get a result row as an enumerated array",this sentence comes from the PHP offical manual.However ,i can not understand the words "enumerated array".I need some help.Thanks a lot to everyone that reply.

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What is php form validation?

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I have two radio button, i click one radio button display one dropdown box, one text field. and then click another radio button display one text field.so any one give me good idea plz.....i used <div id="" style=display:none> but not work..

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What function do we use to find length of string, and length of array?

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How do I find environment variables?

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Is PHP runs on different platforms (Windows, Linux, Unix, etc.)?

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what are Implode and Explode functions?

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Does wordpress still use php?

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What is a simple php method to make a cross domain data request?

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What is the meaning of die in php?

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What is different types of visibility?

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