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If you are new to PHP or just need to refresh your skills, this is the place to start. This series of tutorials will give you the basic knowledge you will need to create a simple PHP website.

PHP is a reflective programming language originally designed for producing dynamic web pages.[1] PHP is used mainly in server-side scripting, but can be used from a command line interface or in standalone graphical applications. Textual User Interfaces can also be created using ncurses.

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dbmexists

(PHP 3, PHP 4, PECL)

dbmexists -- Tells if a value exists for a key in a DBM database

Description

bool dbmexists ( resource dbm_identifier, string key )

Returns TRUE if there is a value associated with the key.

Parameters

dbm_identifier

The DBM link identifier, returned by dbmopen().

key

The key, as a string

Return Values

Returns TRUE on success or FALSE on failure.

See Also

dbmfetch()

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Another Useful functions:


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PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML. If you are new to PHP and want to get some idea of how it works, try the introductory tutorial. After that, check out the online manual, and the example archive sites and some of the other resources available in the links section.