how to tell if variable is defined? 1

[imstillatwork]

In Cold Fusion we use

<cfif IsDefined(&quot;variable&quot>
Use the #variable#
</cfif>

If that &quot;variable&quot; does not exist, this IF would be skipped.

how does me do this in PHP? (very new here, 1st try with php)

 

[sleipnir214]

For a scalar variable, there is isset(). To determine whether a particular array element exists, you can use isset($myarray[<myelement>]) or array_key_exists (&quot;<myelement>&quot;, $myarray).

For more information on PHP's variable functions, read here:

http://www.php.net/manual/en/ref.variables.php

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