Core Function IsKeySet - Revision history

UberFoX: 1 revision

2015-06-14T12:37:01Z

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UberFoX: 1 revision

2014-08-11T21:40:49Z

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UberFoX: /* Remarks */

2014-08-10T17:23:59Z

Remarks

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	=== Remarks ===		=== Remarks ===
−
−	~~This cannot be used to check if a array index exists for that use IsIndexSet() instead.~~

	Alias' for this command		Alias' for this command

UberFoX: /* Example */

2013-10-03T01:51:55Z

Example

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	println( "Key[Three] is : " . (IsKeySet($a, "Three") ? "SET" : "NOT SET") );		println( "Key[Three] is : " . (IsKeySet($a, "Three") ? "SET" : "NOT SET") );
	println( "Key[Four] is : " . (IsKeySet($a, "Four") ? "SET" : "NOT SET") );		println( "Key[Four] is : " . (IsKeySet($a, "Four") ? "SET" : "NOT SET") );
		+	</syntaxhighlight>
		+
		+	Alternative way using IsSet()
		+
		+	<syntaxhighlight lang="sputnik">
		+	IsSet($a) # Check if $a is set
		+	IsSet($a['Test']) # Check if $a (as array) index 'Test' is set
		+	IsSet($a['Test']['Cat']) # Check if $a (as array) index 'Test' (as array) index 'Cat' is set
	</syntaxhighlight>		</syntaxhighlight>

	[[Category:Core Function]]		[[Category:Core Function]]

UberFoX at 12:49, 28 January 2013

2013-01-28T12:49:44Z

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	This cannot be used to check if a array index exists for that use IsIndexSet() instead.		This cannot be used to check if a array index exists for that use IsIndexSet() instead.
		+
		+	Alias' for this command
		+	<pre>
		+	IsIndexSet()
		+	</pre>

	=== Example ===		=== Example ===

UberFoX: Created page with "

 IsKeySet( ,  )

=== Description === Check if given key exists within an array (hash/dictionary). === Parameters === ==== array ==== The array to use...."

2011-12-08T17:56:33Z

Created page with "<pre> IsKeySet( <array>, <key> ) </pre> === Description === Check if given key exists within an array (hash/dictionary). === Parameters === ==== array ==== The array to use...."

New page

<pre>
IsKeySet( <array>, <key> )
</pre>

=== Description ===

Check if given key exists within an array (hash/dictionary).

=== Parameters ===

==== array ====

The array to use.

==== key ====

The Key to check.

=== Return Value ===

Success - Returns 1.

Failure - Returns 0.

=== Remarks ===

This cannot be used to check if a array index exists for that use IsIndexSet() instead.

=== Example ===

<syntaxhighlight lang="sputnik">
$a = array("One" => "FoX", "Two" => "Cat", "Three" => "Dog");

println( "Key[One] is : " . (IsKeySet($a, "One") ? "SET" : "NOT SET") );
println( "Key[Two] is : " . (IsKeySet($a, "Two") ? "SET" : "NOT SET") );
println( "Key[Three] is : " . (IsKeySet($a, "Three") ? "SET" : "NOT SET") );
println( "Key[Four] is : " . (IsKeySet($a, "Four") ? "SET" : "NOT SET") );

// Delete a key and do it again
unset($a["Two"]);
println( "Key[One] is : " . (IsKeySet($a, "One") ? "SET" : "NOT SET") );
println( "Key[Two] is : " . (IsKeySet($a, "Two") ? "SET" : "NOT SET") );
println( "Key[Three] is : " . (IsKeySet($a, "Three") ? "SET" : "NOT SET") );
println( "Key[Four] is : " . (IsKeySet($a, "Four") ? "SET" : "NOT SET") );
</syntaxhighlight>

[[Category:Core Function]]