Core Function IsKeySet
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(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....") |
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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. | ||
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| + | Alias' for this command | ||
| + | <pre> | ||
| + | IsIndexSet() | ||
| + | </pre> | ||
=== Example === | === Example === | ||
Revision as of 12:49, 28 January 2013
IsKeySet( <array>, <key> )
Contents |
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.
Alias' for this command
IsIndexSet()
Example
$a = array("One" => "FoX", "Two" => "Cat", "Three" => "Dog"); println( "Key[One] is : " . (IsKeySet($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") );
