Core Function Unset
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| − | unset( $a ); // Delete single variable | + | unset( $a ); // Delete single variable named "a" |
| + | unset( "a" ); // Delete single variable named "a" | ||
unset( $a[500] ); // Delete variable from array | unset( $a[500] ); // Delete variable from array | ||
unset( $a["test"] ); // Delete variable from hash | unset( $a["test"] ); // Delete variable from hash | ||
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[[Category:Core Function]] | [[Category:Core Function]] | ||
Revision as of 05:18, 3 February 2013
Unset( $variable )
Contents |
Description
Delete a variable
Parameters
$variable
A variable to delete.
OR a string containing the variables name
Return Value
None
Remarks
This can be used to delete DLLStructs, GUI objects and Classes.
Its worth noting to delete from an array you must use the array directly example unset( $a[400] ) you cannot place that element into a variable then expect to unset it and remove it from the array it will not instead it will simple set the element int the array to zero.
Example
unset( $a ); // Delete single variable named "a" unset( "a" ); // Delete single variable named "a" unset( $a[500] ); // Delete variable from array unset( $a["test"] ); // Delete variable from hash
