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The SplMaxHeap class provides the main functionalities of a heap, keeping the maximum on the top.
SplMaxHeap simple example with integer values...
<?php
class MySimpleHeap extends SplMaxHeap
{
public function compare( $value1, $value2 ) {
return ( $value1 - $value2 );
}
}
$obj = new MySimpleHeap();
$obj->insert( 4 );
$obj->insert( 8 );
$obj->insert( 1 );
$obj->insert( 0 );
foreach( $obj as $number ) {
echo $number."\n";
}
/*
Output display :
8
4
1
0
*/
?>
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