<?php abstract class AHeap extends SplHeap { public function __construct($i) { foreach ($i as $obj) { $this->insert($obj); } } } class KeySort extends AHeap { protected function compare(object $val1, $val2) { if ($val1->key == $val2->key) { if ($val1->value == $val2->value) { return 0; } if ($val1->value > $val2->value){ return -1; } else { return 1; } } if ($val1->key > $val2->key){ return -1; } else { return 1; } } } $array = array( (object) array('key' => 0, 'value' => 'z'), (object) array('key' => 0, 'value' => 'a'), (object) array('key' => 2, 'value' => 'y'), (object) array('key' => 3, 'value' => 'b'), ); $heap = new KeySort($array); foreach ($heap as $val) { echo $val->key . ' - ' . $val->value . PHP_EOL; }
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