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msg7086/v2ex-181180.php

Created April 3, 2015 09:22
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v2ex-181180
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v2ex-181180.php
<?php
$hash = [];
foreach($rows as &$row) {
$key = $row['period'] << 32 | $row['price'];
if (isset($hash[$key]))
$hash[$key]['num'] += $row['num'];
else {
unset($row['id']);
$hash[$key] = $row;
}
}
print_r($hash);
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