[英]How to get the values of rank inside the foreach loop?
我正在尝试按升序排列每所学校的排名。 例如,我只想在foreach循环外打印schoolToRank [0]的等级。 这是我按成本,人口和顶尖水平在所有学校中排名的代码:
$rankedCost = setter_asc($test);
$rankedPopulation = setter_desc(setter_desc($user_selected_population));
$rankedTopN = setter_desc(setter_desc($user_selected_top));
$echo= '';
foreach($rankedCost as $school_toRank => $data){
echo '(school = '.$school_toRank . ' is rank = ' . $data['rank']. ')';
}
echo "<br>";
foreach($rankedPopulation as $school_toRank => $data){
echo '(school = '.$school_toRank . ' is rank = ' . $data['rank']. ')';
}
echo "<br>";
foreach($rankedTopN as $school_toRank => $data){
echo '(school = '.$school_toRank . ' is rank = ' . $data['rank']. ')';
}
例如,在学校2中,等级是1-如何单独访问它以仅显示具有该等级的学校(foreach循环之外)?
您可以使用asort
方法,通过等级排序
只需在数组上使用索引:
$rankedCost[2]['rank']
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