我有一个名为的页面,该页面view.htm
根据用户分配给金牌、银牌和铜牌的内容以及他们是否选择使用 gdp 或人口来计算得分来显示结果view.php
。我需要找到一种方法来按计算的分数对这些结果进行排序,然后将其限制在前 10 名。我的数据是从 mysql 数据库接收的,分数是在 php 页面中计算的。我正在使用json_encode
对数据进行编码以将其显示在页面上。$results
是一个二维数组。这是从 view.php 中回显出来的结果:
{"gold":"0","silver":"0","bronze":"1","gdp":"20343461030","population":"34385000",
"country_name":"Afghanistan","score":"0.029082448742184"},{"gold":"0",
"silver":"0","bronze":"0","gdp":"12959563902","population":"3205000",
"country_name":"Albania","score":"0"},{"gold":"1","silver":"0","bronze":"0",
"gdp":"188681000000","population":"35468000","country_name":"Algeria",
"score":"0.14097214390436"}
以下是用于计算分数的 php 代码:
$results = array();
while ($row = $res->fetchRow()){
$resGold = $row['gold'];
$resSilver = $row['silver'];
$resBronze = $row['bronze'];
$resGdp = $row['gdp'];
$resPopulation = $row['population'];
$resCountry = $row['country_name'];
$gold_score = ($resGold * $gold_value);
$silver_score = ($resSilver * $silver_value);
$bronze_score = ($resBronze * $bronze_value);
$total_medals = ($resGold + $resSilver + $resGold);
$perMillion = $resPopulation/1000000;
$perBillion = $resGdp/1000000000;
$score_pop = (($gold_score + $silver_score + $bronze_score)/$perMillion);
$score_gdp = ($perBillion/($gold_score + $silver_score + $bronze_score + 1));
if($population == 'true'){
$row['score'] = "$score_pop";
array_push($results,$row);
}
else if($gdp == 'true'){
$row['score'] = "$score_gdp";
array_push($results,$row);
}
}
任何帮助表示赞赏。谢谢