我已经能够使用表下方的代码从此表中获取多个详细信息......我知道该表看起来很奇怪，但这是客户端提供的可用数据表。 id | class | gender | e1 | e2 | d1 | d2 ---------------------------------------------------------------------------------------------------------------------------------------------------------------- 1 | class1 | male | ,first, first, first | ,first, first, first | , 2019-12-24,2019-12-24,2019-12-24 | ,2019-12-04,2019-11-21,2019-11-20 | 2 | class2 | female | ,second, second, second | ,second, second, second | ,2019-12-04,2019-11-21,2019-11-20 | , 2019-12-20,2019-12-20,2019-12-20 3 | class3 | male | ,first, first, first | ,third, third, third | ,2019-12-06,2019-12-13,2019-12-19 | ,2019-12-06,2019-12-13,2019-12-19 4 | class4 | male | ,third, third, third | ,third, third, third | ,2019-12-20,2019-12-20,2019-12-20 | ,2019-12-24,2019-12-24,2019-12-24 5 | class5 | female | ,second, second | ,third, third, third | ,2019-12-24,2019-12-24,2019-12-24 | ,2019-12-24,2019-12-24,2019-12-24下面是我用来获取详细信息的代码：$datfrm ="00/00/0001";$datto ="31/12/2099";$gender="male";$place_map = ['first' => 1, 'second' => 0.8, 'third' => 0.4];//e1view$query = "SELECT e1 FROM eyfstb WHERE gender = '$gender'";// perform the query ...if ($result = $db->query($query)) { $finalScore1 = 0; $scores=""; $last_score=""; /* fetch associative array */ while ($row = $result->fetch_assoc()) { $efind = $row['e1']; if (substr_count($efind, ",") >'2'){ $scores = explode(',', $row['e1']); $last_score = trim($scores[count($scores)-1]); $finalScore1 += $place_map[$last_score]; } }}
5 回答
汪汪一只猫
TA贡献1898条经验 获得超8个赞
您想要跳过字段中不正好有 3 个元素的行e1。在行：之后 $efind = explode(',', $efind);，添加以下内容：
if (count($efind) !== 3) {
continue;
}在两个地方都添加这个。
代码中的另一个问题是，当您尝试比较日期时，您将字符串与<=和进行比较>=。您应该使用strcmp()。
如果不知道表的全部内容，就很难看出未定义索引错误来自何处。
梵蒂冈之花
TA贡献1900条经验 获得超5个赞
首先，更改您的日期
$datfrm ="00/00/0001";
$datto ="31/12/2099";
到
$datfrm ="00-00-0001";
$datto ="31-12-2099";
然后加
if (empty($last_score)) {
$last_score=0;
}else{
}
之间
$last_score = trim($scores[count($scores)-1]);
和
$finalScore15 += $place_map[$last_score];
那应该可以完全解决你的问题。
慕桂英3389331
TA贡献2036条经验 获得超8个赞
你正在做
if ($result = $db->query($query)) {
$finalScore1 = 0;
......
}
if ($result = $db->query($query)) {
$finalScore2 = 0;
.......
}
echo ($finalscore +$finalscore2);
试着做：
$finalScore1 = 0;
if ($result = $db->query($query)) {
......
}
$finalScore2 = 0;
if ($result = $db->query($query)) {
.......
}
echo ($finalscore +$finalscore2);
你还没有定义，在所有上面定义：
$place_map = ['first' => 1, 'second' => 0.8, 'third' => 0.4];
希望这些可以解决您的错误，根据数据和代码休息结果
DIEA
TA贡献1820条经验 获得超2个赞
我希望这个能帮上忙
<?php
$Date1 = '01-10-2010';
$Date2 = '07-12-2010';
$array = array();
$range = 0;
$Variable1 = strtotime($Date1);
$Variable2 = strtotime($Date2);
for ($currentDate = $Variable1; $currentDate <= $Variable2;
$currentDate += (86400)) {
$Store = date('Y-m-d', $currentDate);
$array[] = $Store;
$range++;
}
for ($i=0; $i < $range; $i++) {
echo $array[$i];
}
?>
MYYA
TA贡献1868条经验 获得超4个赞
我在理解你想要从 e1 和 e2 中得到什么时遇到了一些困难 - 假设它只是该字段中的最后一个值。如果我错了，你可以在函数 $eview 中更正它。
下面的代码使用您发布的数据产生 4.2 的结果。
$datfrm = ""; // or something like '2010-01-01'
$datto = '2200'; // or something like '2015-12-01'
$gender="male";
$place_map = ['first' => 1, 'second' => 0.8, 'third' => 0.4];
// My understanding of the code is to get the weighted value of the
// last word in the column - if that's wrong, you can change this
// I am assuming you want the date that corresponded to the item you used
// for the final score, so if wrong, you need to change this.
// Also assume there will be the same number of dates as 'e's
//
// return false if bad value, or 0 if not in date range
$eview = function ($row, $ecol, $dcol) use ($place_map, $datfrm, $datto) {
$parts = array_filter(array_map('trim', explode(",", $row[$ecol])));
$dates = array_filter(array_map('trim', explode(",", $row[$dcol])));
if (!$parts || count($parts) != count($dates)) {
echo "Expected same number of parts and dates!\n";
return false;
}
$date = array_pop($dates); // Getting last date...
return ($date >= $datfrm && $date < $datto) ?
($place_map[array_pop($parts)] ?? false) : 0;
};
$finalScore1 = $finalScore2 = 0;
// perform the query ...
$query = "SELECT e1, e2, d1, d2 FROM eyfstb WHERE gender = '{$gender}'";
if ($result = $db->query($query)) {
/* fetch associative array */
while ($row = $result->fetch_assoc()) {
$finalScore1 += $eview($row, 'e1', 'd1') ?: 0;
$finalScore2 += $eview($row, 'e2', 'd2') ?: 0;
}
}
echo ($finalScore1+$finalScore2) . "\n";
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