Php 如何从数组中查找不同的数并求和？
我读了一些文章，搜索了一些主题，但没有任何帮助。我是PHP的初学者。我有一个数组，其中的变量是Php 如何从数组中查找不同的数并求和？,php,arrays,sum,Php,Arrays,Sum,我读了一些文章，搜索了一些主题，但没有任何帮助。我是PHP的初学者。我有一个数组，其中的变量是$qA01_1到$qA30_5，它们的值可以是不同的0、1或5。从数组中，我想找到所有值为1的变量并求和。5号也一样 $qA01_1 = $_SESSION['qA01_1']; $qA01_2 = $_SESSION['qA01_2']; $qA01_3 = $_SESSION['qA01_3']; $qA01_4 = $_SE
$qA01_1$qA30_5 $qA01_1 = $_SESSION['qA01_1'];
$qA01_2 = $_SESSION['qA01_2'];
$qA01_3 = $_SESSION['qA01_3'];
$qA01_4 = $_SESSION['qA01_4'];
$qA01_5 = $_SESSION['qA01_5'];
$qA02_1 = $_SESSION['qA02_1'];
$qA02_2 = $_SESSION['qA02_2'];
$qA02_3 = $_SESSION['qA02_3'];
$qA02_4 = $_SESSION['qA02_4'];
$qA02_5 = $_SESSION['qA02_5'];
$qA03_1 = $_SESSION['qA03_1'];
$qA03_2 = $_SESSION['qA03_2'];
$qA03_3 = $_SESSION['qA03_3'];
$qA03_4 = $_SESSION['qA03_4'];
$qA03_5 = $_SESSION['qA03_5'];
$qA04_1 = $_SESSION['qA04_1'];
$qA04_2 = $_SESSION['qA04_2'];
$qA04_3 = $_SESSION['qA04_3'];
$qA04_4 = $_SESSION['qA04_4'];
$qA04_5 = $_SESSION['qA04_5'];
$qA05_1 = $_SESSION['qA05_1'];
$qA05_2 = $_SESSION['qA05_2'];
$qA05_3 = $_SESSION['qA05_3'];
$qA05_4 = $_SESSION['qA05_4'];
$qA05_5 = $_SESSION['qA05_5'];
$qA06_1 = $_SESSION['qA06_1'];
$qA06_2 = $_SESSION['qA06_2'];
$qA06_3 = $_SESSION['qA06_3'];
$qA06_4 = $_SESSION['qA06_4'];
$qA06_5 = $_SESSION['qA06_5'];
$qA07_1 = $_SESSION['qA07_1'];
$qA07_2 = $_SESSION['qA07_2'];
$qA07_3 = $_SESSION['qA07_3'];
$qA07_4 = $_SESSION['qA07_4'];
$qA07_5 = $_SESSION['qA07_5'];
$qA08_1 = $_SESSION['qA08_1'];
$qA08_2 = $_SESSION['qA08_2'];
$qA08_3 = $_SESSION['qA08_3'];
$qA08_4 = $_SESSION['qA08_4'];
$qA08_5 = $_SESSION['qA08_5'];
$qA09_1 = $_SESSION['qA09_1'];
$qA09_2 = $_SESSION['qA09_2'];
$qA09_3 = $_SESSION['qA09_3'];
$qA09_4 = $_SESSION['qA09_4'];
$qA09_5 = $_SESSION['qA09_5'];
$qA10_1 = $_SESSION['qA10_1'];
$qA10_2 = $_SESSION['qA10_2'];
$qA10_3 = $_SESSION['qA10_3'];
$qA10_4 = $_SESSION['qA10_4'];
$qA10_5 = $_SESSION['qA10_5'];
$qA11_1 = $_SESSION['qA11_1'];
$qA11_2 = $_SESSION['qA11_2'];
$qA11_3 = $_SESSION['qA11_3'];
$qA11_4 = $_SESSION['qA11_4'];
$qA11_5 = $_SESSION['qA11_5'];
$qA12_1 = $_SESSION['qA12_1'];
$qA12_2 = $_SESSION['qA12_2'];
$qA12_3 = $_SESSION['qA12_3'];
$qA12_4 = $_SESSION['qA12_4'];
$qA12_5 = $_SESSION['qA12_5'];
$qA13_1 = $_SESSION['qA13_1'];
$qA13_2 = $_SESSION['qA13_2'];
$qA13_3 = $_SESSION['qA13_3'];
$qA13_4 = $_SESSION['qA13_4'];
$qA13_5 = $_SESSION['qA13_5'];
$qA14_1 = $_SESSION['qA14_1'];
$qA14_2 = $_SESSION['qA14_2'];
$qA14_3 = $_SESSION['qA14_3'];
$qA14_4 = $_SESSION['qA14_4'];
$qA14_5 = $_SESSION['qA14_5'];
$qA15_1 = $_SESSION['qA15_1'];
$qA15_2 = $_SESSION['qA15_2'];
$qA15_3 = $_SESSION['qA15_3'];
$qA15_4 = $_SESSION['qA15_4'];
$qA15_5 = $_SESSION['qA15_5'];
$qA16_1 = $_SESSION['qA16_1'];
$qA16_2 = $_SESSION['qA16_2'];
$qA16_3 = $_SESSION['qA16_3'];
$qA16_4 = $_SESSION['qA16_4'];
$qA16_5 = $_SESSION['qA16_5'];
$qA17_1 = $_SESSION['qA17_1'];
$qA17_2 = $_SESSION['qA17_2'];
$qA17_3 = $_SESSION['qA17_3'];
$qA17_4 = $_SESSION['qA17_4'];
$qA17_5 = $_SESSION['qA17_5'];
$qA18_1 = $_SESSION['qA18_1'];
$qA18_2 = $_SESSION['qA18_2'];
$qA18_3 = $_SESSION['qA18_3'];
$qA18_4 = $_SESSION['qA18_4'];
$qA18_5 = $_SESSION['qA18_5'];
$qA19_1 = $_SESSION['qA19_1'];
$qA19_2 = $_SESSION['qA19_2'];
$qA19_3 = $_SESSION['qA19_3'];
$qA19_4 = $_SESSION['qA19_4'];
$qA19_5 = $_SESSION['qA19_5'];
$qA20_1 = $_SESSION['qA20_1'];
$qA20_2 = $_SESSION['qA20_2'];
$qA20_3 = $_SESSION['qA20_3'];
$qA20_4 = $_SESSION['qA20_4'];
$qA20_5 = $_SESSION['qA20_5'];
$qA21_1 = $_SESSION['qA21_1'];
$qA21_2 = $_SESSION['qA21_2'];
$qA21_3 = $_SESSION['qA21_3'];
$qA21_4 = $_SESSION['qA21_4'];
$qA21_5 = $_SESSION['qA21_5'];
$qA22_1 = $_SESSION['qA22_1'];
$qA22_2 = $_SESSION['qA22_2'];
$qA22_3 = $_SESSION['qA22_3'];
$qA22_4 = $_SESSION['qA22_4'];
$qA22_5 = $_SESSION['qA22_5'];
$qA23_1 = $_SESSION['qA23_1'];
$qA23_2 = $_SESSION['qA23_2'];
$qA23_3 = $_SESSION['qA23_3'];
$qA23_4 = $_SESSION['qA23_4'];
$qA23_5 = $_SESSION['qA23_5'];
$qA24_1 = $_SESSION['qA24_1'];
$qA24_2 = $_SESSION['qA24_2'];
$qA24_3 = $_SESSION['qA24_3'];
$qA24_4 = $_SESSION['qA24_4'];
$qA24_5 = $_SESSION['qA24_5'];
$qA25_1 = $_SESSION['qA25_1'];
$qA25_2 = $_SESSION['qA25_2'];
$qA25_3 = $_SESSION['qA25_3'];
$qA25_4 = $_SESSION['qA25_4'];
$qA25_5 = $_SESSION['qA25_5'];
$qA26_1 = $_SESSION['qA26_1'];
$qA26_2 = $_SESSION['qA26_2'];
$qA26_3 = $_SESSION['qA26_3'];
$qA26_4 = $_SESSION['qA26_4'];
$qA26_5 = $_SESSION['qA26_5'];
$qA27_1 = $_SESSION['qA27_1'];
$qA27_2 = $_SESSION['qA27_2'];
$qA27_3 = $_SESSION['qA27_3'];
$qA27_4 = $_SESSION['qA27_4'];
$qA27_5 = $_SESSION['qA27_5'];
$qA28_1 = $_SESSION['qA28_1'];
$qA28_2 = $_SESSION['qA28_2'];
$qA28_3 = $_SESSION['qA28_3'];
$qA28_4 = $_SESSION['qA28_4'];
$qA28_5 = $_SESSION['qA28_5'];
$qA29_1 = $_SESSION['qA29_1'];
$qA29_2 = $_SESSION['qA29_2'];
$qA29_3 = $_SESSION['qA29_3'];
$qA29_4 = $_SESSION['qA29_4'];
$qA29_5 = $_SESSION['qA29_5'];
$qA30_1 = $_POST['qA30_1'];
$qA30_2 = $_POST['qA30_2'];
$qA30_1 = (isset($_POST['qA30_1'])) ? $_POST['qA30_1'] : 0;
$qA30_2 = (isset($_POST['qA30_2'])) ? $_POST['qA30_2'] : 0;
$qA30_3 = (isset($_POST['qA30_3'])) ? $_POST['qA30_3'] : 0;
$qA30_4 = (isset($_POST['qA30_4'])) ? $_POST['qA30_4'] : 0;
$qA30_5 = (isset($_POST['qA30_5'])) ? $_POST['qA30_5'] : 0;
//所有数字之和1
$sumOne=0；
对于（$i=0；$i您确实应该坚持使用数组。如果您在$\u会话中定义一个数组并使用该数组，则会简单得多：
$_SESSION['data']['qA01_1'] = 0;
$_SESSION['data']['qA01_2'] = 1;
$_SESSION['data']['qA01_3'] = 5;
$counts = array_count_values($_SESSION['data']);
if(isset($counts[0])) { echo $counts[0]; } // sum of any 0s is 0 so here is the count
if(isset($counts[1])) { echo $counts[1]; } // sum of any 1s will be the count
if(isset($counts[5])) { echo $counts[5] * 5; }
如果我正确理解了这个问题，那么您需要将数组中的所有单个值相加
您可以使用，它返回每个值的发生次数，其中值本身是键：
foreach (array_count_values($_SESSION) as $value => $count) {
echo 'sum of ' . $value . ' values: ' . ($value * $count) . "<br>";
}
foreach（数组\计数\值（$\会话）为$value=>$count）{
回显“.$value.值之和：”。（$value*$count）。“
”；
}
不知道POST变量在哪里…你能分享你的尝试吗？为什么你一直在重命名变量？这是一种可怕的使用变量的方式。只需坚持使用会话数组或会话数组中的数组。顺便说一句，将数组转换为单个变量是一种可怕的做法，因为这会让一切变得非常困难呃更难，但如果你必须的话，只需使用提取（$\u SESSION）；
@Jay Blanchard我已经添加了我的提案，但它不起作用。不知道POST变量在哪里……嗯……我没有滚动到那么远：-（@abracadver我希望最后会有一些代码。尽管有困难；-）
foreach (array_count_values($_SESSION) as $value => $count) {
echo 'sum of ' . $value . ' values: ' . ($value * $count) . "<br>";
}