Question

我正在尝试更新像这样被阻止的文件

0,0,5,2,0
0,0,7,0,0
0,2,2,3,0
1,2,2,2,0
0,0,5,2,0
0,1,3,2,1
0,0,3,2,2
0,0,6,1,0

每行都是一个问题，行中的每个数字都是受访者的数量。这里的代码试图逐行，并检查用户从每个问题的5个单选按钮中选择的答案。所以格式如下：

Question 1: Blah              |  1  |  2  |  3  |  4  |  5  | Check one

//Grab user input from survey
$q[1] = $_POST['radio1'];
$q[2] = $_POST['radio2'];
$q[3] = $_POST['radio3'];
$q[4] = $_POST['radio4'];
$q[5] = $_POST['radio5'];
$q[6] = $_POST['radio6'];
$q[7] = $_POST['radio7'];
$q[8] = $_POST['radio8'];

//Use file handle and write to file
$FileName = "results.csv";
$FileHandle = fopen($FileName, 'a+') or die("can't open file!!");


$i = 0;

while($row = fgetcsv($FileHandle)){
    $j = 1;
    for($i = 0; $i<8; $i++){
        if($q[$j] == 1){
            $row[0]++;
        }
        else if($q[$j] == 2){
            $row[1]++;
        }
        else if($q[$j] == 3){
            $row[2]++;
        }
        else if($q[$j] == 4){
            $row[3]++;
        }
        else if($q[$j] == 5){
            $row[4]++;
        }
        $j++;
    }
}

Answer 1

\n之类的转义序列不会在单引号内插入。

你必须使用双引号：

$result = $q1.','.$q2.','.$q3.','.$q4.','.$q5.','.$q6.','.$q7.','.$q8."\n";

此外，您应该查看fputcsv()函数。

Answer 2

检查fputcsv（）：http://php.net/manual/en/function.fputcsv.php而不是fwrite，这将为您提供比字符串连接更多的灵活性。

e.g

$q[1] = $_POST['radio1'];
$q[2] = $_POST['radio2'];
$q[3] = $_POST['radio3'];
$q[4] = $_POST['radio4'];
$q[5] = $_POST['radio5'];
$q[6] = $_POST['radio6'];
$q[7] = $_POST['radio7'];
$q[8] = $_POST['radio8'];

fputcsv($FileHandlem $q);

Answer 3

这是我对我的问题的解决方案，它可能不是优雅但它的工作原理。脚本必须提取值并在最后更新它们。

<?php

//Grab user input from survey
$q[1] = $_POST['radio1'];
$q[2] = $_POST['radio2'];
$q[3] = $_POST['radio3'];
$q[4] = $_POST['radio4'];
$q[5] = $_POST['radio5'];
$q[6] = $_POST['radio6'];
$q[7] = $_POST['radio7'];
$q[8] = $_POST['radio8'];

//Use file handle and write to file
$FileName = "results.csv";
$FileHandle = fopen($FileName, 'r') or die("can't open file!!");

$result = array();

$i = 0;
$j = 1;
while(($row = fgetcsv($FileHandle, 1024, ",")) !== FALSE){

    if($q[$j] == 1){
        $temp[0] = $row[0] + 1;
        $temp[1] = $row[1];
        $temp[2] = $row[2];
        $temp[3] = $row[3];
        $temp[4] = $row[4]; 
    }
    else if($q[$j] == 2){
        $temp[0] = $row[0];
        $temp[1] = $row[1] + 1;
        $temp[2] = $row[2];
        $temp[3] = $row[3];
        $temp[4] = $row[4];
    }
    else if($q[$j] == 3){
        $temp[0] = $row[0];
        $temp[1] = $row[1];
        $temp[2] = $row[2] + 1;
        $temp[3] = $row[3];
        $temp[4] = $row[4];
    }
    else if($q[$j] == 4){
        $temp[0] = $row[0];
        $temp[1] = $row[1];
        $temp[2] = $row[2];
        $temp[3] = $row[3] + 1;
        $temp[4] = $row[4];
    }
    else if($q[$j] == 5){
        $temp[0] = $row[0];
        $temp[1] = $row[1];
        $temp[2] = $row[2];
        $temp[3] = $row[3];
        $temp[4] = $row[4] + 1;
    }
    $result[] = $temp;
    $j++;
}
fclose($FileHandle);

$FileHandle = fopen($FileName, 'w') or die("can't open file!!");


foreach($result as $line){
    fputcsv($FileHandle, $line);
}

fclose($FileHandle);

?>

更新CSV文件PHP中的总计

3 个答案: