Question

我使用PHP 5.3+并尝试打开CSV文件，将信息存储为关联数组，然后能够过滤数组。

到目前为止，我已设法使用（随意改进）打开CSV文件：

$all_rows = array();

$header = null;
if (($handle = fopen("files/my_data.csv", "r")) !== FALSE) {
  while (($row = fgetcsv($handle, 1000, ",")) !== FALSE) {
    if ($header === null) {
       $header = $row;
       continue;
    }
  $all_rows[] = array_combine($header, $row);
  }

fclose($handle);
}

print_r($all_rows);

打印数据确定，但我正在努力解决如何做以下事情......

对于每一行，其中第1列大于或等于1.0且小于3.9计数，则输出总计。在以下示例中，3行中的2个数据符合标准。

仅限示例数据：

/*
$row_1 = [
    ['col_1' => '1.1', 'col_2' => 'Product Name'],
];

$row_2 = [
    ['col_1' => '1.2', 'col_2' => 'Product Name'],
];

$row_3 = [
    ['col_1' => '4.0', 'col_2' => 'Product Name'],
];

*/

$ row_1,2,3和$ col_1,2,3等将是关联数组中列出的名称。

任何帮助将不胜感激，如果您需要任何进一步的信息，请询问

由于

詹姆斯

=============================

更新：这是foreach声明

$counter_total = 0;


// Count Sidebar Products Positions
foreach ($all_rows as $key => $value) {

 // I was missing the $key value in $all_rows[{here}]['ProductPosition']
 #echo $key; // ID Number of Row

 $counter_total++;

  if (($all_rows[$key]['ProductPosition'] >= 1) && ($all_rows[$key]['ProductPosition'] <= 9.9)){
    $sidebar_one++;   
   }
  elseif (($all_rows[$key]['ProductPosition'] >= 10) && ($all_rows[$key]['ProductPosition'] <= 19.9)){
    $sidebar_two++;  
  }
  elseif (($all_rows[$key]['ProductPosition'] >= 20) && ($all_rows[$key]['ProductPosition'] <= 29.9)){
    $sidebar_three++;  
  }

}


// Display Output - Testing Only 
echo '==================<br>';
echo 'Counter Total: '. $counter_total . '<br>';
echo 'Sidebar 1: '. $sidebar_one . '<br>';
echo 'Sidebar Page 2: '. $sidebar_page_two . '<br>';
echo 'Sidebar Page 3: '. $sidebar_page_three . '<br>';



// Show Sidebar 1 Products
foreach ($all_rows as $key => $value) {

 if (($all_rows[$key]['ProductPosition'] >= 1) && ($all_rows[$key]['ProductPosition'] <= 9.9)){
    #$sidebar_one++;     

    echo $key . ': ' . $all_rows[$key]['Queries']."<br />"; 
  }

}

但是，显示侧边栏1产品显示所有产品并忽略计数器，即使测试显示中的计数器是正确的？折流板!!

Answer 1

只需使用一个简单的foreach循环来测试列并将其添加到总计中。

<?php

$all_rows = [
    ['ProductPosition' => '1.1', 'Queries' => 'Product 1'],
    ['ProductPosition' => '1.2', 'Queries' => 'Product 2'],
    ['ProductPosition' => '4.0', 'Queries' => 'Product 3'],
];

$counter_total = 0;
$sidebar_one = $sidebar_two = $sidebar_three = 0;

// Count Sidebar Products Positions
foreach ($all_rows as $value) {

 $counter_total++;

  if ($value['ProductPosition'] >= 1 && $value['ProductPosition'] <= 3.9){
    $sidebar_one++;   
   }
  elseif ($value['ProductPosition'] <= 19.9){
    $sidebar_two++;  
  }
  elseif ($value['ProductPosition'] <= 29.9){
    $sidebar_three++;  
  }

}


// Display Output - Testing Only 
echo '==================<br>' . "\n";
echo 'Counter Total: '. $counter_total . '<br>'. "\n";
echo 'Sidebar 1: '. $sidebar_one . '<br>'. "\n";
echo 'Sidebar Page 2: '. $sidebar_two . '<br>'. "\n";
echo 'Sidebar Page 3: '. $sidebar_three . '<br>'. "\n";

foreach ($all_rows as $key => $value) {

 if ($value['ProductPosition'] >= 1 && $value['ProductPosition'] <= 3.9){
    echo $key . ': ' . $value['Queries']."<br />\n"; 
  }

}

DEMO

CSV到PHP关联数组和过滤数据

1 个答案: