使用 php 过滤 CSV 文件

Question

我每天两次通过 ftp 传送 csv 文件。我正在尝试编写一个 php 文件来打开此文件，按类别列对其进行过滤，删除其中没有特定术语/术语的行，然后保存文件。

我已经尝试了许多在互联网上找到的 sn-ps 代码变体，但我终其一生都无法弄清楚如何让它发挥作用。

我尝试使用在这个问题中找到的代码变体，但无法使其在我的场景中工作

Filter a csv file by a word or text using php

如果它有助于我尝试编辑的 csv 文件位于此处： http://accurateav.co.uk/sahara/saharafeed.csv

<?php
$file  = fopen('saharafeed.csv', 'r');

// You can use an array to store your search words, makes things more flexible.
// Supports any number of search words.
$words = array('casio');    
// Make the search words safe to use in regex (escapes special characters)
$words = array_map('preg_quote', $words);
$regex = '/'.implode('|', $words).'/i';

while (($line = fgetcsv($file)) !== FALSE) {  
    list($ExportDate, $ItemCode, $Manufacturer, $Model, $ProductName, $DealerPrice, $Stock, $RRP, $Category, $ShortDesc, $LongDesc, $Weightkg, $EAN, $NonStock, $LargePictureURL, $SpecSheet, $HiResPhoto1, $HiResPhoto2) = $line;

    if(preg_match($regex, $Category)) {
        echo "$ExportDate, $ItemCode, $Manufacturer, $Model, $ProductName, $DealerPrice, $Stock, $RRP, $Category, $ShortDesc, $LongDesc, $Weightkg, $EAN, $NonStock, $LargePictureURL, $SpecSheet, $HiResPhoto1, $HiResPhoto2<br />\n";
    }
}

?>

这是迄今为止我用来过滤类别以仅显示卡西欧类别中的产品的代码，但是当我运行脚本时，即使卡西欧类别下有许多产品，也没有显示任何结果。

Answer 1

我认为您搜索错误的列。 casio 在制造商列内。您必须改为在那里搜索。考虑这个例子：

$i = 0;
$manufacturer_key = null;
$needles = array('casio', 'nec', 'hitachi');
$results = array();
$columns = array();
if(($handle = fopen('saharafeed.csv', 'r')) !== false) {
    while(($data = fgetcsv($handle, 4096, ',')) !== false) {
        if($i == 0)  {
            // sets the key where column to search
            $columns = $data;
            $i++; $manufacturer_key = array_search('Manufacturer', $data);
        } else {
            foreach($needles as $needle) {
                if(stripos($data[$manufacturer_key], $needle) !== false) {
                    $results[] = $data;
                } 
            }   
        }
    }
    fclose($handle);
}

array_unshift($results, $columns);

echo '<pre>';
print_r($results);
echo '</pre>';

casio 的示例输出：

Array
(
    [0] => Array
        (
            [0] => ExportDate
            [1] => ItemCode
            [2] => Manufacturer
            [3] => Model
            [4] => ProductName
            [5] => DealerPrice
            [6] => Stock
            [7] => RRP
            [8] => Category
            [9] => ShortDesc
            [10] => LongDesc
            [11] => Weightkg
            [12] => EAN
            [13] => NonStock
            [14] => LargePictureURL
            [15] => SpecSheet
            [16] => HiResPhoto1
            [17] => HiResPhoto2
        )

    [1] => Array
        (
            [0] => 11/06/2014
            [1] => 1610044
            [2] => NEC
            [3] => 60003221
            [4] => NEC  NP14ZL
            [5] => 999
            [6] => 0
            [7] => 1348.65
            [8] => Projectors Accessories
            [9] => 2.97-4.79:1 Zoom Lens
            [10] => Replacement 2.97–4.79:1 Zoom Lens compatible with the following products:

... and many more

将结果放回csv格式：

$fp = fopen('file.csv', 'w');

foreach ($results as $row) {
    fputcsv($fp, $row);
}

fclose($fp);

Answer 2

Remove the line matching by a regular expression (by eliminating one containing digital   characters, at least 1 digit, located at the end of the line):

sed '/[0-9/][0-9]*$/d' 文件名.txt