使用php过滤CSV文件 - Filter a CSV file using php

我有一个csv文件，每天通过ftp发送两次。我正试图编写一个php文件来打开这个文件，按类别列对其进行筛选，删除没有特定术语的行，然后保存文件。

我尝试过互联网上发现的许多代码片段的变体，但我一辈子都想不出如何让它发挥作用。

我尝试使用这个问题中发现的代码的变体，但无法使其在我的场景中工作

使用php 通过单词或文本过滤csv文件

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";
    }
}
?>

到目前为止，这是我用来过滤类别以仅显示卡西欧类别中的产品的代码。然而，当我运行脚本时，即使卡西欧类别下有许多产品，也不会显示结果。

我认为你搜索错了列。casio位于制造商列内。你必须在那里搜索。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:的样本输出

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);

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'filename.txt