使用php過濾CSV文件

Question

我每天兩次通過ftp發送一個csv文件。 我正在嘗試編寫一個php文件來打開此文件，按類別列對其進行過濾，刪除其中沒有特定術語的行，然后保存文件。

我已經嘗試了許多在Internet上找到的代碼片段的變體，但是我一生都無法弄清楚如何使其工作。

我嘗試使用此問題中找到的代碼的變體，但無法使其在我的情況下起作用

使用php通過單詞或文本過濾csv文件

如果有幫助CSV文件，我試圖編輯就設在這里： 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";
    }
}

?>

到目前為止，這是我用來過濾類別以僅顯示Casio類別中的產品的代碼，但是，即使在casio類別下有許多產品，當我運行腳本時也不會顯示任何結果。

Answer 1

我認為您在搜索錯誤的列。 casio位於制造商列中。 您必須在那搜索。 考慮以下示例：

$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樣本輸出：

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

將結果放回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'filename.txt