php使用fputcsv()函數(shù)csv文件讀寫數(shù)據(jù)的方法

更新時間：2015年01月06日 14:23:23 投稿：shichen2014

這篇文章主要介紹了php使用fputcsv()函數(shù)csv文件讀寫數(shù)據(jù)的方法,分析了fputcsv()函數(shù)針對csv文件的讀寫操作技巧,具有一定參考借鑒價值,需要的朋友可以參考下

本文實例講述了php使用fputcsv()函數(shù)csv文件讀寫數(shù)據(jù)的方法。分享給大家供大家參考。具體分析如下：

fputcsv() 函數(shù)用于將數(shù)據(jù)格式為csv格式,以便寫入文件或者數(shù)據(jù)庫.

1.將字符串寫入csv文件中,代碼如下:

$test_array = array( 

    array("111","sdfsd","sdds","43344","rrrr"), 

    array("sssssssss","gdfgfd","232323","wwewe","dsfds"), 

    array("fgfg","e4343","dsfds","w2332","xcvxc"), 

    array("11212","2323","344343","344343","rerreer"), 

    array("fds","43344444","33333333","ttttttt","gggggggggggg"), 

    array("kdfs","dsfdsfds","wewewe","sdsdddddddd","wwwwwwwwwww")

); 

$file = fopen("test.csv","w") or die("Can't Open test.csv"); 

foreach($test_array as $line_array) 

{ 

    $isSuccess = fputcsv($file,$line_array); 

    print $isSuccess."<br>"; 

　if($isSuccess===false) 

    { 

        die("Can't write csv line".$line_array); 

    } 

} 

fclose($file) or die("Can't close file test.csv.");

fputcsv()函數(shù)返回所寫入行的字符的個數(shù)或者false,當(dāng)寫入失敗時返回false.

2.將格式化的csv字符串保存到字符串中,代碼如下:

復(fù)制代碼代碼如下:

$test_array = array(
        array("111","sdfsd","sdds","43344","rrrr"),
        array("sssssssss","gdfgfd","232323","wwewe","dsfds"),
        array("fgfg","e4343","dsfds","w2332","xcvxc"),
        array("11212","2323","344343","344343","rerreer"),
        array("fds","43344444","33333333","ttttttt","gggggggggggg"),
        array("kdfs","dsfdsfds","wewewe","sdsdddddddd","wwwwwwwwwww")
);
ob_start();
$file = fopen("php://output","w") or die("Can't Open php://output");
foreach($test_array as $line_array)
{
        $isSuccess = fputcsv($file,$line_array);
        if($isSuccess===false)
        {
            die("Can't write csv line".$line_array);
        }
}

fclose($file) or die("Can't close file test.csv.");
$result = ob_get_contents();
ob_end_clean();

以用fgetcsv(file,length,separator,enclosure)函數(shù)讀取csv文件.

fgetcsv的參數(shù)說明如下:

file：需要讀取的csv文件，此參數(shù)是必需的。

length：表示大于csv文件中最長的行的長度的值。php5之前是必需參數(shù)。在php5中是可選參數(shù)，如果不設(shè)置此參數(shù)或者將其設(shè)為0，php將會讀取.

一整行的數(shù)據(jù)。如果行的長度超過8192個字節(jié)時，應(yīng)該將length值設(shè)定一個數(shù)，而不是讓php自動去計算行的長度。

separator：指定數(shù)據(jù)的分隔符，默認(rèn)是逗號，如果指定為“；”，那么fgetcsv函數(shù)將按照“；”來解析行數(shù)據(jù)。

fgetcsv的返回值:

根據(jù)file的一行數(shù)據(jù),返回一個數(shù)組,如果讀取文件出錯,則返回false,到達(dá)文件尾部時,也返回false.

下面是一個讀取test.csv文件的例子:

復(fù)制代碼代碼如下:

$file = fopen('test.csv','r') or die("Can't open file test.csv"); 

$color="#ff0000"; 

print '<table border=0>'; 

while($csv_line=fgetcsv($file)) 

{ 

        print "<tr>"; 

        $len = count($csv_line); 

        for($i=0;$i<$len;$i++) 

        { 

            if($i%2==0)$color="#cccccc"; 

            else $color="#999999"; 

            print '<td bgcolor='.$color.'>'.htmlentities($csv_line[$i]).'</td>'; 

        } 

        print "</tr>"; 

} 

print '</table>'; 

fclose($file) or die("Can't close file test.csv!");