php使用fputcsv()函數(shù)csv文件讀寫數(shù)據(jù)的方法
本文實(shí)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:
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(gè)數(shù)或者false,當(dāng)寫入失敗時(shí)返回false.
2.將格式化的csv字符串保存到字符串中,代碼如下:
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(huì)讀取.
一整行的數(shù)據(jù)。如果行的長度超過8192個(gè)字節(jié)時(shí),應(yīng)該將length值設(shè)定一個(gè)數(shù),而不是讓php自動(dòng)去計(jì)算行的長度。
separator:指定數(shù)據(jù)的分隔符,默認(rèn)是逗號(hào),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(gè)數(shù)組,如果讀取文件出錯(cuò),則返回false,到達(dá)文件尾部時(shí),也返回false.
下面是一個(gè)讀取test.csv文件的例子:
$color="#ff0000";
print '<table border=0>';
while($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!");
希望本文所述對(duì)大家的php程序設(shè)計(jì)有所幫助。
相關(guān)文章
php中使用addslashes函數(shù)報(bào)錯(cuò)問題的解決方法
php中使用addslashes函數(shù)報(bào)錯(cuò)問題的解決方法,需要的朋友可以參考下2013-02-02無法在發(fā)生錯(cuò)誤時(shí)創(chuàng)建會(huì)話,請(qǐng)檢查 PHP 或網(wǎng)站服務(wù)器日志,并正確配置 PHP 安裝最快的解決辦法
無法在發(fā)生錯(cuò)誤時(shí)創(chuàng)建會(huì)話,請(qǐng)檢查 PHP 或網(wǎng)站服務(wù)器日志,并正確配置 PHP 安裝最快的解決辦法2010-08-08php 調(diào)用ffmpeg獲取視頻信息的簡單實(shí)現(xiàn)
下面小編就為大家?guī)硪黄猵hp 調(diào)用ffmpeg獲取視頻信息的簡單實(shí)現(xiàn)。小編覺得挺不錯(cuò)的,現(xiàn)在就分享給大家,也給大家做個(gè)參考。一起跟隨小編過來看看吧2017-04-04PHP學(xué)習(xí)筆記 用戶注冊(cè)模塊用戶類以及驗(yàn)證碼類
最近正在學(xué)習(xí)《PHP&MySQL范例精解》,剛剛看到第一張,關(guān)于用戶注冊(cè)模塊的設(shè)計(jì),這本書提供了很多可重用類,便于用于其它項(xiàng)目中。2011-09-09php函數(shù)實(shí)現(xiàn)判斷是否移動(dòng)端訪問
本文給大家分享的是一則php判斷是否移動(dòng)端訪問的函數(shù),是之前收藏的,這里發(fā)出來,推薦給小伙伴們。2015-03-03