本文实例讲述了php使用fputcsv()函数csv文件读写数据的方法。分享给大家供大家参考。具体分析如下：
fputcsv() 函数用于将数据格式为csv格式,以便写入文件或者数据库.
1.将字符串写入csv文件中,代码如下:复制代码 代码如下:$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()函数返回所写入行的字符的个数或者false,当写入失败时返回false.
2.将格式化的csv字符串保存到字符串中,代码如下:复制代码 代码如下:$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."); $result = ob_get_contents(); ob_end_clean();以用fgetcsv(file,length,separator,enclosure)函数读取csv文件.
fgetcsv的参数说明如下:
file：需要读取的csv文件，此参数是必需的。
length：表示大于csv文件中最长的行的长度的值。php5之前是必需参数。在php5中是可选参数，如果不设置此参数或者将其设为0，php将会读取.
一整行的数据。如果行的长度超过8192个字节时，应该将length值设定一个数，而不是让php自动去计算行的长度。
separator：指定数据的分隔符，默认是逗号，如果指定为“；”，那么fgetcsv函数将按照“；”来解析行数据。
fgetcsv的返回值:
根据file的一行数据,返回一个数组,如果读取文件出错,则返回false,到达文件尾部时,也返回false.
下面是一个读取test.csv文件的例子:复制代码 代码如下:$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!");
希望本文所述对大家的php程序设计有所帮助。
