php兌現(xiàn)讀寫csv文件的header()函數(shù)使用
Jun 13, 2016 pm 01:06 PM
php實現(xiàn)讀寫csv文件的header()函數(shù)使用
php實現(xiàn)讀寫csv文件的header()函數(shù)使用
定義和用法
header() 函數(shù)向客戶端發(fā)送原始的 HTTP 報頭。
認(rèn)識到一點很重要,即必須在任何實際的輸出被發(fā)送之前調(diào)用 header() 函數(shù)(在 PHP 4 以及更高的版本中,您可以使用輸出緩存來解決此問題):
// 結(jié)果出錯
// 在調(diào)用 header() 之前已存在輸出
header('Location: http://www.3ppt.com/');
?>語法
header(string,replace,http_response_code)參數(shù) 描述
string 必需。規(guī)定要發(fā)送的報頭字符串。
replace 可選。指示該報頭是否替換之前的報頭,或添加第二個報頭。
默認(rèn)是 true(替換)。false(允許相同類型的多個報頭)。
http_response_code 可選。把 HTTP 響應(yīng)代碼強制為指定的值。(PHP 4 以及更高版本可用)
1.定義header()頭部輸出格式
header("Content-type:application/vnd.ms-excel");? //定義輸出的文件類型
header(“content-Disposition:filename=downloaded.pdf”);? //定義輸出的文件名,也就是設(shè)置一個下載類型,下載的時候?qū)ξ募男旅?br>
??? ??? header("Content-type:application/vnd.ms-excel");
??? header("content-Disposition:filename=downloaded.pdf ");
??? echo"1t 2t 3n"; //其中 t 是空白 ,n是回車 (編碼規(guī)范 不能直接輸出)
??? echo"1t 2t 3n";
??? echo"1t 2t 3n";
??? ?>
這時候就可以打開這個php文件,就會提示下載。
也可以以table表格的方式輸出;
??? ????? header("Content-type:application/vnd.ms-excel ");
???? header("content-Disposition:filename=downloaded.pdf");
??? ?>
?????
t00 | t01 | t02 |
t10 | t11 | t12 |
t20 | t21 | t22 |
????
CSV的寫入操作:
fputcsv()的使用可參考.
????? $fp = fopen('f:/file.csv', 'w');
????????? fputcsv($fp,array('aaa','bbb','cccc'));
????????? fputcsv($fp,array('mmm','yyy','haha'));?? //fputcsv()可以用數(shù)組循環(huán)的方式進(jìn)行實現(xiàn)
?????????? fclose($fp);

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