PHP file Operation method Summary, _php tutorial

PHP file Operation method Summary,

Write the data in the database file:

<?php/** * Created by Phpstorm. * User:administrator * DATE:2015/6/29 * time:17:05 * */Header ("content-type:text/html; Charset=utf-8 "); Write Data $f = fopen (' Data ', ' w ');//Open the file fwrite ($f, ' Hello PHP ');//write to Fclose ($f);//Close file echo ' OK '; Windows environment temporarily does not consider permissions issues

After successful writing, you can see "OK" on the page.

Next, read the data in the file.

<?php/** * Created by Phpstorm. * User:administrator * DATE:2015/6/29 * time:17:05 */header ("content-type:text/html; Charset=utf-8 ");//read data$f = fopen (' Data ', ' R '); $content = Fgets ($f); Echo $content; fclose ($f);

How do I read more than one row of data?

Method One while:

<?php/** * Created by Phpstorm. * User:administrator * DATE:2015/6/29 * time:17:05 */header ("content-type:text/html; Charset=utf-8 "); $f = fopen (' Data ', ' r ');//Read multi-line data Whilewhile (!feof ($f)) {//feof () function to detect whether the end of the file has been reached  $content = fgets ($f );  echo $content;} Fclose ($f);

Method two file_get_contents ():

echo file_get_contents (' data ');

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