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I have a web page with several JavaScript functions. One of the things I need to do is to read a string from a server side file (say tmp.txt) into a Javascript variable and also to write the value of a Javascript variable to the file, overwriting previous contents. That is all I want to do.
How can I do that? Thanks
Joe
Joe, at the risk of sounding patronizing, JavaScript cannot read or write information to or from files (on the server OR on a client’s computer.) You’ll need server side scripting for that: PHP, ASP.NET, Classic ASP and many others. I can give you code for PHP, but I do not know any other server languages.
PHP Code:<?php
$filename = "tmp.txt";
//reading from file
$fp = fopen($filename, "r") or die("Couldn't open $filename Ln 5.");
while(!feof($fp)) {
$line = fgets($fp, 1024);
echo $line;
}
fclose($fp);
//writing to file
$fp = fopen($filename, "w") or die("Couldn't open $filename Ln 13.");
fwrite($fp, "Hello World");
fclose($fp);
?>
Steve,
Thanks for the explanation and script. I thought this was the case but wasn't sure. The script is a big help since I am just starting to learn PHP. Thanks again.
Joe
why not sure? i think it 's exact !Quote:
Originally Posted by jdvorak
