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Odd. &nbsp;Looks like PHP decided that testdata.txt was a path using http, rather than using your local file system. &nbsp;Try prepending the file:// wrapper:<br />
$filename = &quot;file://testdata.txt&quot;;<br />

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Odd.  Looks like PHP decided that testdata.txt was a path using http, rather than using your local file system.  Try prepending the file:// wrapper:
$filename = "file://testdata.txt";


<div>
I tried:<br />
<br />
1. $filename=$_SERVER['DOCUME<wbr />NT_ROOT'] . '/latlon_web/data/testdata<wbr />.txt';<br />
<br />
2. $filename= &quot;file://testdata.txt&quot;;<br />
<br />
no luck.
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I tried:

1. $filename=$_SERVER['DOCUMENT_ROOT'] . '/latlon_web/data/testdata.txt';

2. $filename= "file://testdata.txt";

no luck.

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<div class="content wysiwyg-content">
I just want to do a simple write i/o:<br />
<br />
$filename=&quot;testdata.txt&quot;;<br />
$fp =fopen($filename, &quot;w&quot;) or die(&quot;Error opening file&quot;);<br />
fwrite($fp,'this is a test');<br />
fclose($fp);<br />
<br />
I get this error PHP4:<br />
<br />
Warning: fopen(testdata.txt): failed to open stream: HTTP wrapper does not support writeable connections. <br />
<br />
thanks in advance
</div>
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I just want to do a simple write i/o:

$filename="testdata.txt";
$fp =fopen($filename, "w") or die("Error opening file");
fwrite($fp,'this is a test');
fclose($fp);

I get this error PHP4:

Warning: fopen(testdata.txt): failed to open stream: HTTP wrapper does not support writeable connections. 

thanks in advance

Why can't I FOPEN a file?

PHP is a widely-used server-side scripting language especially suited for web development, powering tens of millions of sites from Facebook to personal WordPress blogs. PHP is often paired with the MySQL relational database, but includes support for most other mainstream databases. By utilizing different Server APIs, PHP can work on many different web servers as a server-side scripting language.