The following example shows you how to register Stream_Var as a wrapper for the stream functions.
Registering Stream_Var
<?php
require_once "Stream/Var.php";
stream_wrapper_register( "var", "Stream_Var" );
?>
The following example show you how to access scalar variables with fopen(), fread(), frwite() and fclose().
Accessing scalar variables
<?php
require_once "Stream/Var.php";
stream_wrapper_register( "var", "Stream_Var" );
$foo = "I really like tomatoes.";
echo "Content of foo: $foo<br />";
$fp = fopen('var://GLOBALS/foo','r+');
$data = fread($fp, 9);
echo "Read from stream: $data<br />";
fwrite($fp,"hate");
fclose($fp);
echo "Content of foo: $foo<br />";
?>
The following example shows how to use opendir() to access an array.
Accessing an array
<?php
require_once "Stream/Var.php";
stream_wrapper_register( "var", "Stream_Var" );
$dirname = 'var://_SERVER';
$dir = opendir($dirname);
echo "<strong>opening directory '$dirname'</strong><br><br>";
while ($entry = readdir($dir)) {
echo "opening file $dirname/$entry<br />";
if (!$fp = @fopen($dirname."/".$entry,"r")) {
echo "seems to be a directory<br /><br />";
continue;
}
echo "reading from $entry<br />";
while (!feof($fp)) {
echo fread($fp, 16);
}
fclose($fp);
echo "<br /><br />";
}
closedir($dir);
?>
If you want to take a look at some more examples, just install the package and they will be installed in the docs directory.