PHP automatically creates global variables containing data from a variety of
external sources. This feature can be turned off by turning off the
register_globals setting. With register_globals
you can access this data via a number of special associative arrays listed below.
]]>]]>]]>
Special variables set by your web server. You can get a list of what
is set by running this code on your server:
$val) {
echo '$_SERVER['.$key."] = $val \n";
}
?>]]>$val) {
$val = strip_tags($val);
if(strlen($val)>40) $val=substr($val,0,40).'...';
echo '$_SERVER['.$key."] = $val \n";
}
error_reporting($old);
?>]]>
Environment variables that were present at server startup time. Note that environment
variables created by PHP using putenv() will not be shown here,
nor do they persist beyond the request.
$val) {
$val = strip_tags($val);
if(strlen($val)>40) $val=substr($val,0,40).'...';
echo '$_ENV['.$key."] = $val \n";
}
?>]]>
Used for the RFC1867 file upload feature.
When the mime type associated with the POST data is unrecognized or not set, the
raw post data is available in this variable.