04-24-2012
No need to declare variables in a shell script. The variables come to existence automatically when they are used. All the variables that do not exist are assumed to be null. So if you wish to give all the variables you wannt to use in your script to some default value, initialize them using
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LEARN ABOUT PHP
import_request_variables
IMPORT_REQUEST_VARIABLES(3) 1 IMPORT_REQUEST_VARIABLES(3)
import_request_variables - Import GET/POST/Cookie variables into the global scope
SYNOPSIS
bool import_request_variables (string $types, [string $prefix])
DESCRIPTION
Imports GET/POST/Cookie variables into the global scope. It is useful if you disabled register_globals, but would like to see some vari-
ables in the global scope.
If you're interested in importing other variables into the global scope, such as $_SERVER, consider using extract(3).
Warning
This function has been DEPRECATED as of PHP 5.3.0 and REMOVED as of PHP 5.4.0.
PARAMETERS
o $types
- Using the $types parameter, you can specify which request variables to import. You can use 'G', 'P' and 'C' characters respec-
tively for GET, POST and Cookie. These characters are not case sensitive, so you can also use any combination of 'g', 'p' and 'c'.
POST includes the POST uploaded file information.
Note
Note that the order of the letters matters, as when using " GP", the POST variables will overwrite GET variables with the
same name. Any other letters than GPC are discarded.
o $prefix
- Variable name prefix, prepended before all variable's name imported into the global scope. So if you have a GET value named "
userid", and provide a prefix " pref_", then you'll get a global variable named $pref_userid.
Note
Although the $prefix parameter is optional, you will get an E_NOTICE level error if you specify no prefix, or specify an
empty string as a prefix. This is a possible security hazard. Notice level errors are not displayed using the default error
reporting level.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
import_request_variables(3) example
<?php
// This will import GET and POST vars
// with an "rvar_" prefix
import_request_variables("gp", "rvar_");
echo $rvar_foo;
?>
SEE ALSO
$_REQUEST, register_globals, Predefined Variables, extract(3).
PHP Documentation Group IMPORT_REQUEST_VARIABLES(3)