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Full Discussion: Evaluating a variable
Top Forums Shell Programming and Scripting Evaluating a variable Post 302459026 by methyl on Sunday 3rd of October 2010 10:27:37 AM
Old 10-03-2010
If you haven't got bash.

Code:
NUM1ref=16
NUM2ref=32
echo "=============="
for VAR in NUM1 NUM2
do
  eval echo \$${VAR}ref
  echo "=============="
done

==============
16
==============
32
==============

This User Gave Thanks to methyl For This Post:
 

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GUPNP_SERVICE_PROXY_ADD_NOTIFY(3)					 1					 GUPNP_SERVICE_PROXY_ADD_NOTIFY(3)

gupnp_service_proxy_add_notify - Sets up callback for variable change notification

SYNOPSIS
bool gupnp_service_proxy_add_notify (resource $proxy, string $value, int $type, mixed $callback, [mixed $arg]) DESCRIPTION
Sets up callback to be called whenever a change notification for variable is recieved. PARAMETERS
o $proxy - A service proxy identifier. o $value - The variable to add notification for. o $type - The type of the variable. Type can be one of the following values: o GUPNP_TYPE_BOOLEAN - Type of the variable is boolean. o GUPNP_TYPE_INT - Type of the variable is integer. o GUPNP_TYPE_LONG - Type of the variable is long. o GUPNP_TYPE_DOUBLE - Type of the variable is double. o GUPNP_TYPE_FLOAT - Type of the variable is float. o GUPNP_TYPE_STRING - Type of the variable is string. o $callback - The callback to call when variable changes. Typically, callback function takes on three parameters. The $variable parameter being the first, $value parameter being the second, and the $arg is third. o $arg - User data for $callback. RETURN VALUES
Returns TRUE on success or FALSE on failure. SEE ALSO
gupnp_service_proxy_remove_notify(3). PHP Documentation Group GUPNP_SERVICE_PROXY_ADD_NOTIFY(3)
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