Sets the value of the given configuration option. The configuration option
will keep this new value during the script's execution, and will be restored
at the script's ending.
Parameters
varname
Not all the available options can be changed using
ini_set. There is a list of all available options
in the appendix.
newvalue
The new value for the option.
Return Values
Returns the old value on success, FALSE on failure.
Examples
Example #1 Setting an ini option
<?php echo ini_get('display_errors');
if (!ini_get('display_errors')) { ini_set('display_errors', '1'); }