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Extended interface

The extended interface provides a small suite of functions that allow the user to define an arbitrary number of named counters with unique settings. The basic interface can be used in parallel with the extended interface.

Example #1 "counter"'s extended interface

<?php
function print_counter_info($counter)
{
    if (
is_resource($counter)) {
        
printf("Counter's name is '%s' and is%s persistent. Its current value is %d.\n",
            
counter_get_meta($counterCOUNTER_META_NAME),
            
counter_get_meta($counterCOUNTER_META_IS_PERSISTENT) ? '' ' not',
            
counter_get_value($counter));
    } else {
      print 
"Not a valid counter!\n";
    }
}

if ((
$counter_one counter_get_named("one")) === NULL) {
    
$counter_one counter_create("one"0COUNTER_FLAG_PERSIST);
}
counter_bump_value($counter_one2);
$counter_two counter_create("two"5);
$counter_three counter_get_named("three");
$counter_four counter_create("four"2COUNTER_FLAG_PERSIST COUNTER_FLAG_SAVE COUNTER_FLAG_NO_OVERWRITE);
counter_bump_value($counter_four1);

print_counter_info($counter_one);
print_counter_info($counter_two);
print_counter_info($counter_three);
print_counter_info($counter_four);
?>

When run once, the above example outputs:

Counter's name is 'one' and is persistent. Its current value is 2.
Counter's name is 'two' and is not persistent. Its current value is 5.
Not a valid counter!
Counter's name is 'four' and is persistent. Its current value is 3.

If run a second time within the same instance of PHP, it outputs:

Counter's name is 'one' and is persistent. Its current value is 4.
Counter's name is 'two' and is not persistent. Its current value is 5.
Not a valid counter!
Counter's name is 'four' and is persistent. Its current value is 4.

If then run a third time in a different instance of PHP, it outputs:

Counter's name is 'one' and is persistent. Its current value is 2.
Counter's name is 'two' and is not persistent. Its current value is 5.
Not a valid counter!
Counter's name is 'four' and is persistent. Its current value is 5.
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