apc_cache_infoapc_cas
(PECL apc >= 3.1.1)
apc_cas — apc_cas
Description
int apc_cas
( string $key
, int $old
, int $new
)
apc_cas
Warning
This function is currently not documented; only its argument list is available.
Parameters
- key
-
- old
-
- new
-
Return Values
Returns TRUE on success or FALSE on failure.
Examples
Example #1 apc_cas() example
<?php
apc_store('foobar',2);
echo '$foobar = 2', PHP_EOL;
echo '$foobar == 1 ? 2 : 1 = ', (apc_cas('foobar', 1, 2) ? 'ok' : 'fail'), PHP_EOL;
echo '$foobar == 2 ? 1 : 2 = ', (apc_cas('foobar', 2, 1) ? 'ok' : 'fail'), PHP_EOL;
echo '$foobar = ', apc_fetch('foobar'), PHP_EOL;
echo '$f__bar == 1 ? 2 : 1 = ', (apc_cas('f__bar', 1, 2) ? 'ok' : 'fail'), PHP_EOL;
apc_store('perfection', 'xyz');
echo '$perfection == 2 ? 1 : 2 = ', (apc_cas('perfection', 2, 1) ? 'ok' : 'epic fail'), PHP_EOL;
echo '$foobar = ', apc_fetch('foobar'), PHP_EOL;
?>
The above example will output something similar to:
$foobar = 2 $foobar == 1 ? 2 : 1 = fail $foobar == 2 ? 1 : 2 = ok $foobar = 1 $f__bar == 1 ? 2 : 1 = fail $perfection == 2 ? 1 : 2 = epic fail $foobar = 1
See Also
- apc_dec() - Decrease a stored number
- apc_store() - Cache a variable in the data store
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