apc_delete
apc_exists declaration if your PECL apc version is less than 3.1.4:
<?php
if(!function_exists('apc_exists'))
{
function apc_exists($keys)
{
$result;
apc_fetch($keys, $result);
return $result;
}
}
?>
apc_exists
(PECL apc >= 3.1.4)
apc_exists — Checks if APC key exists
Return Values
Returns TRUE if the key exists, otherwise FALSE Or if an array was passed to keys, then an array is returned that contains all existing keys, or an empty array if none exist.
Examples
Example #1 apc_exists() example
<?php
$fruit = 'apple';
$veggie = 'carrot';
apc_store('foo', $fruit);
apc_store('bar', $veggie);
if (apc_exists('foo')) {
echo "Foo exists: ";
echo apc_fetch('foo');
} else {
echo "Foo does not exist";
}
echo PHP_EOL;
if (apc_exists('baz')) {
echo "Baz exists.";
} else {
echo "Baz does not exist";
}
echo PHP_EOL;
$ret = apc_exists(array('foo', 'donotexist', 'bar'));
var_dump($ret);
?>
The above example will output something similar to:
Foo exists: apple
Baz does not exist
array(2) {
["foo"]=>
bool(true)
["bar"]=>
bool(true)
}
See Also
- apc_cache_info() - اطلاعات ذخیره شده در کاشه را از ذخیره داده APC بازیابی مینماید.
- apc_fetch() - بازیابی یک متغیر ذخیره شده از کشاه
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apc_exists - [1 notes]