| public increment ( string $key, mixed $by_value = 1, integer $limit_keys_count, integer $ttl = 259200 ) : integer | string | array | ||
| $key | string | |
| $by_value | mixed | if stored value is an array: if $by_value is a value in array, new element will be pushed to the end of array, if $by_value is a key=>value array, new key=>value pair will be added (or updated) |
| $limit_keys_count | integer | - maximum count of elements (used only if stored value is array) |
| $ttl | integer | - set time to live for key |
| return | integer | string | array | new value of key |
public function increment($key, $by_value = 1, $limit_keys_count = 0, $ttl = 259200)
{
if (!$this->acquire_key($key, $auto_unlocker)) {
return false;
}
$value = apc_fetch($this->prefix . $key, $success);
if (!$success) {
if ($this->save($key, $by_value, $ttl)) {
return $by_value;
} else {
return false;
}
}
if (is_array($value)) {
$value = $this->incrementArray($limit_keys_count, $value, $by_value);
} elseif (is_numeric($value) && is_numeric($by_value)) {
$value = $value + $by_value;
} else {
$value .= $by_value;
}
if ($this->save($key, $value, $ttl)) {
return $value;
} else {
return false;
}
}