eventespresso / event-espresso-core

core/services/cache/TransientCacheStorage.php

Indentation +375 added lines, -375 removed lines

@@ -19,381 +19,381 @@
 class TransientCacheStorage implements CacheStorageInterface
 {
 
-    /**
-     * wp-option option_name for tracking transients
-     *
-     * @type string
-     */
-    const TRANSIENT_SCHEDULE_OPTIONS_KEY = 'ee_transient_schedule';
-
-    /**
-     * @var int $current_time
-     */
-    private $current_time;
-
-    /**
-     * how often to perform transient cleanup
-     *
-     * @var string $transient_cleanup_frequency
-     */
-    private $transient_cleanup_frequency;
-
-    /**
-     * options for how often to perform transient cleanup
-     *
-     * @var array $transient_cleanup_frequency_options
-     */
-    private $transient_cleanup_frequency_options = array();
-
-    /**
-     * @var array $transients
-     */
-    private $transients;
-
-
-
-    /**
-     * TransientCacheStorage constructor.
-     */
-    public function __construct()
-    {
-        $this->transient_cleanup_frequency = $this->setTransientCleanupFrequency();
-        // round current time down to closest 5 minutes to simplify scheduling
-        $this->current_time = $this->roundTimestamp(time(), '5-minutes', false);
-        $this->transients = (array)get_option(TransientCacheStorage::TRANSIENT_SCHEDULE_OPTIONS_KEY, array());
-        if ( ! (defined('DOING_AJAX') && DOING_AJAX) && $this->transient_cleanup_frequency !== 'off') {
-            add_action('shutdown', array($this, 'checkTransientCleanupSchedule'), 999);
-        }
-    }
-
-
-
-    /**
-     * Sets how often transient cleanup occurs
-     *
-     * @return string
-     */
-    private function setTransientCleanupFrequency()
-    {
-        // sets how often transients are cleaned up
-        $this->transient_cleanup_frequency_options = apply_filters(
-            'FHEE__TransientCacheStorage__transient_cleanup_schedule_options',
-            array(
-                'off',
-                '15-minutes',
-                'hour',
-                '12-hours',
-                'day',
-            )
-        );
-        $transient_cleanup_frequency = apply_filters(
-            'FHEE__TransientCacheStorage__transient_cleanup_schedule',
-            'hour'
-        );
-        return in_array(
-            $transient_cleanup_frequency,
-            $this->transient_cleanup_frequency_options,
-            true
-        )
-            ? $transient_cleanup_frequency
-            : 'hour';
-    }
-
-
-
-    /**
-     * we need to be able to round timestamps off to match the set transient cleanup frequency
-     * so if a transient is set to expire at 1:17 pm for example, and our cleanup schedule is every hour,
-     * then that timestamp needs to be rounded up to 2:00 pm so that it is removed
-     * during the next scheduled cleanup after its expiration.
-     * We also round off the current time timestamp to the closest 5 minutes
-     * just to make the timestamps a little easier to round which helps with debugging.
-     *
-     * @param int    $timestamp [required]
-     * @param string $cleanup_frequency
-     * @param bool   $round_up
-     * @return int
-     */
-    private function roundTimestamp($timestamp, $cleanup_frequency = 'hour', $round_up = true)
-    {
-        $cleanup_frequency = $cleanup_frequency ? $cleanup_frequency : $this->transient_cleanup_frequency;
-        // in order to round the time to the closest xx minutes (or hours),
-        // we take the minutes (or hours) portion of the timestamp and divide it by xx,
-        // round down to a whole number, then multiply by xx to bring us almost back up to where we were
-        // why round down ? so the minutes (or hours) don't go over 60 (or 24)
-        // and bump the hour, which could bump the day, which could bump the month, etc,
-        // which would be bad because we don't always want to round up,
-        // but when we do we can easily achieve that by simply adding the desired offset,
-        $minutes = '00';
-        $hours = 'H';
-        switch ($cleanup_frequency) {
-            case '5-minutes' :
-                $minutes = floor((int)date('i', $timestamp) / 5) * 5;
-                $minutes = str_pad($minutes, 2, '0', STR_PAD_LEFT);
-                $offset = MINUTE_IN_SECONDS * 5;
-                break;
-            case '15-minutes' :
-                $minutes = floor((int)date('i', $timestamp) / 15) * 15;
-                $minutes = str_pad($minutes, 2, '0', STR_PAD_LEFT);
-                $offset = MINUTE_IN_SECONDS * 15;
-                break;
-            case '12-hours' :
-                $hours = floor((int)date('H', $timestamp) / 12) * 12;
-                $hours = str_pad($hours, 2, '0', STR_PAD_LEFT);
-                $offset = HOUR_IN_SECONDS * 12;
-                break;
-            case 'day' :
-                $hours = '03'; // run cleanup at 3:00 am (or first site hit after that)
-                $offset = DAY_IN_SECONDS;
-                break;
-            case 'hour' :
-            default :
-                $offset = HOUR_IN_SECONDS;
-                break;
-        }
-        $rounded_timestamp = (int) strtotime(date("Y-m-d {$hours}:{$minutes}:00", $timestamp));
-        $rounded_timestamp += $round_up ? $offset : 0;
-        return apply_filters(
-            'FHEE__TransientCacheStorage__roundTimestamp__timestamp',
-            $rounded_timestamp,
-            $timestamp,
-            $cleanup_frequency,
-            $round_up
-        );
-    }
-
-
-
-    /**
-     * Saves supplied data to a transient
-     * if an expiration is set, then it automatically schedules the transient for cleanup
-     *
-     * @param string $transient_key [required]
-     * @param string $data          [required]
-     * @param int    $expiration    number of seconds until the cache expires
-     * @return bool
-     */
-    public function add($transient_key, $data, $expiration = 0)
-    {
-        $expiration = (int)abs($expiration);
-        $saved = set_transient($transient_key, $data, $expiration);
-        if ($saved && $expiration) {
-            $this->scheduleTransientCleanup($transient_key, $expiration);
-        }
-        return $saved;
-    }
-
-
-
-    /**
-     * retrieves transient data
-     * automatically triggers early cache refresh for standard cache items
-     * in order to avoid cache stampedes on busy sites.
-     * For non-standard cache items like PHP Session data where early refreshing is not wanted,
-     * the $standard_cache parameter should be set to false when retrieving data
-     *
-     * @param string $transient_key [required]
-     * @param bool   $standard_cache
-     * @return mixed|null
-     */
-    public function get($transient_key, $standard_cache = true)
-    {
-        if (isset($this->transients[ $transient_key ])) {
-            // to avoid cache stampedes (AKA:dogpiles) for standard cache items,
-            // check if known cache expires within the next minute,
-            // and if so, remove it from our tracking and and return nothing.
-            // this should trigger the cache content to be regenerated during this request,
-            // while allowing any following requests to still access the existing cache
-            // until it gets replaced with the refreshed content
-            if (
-                $standard_cache
-                && $this->transients[$transient_key] - time() <= MINUTE_IN_SECONDS
-            ) {
-                unset($this->transients[$transient_key]);
-                $this->updateTransients();
-                return null;
-            }
-
-            // for non standard cache items, remove the key from our tracking,
-            // but proceed to retrieve the transient so that it also gets removed from the db
-            if ($this->transients[$transient_key] <= time()) {
-                unset($this->transients[$transient_key]);
-                $this->updateTransients();
-            }
-        }
-
-        $content = get_transient($transient_key);
-        return $content !== false ? $content : null;
-    }
-
-
-
-    /**
-     * delete a single transient and remove tracking
-     *
-     * @param string $transient_key [required] full or partial transient key to be deleted
-     */
-    public function delete($transient_key)
-    {
-        $this->deleteMany(array($transient_key));
-    }
-
-
-
-    /**
-     * delete multiple transients and remove tracking
-     *
-     * @param array $transient_keys [required] array of full or partial transient keys to be deleted
-     * @param bool  $force_delete   [optional] if true, then will not check incoming keys against those being tracked
-     *                              and proceed directly to deleting those entries from the cache storage
-     */
-    public function deleteMany(array $transient_keys, $force_delete = false)
-    {
-        $full_transient_keys = $force_delete ? $transient_keys : array();
-        if(empty($full_transient_keys)){
-            foreach ($this->transients as $transient_key => $expiration) {
-                foreach ($transient_keys as $transient_key_to_delete) {
-                    if (strpos($transient_key, $transient_key_to_delete) !== false) {
-                        $full_transient_keys[] = $transient_key;
-                    }
-                }
-            }
-        }
-        if ($this->deleteTransientKeys($full_transient_keys)) {
-            $this->updateTransients();
-        }
-    }
-
-
-
-    /**
-     * sorts transients numerically by timestamp
-     * then saves the transient schedule to a WP option
-     */
-    private function updateTransients()
-    {
-        asort($this->transients, SORT_NUMERIC);
-        update_option(
-            TransientCacheStorage::TRANSIENT_SCHEDULE_OPTIONS_KEY,
-            $this->transients
-        );
-    }
-
-
-
-    /**
-     * schedules a transient for cleanup by adding it to the transient tracking
-     *
-     * @param string $transient_key [required]
-     * @param int    $expiration    [required]
-     */
-    private function scheduleTransientCleanup($transient_key, $expiration)
-    {
-        // make sure a valid future timestamp is set
-        $expiration += $expiration < time() ? time() : 0;
-        // and round to the closest 15 minutes
-        $expiration = $this->roundTimestamp($expiration);
-        // save transients to clear using their ID as the key to avoid duplicates
-        $this->transients[$transient_key] = $expiration;
-        $this->updateTransients();
-    }
-
-
-
-    /**
-     * Since our tracked transients are sorted by their timestamps
-     * we can grab the first transient and see when it is scheduled for cleanup.
-     * If that timestamp is less than or equal to the current time,
-     * then cleanup is triggered
-     */
-    public function checkTransientCleanupSchedule()
-    {
-        if (empty($this->transients)) {
-            return;
-        }
-        // when do we run the next cleanup job?
-        reset($this->transients);
-        $next_scheduled_cleanup = current($this->transients);
-        // if the next cleanup job is scheduled for the current hour
-        if ($next_scheduled_cleanup <= $this->current_time) {
-            if ($this->cleanupExpiredTransients()) {
-                $this->updateTransients();
-            }
-        }
-    }
-
-
-
-    /**
-     * loops through the array of tracked transients,
-     * compiles a list of those that have expired, and sends that list off for deletion.
-     * Also removes any bad records from the transients array
-     *
-     * @return bool
-     */
-    private function cleanupExpiredTransients()
-    {
-        $update = false;
-        // filter the query limit. Set to 0 to turn off garbage collection
-        $limit = (int)abs(
-            apply_filters(
-                'FHEE__TransientCacheStorage__clearExpiredTransients__limit',
-                50
-            )
-        );
-        // non-zero LIMIT means take out the trash
-        if ($limit) {
-            $transient_keys = array();
-            foreach ($this->transients as $transient_key => $expiration) {
-                if ($expiration > $this->current_time) {
-                    continue;
-                }
-                if ( ! $expiration || ! $transient_key) {
-                    unset($this->transients[$transient_key]);
-                    $update = true;
-                    continue;
-                }
-                $transient_keys[] = $transient_key;
-            }
-            // delete expired keys, but maintain value of $update if nothing is deleted
-            $update = $this->deleteTransientKeys($transient_keys, $limit) ? true : $update;
-            do_action( 'FHEE__TransientCacheStorage__clearExpiredTransients__end', $this);
-        }
-        return $update;
-    }
-
-
-
-    /**
-     * calls delete_transient() on each transient key provided, up to the specified limit
-     *
-     * @param array $transient_keys [required]
-     * @param int   $limit
-     * @return bool
-     */
-    private function deleteTransientKeys(array $transient_keys, $limit = 50)
-    {
-        if (empty($transient_keys)) {
-            return false;
-        }
-        $counter = 0;
-        foreach ($transient_keys as $transient_key) {
-            if($counter === $limit){
-                break;
-            }
-            // remove any transient prefixes
-            $transient_key = strpos($transient_key,  '_transient_timeout_') === 0
-                ? str_replace('_transient_timeout_', '', $transient_key)
-                : $transient_key;
-            $transient_key = strpos($transient_key,  '_transient_') === 0
-                ? str_replace('_transient_', '', $transient_key)
-                : $transient_key;
-            delete_transient($transient_key);
-            unset($this->transients[$transient_key]);
-            $counter++;
-        }
-        return $counter > 0;
-    }
+	/**
+	 * wp-option option_name for tracking transients
+	 *
+	 * @type string
+	 */
+	const TRANSIENT_SCHEDULE_OPTIONS_KEY = 'ee_transient_schedule';
+
+	/**
+	 * @var int $current_time
+	 */
+	private $current_time;
+
+	/**
+	 * how often to perform transient cleanup
+	 *
+	 * @var string $transient_cleanup_frequency
+	 */
+	private $transient_cleanup_frequency;
+
+	/**
+	 * options for how often to perform transient cleanup
+	 *
+	 * @var array $transient_cleanup_frequency_options
+	 */
+	private $transient_cleanup_frequency_options = array();
+
+	/**
+	 * @var array $transients
+	 */
+	private $transients;
+
+
+
+	/**
+	 * TransientCacheStorage constructor.
+	 */
+	public function __construct()
+	{
+		$this->transient_cleanup_frequency = $this->setTransientCleanupFrequency();
+		// round current time down to closest 5 minutes to simplify scheduling
+		$this->current_time = $this->roundTimestamp(time(), '5-minutes', false);
+		$this->transients = (array)get_option(TransientCacheStorage::TRANSIENT_SCHEDULE_OPTIONS_KEY, array());
+		if ( ! (defined('DOING_AJAX') && DOING_AJAX) && $this->transient_cleanup_frequency !== 'off') {
+			add_action('shutdown', array($this, 'checkTransientCleanupSchedule'), 999);
+		}
+	}
+
+
+
+	/**
+	 * Sets how often transient cleanup occurs
+	 *
+	 * @return string
+	 */
+	private function setTransientCleanupFrequency()
+	{
+		// sets how often transients are cleaned up
+		$this->transient_cleanup_frequency_options = apply_filters(
+			'FHEE__TransientCacheStorage__transient_cleanup_schedule_options',
+			array(
+				'off',
+				'15-minutes',
+				'hour',
+				'12-hours',
+				'day',
+			)
+		);
+		$transient_cleanup_frequency = apply_filters(
+			'FHEE__TransientCacheStorage__transient_cleanup_schedule',
+			'hour'
+		);
+		return in_array(
+			$transient_cleanup_frequency,
+			$this->transient_cleanup_frequency_options,
+			true
+		)
+			? $transient_cleanup_frequency
+			: 'hour';
+	}
+
+
+
+	/**
+	 * we need to be able to round timestamps off to match the set transient cleanup frequency
+	 * so if a transient is set to expire at 1:17 pm for example, and our cleanup schedule is every hour,
+	 * then that timestamp needs to be rounded up to 2:00 pm so that it is removed
+	 * during the next scheduled cleanup after its expiration.
+	 * We also round off the current time timestamp to the closest 5 minutes
+	 * just to make the timestamps a little easier to round which helps with debugging.
+	 *
+	 * @param int    $timestamp [required]
+	 * @param string $cleanup_frequency
+	 * @param bool   $round_up
+	 * @return int
+	 */
+	private function roundTimestamp($timestamp, $cleanup_frequency = 'hour', $round_up = true)
+	{
+		$cleanup_frequency = $cleanup_frequency ? $cleanup_frequency : $this->transient_cleanup_frequency;
+		// in order to round the time to the closest xx minutes (or hours),
+		// we take the minutes (or hours) portion of the timestamp and divide it by xx,
+		// round down to a whole number, then multiply by xx to bring us almost back up to where we were
+		// why round down ? so the minutes (or hours) don't go over 60 (or 24)
+		// and bump the hour, which could bump the day, which could bump the month, etc,
+		// which would be bad because we don't always want to round up,
+		// but when we do we can easily achieve that by simply adding the desired offset,
+		$minutes = '00';
+		$hours = 'H';
+		switch ($cleanup_frequency) {
+			case '5-minutes' :
+				$minutes = floor((int)date('i', $timestamp) / 5) * 5;
+				$minutes = str_pad($minutes, 2, '0', STR_PAD_LEFT);
+				$offset = MINUTE_IN_SECONDS * 5;
+				break;
+			case '15-minutes' :
+				$minutes = floor((int)date('i', $timestamp) / 15) * 15;
+				$minutes = str_pad($minutes, 2, '0', STR_PAD_LEFT);
+				$offset = MINUTE_IN_SECONDS * 15;
+				break;
+			case '12-hours' :
+				$hours = floor((int)date('H', $timestamp) / 12) * 12;
+				$hours = str_pad($hours, 2, '0', STR_PAD_LEFT);
+				$offset = HOUR_IN_SECONDS * 12;
+				break;
+			case 'day' :
+				$hours = '03'; // run cleanup at 3:00 am (or first site hit after that)
+				$offset = DAY_IN_SECONDS;
+				break;
+			case 'hour' :
+			default :
+				$offset = HOUR_IN_SECONDS;
+				break;
+		}
+		$rounded_timestamp = (int) strtotime(date("Y-m-d {$hours}:{$minutes}:00", $timestamp));
+		$rounded_timestamp += $round_up ? $offset : 0;
+		return apply_filters(
+			'FHEE__TransientCacheStorage__roundTimestamp__timestamp',
+			$rounded_timestamp,
+			$timestamp,
+			$cleanup_frequency,
+			$round_up
+		);
+	}
+
+
+
+	/**
+	 * Saves supplied data to a transient
+	 * if an expiration is set, then it automatically schedules the transient for cleanup
+	 *
+	 * @param string $transient_key [required]
+	 * @param string $data          [required]
+	 * @param int    $expiration    number of seconds until the cache expires
+	 * @return bool
+	 */
+	public function add($transient_key, $data, $expiration = 0)
+	{
+		$expiration = (int)abs($expiration);
+		$saved = set_transient($transient_key, $data, $expiration);
+		if ($saved && $expiration) {
+			$this->scheduleTransientCleanup($transient_key, $expiration);
+		}
+		return $saved;
+	}
+
+
+
+	/**
+	 * retrieves transient data
+	 * automatically triggers early cache refresh for standard cache items
+	 * in order to avoid cache stampedes on busy sites.
+	 * For non-standard cache items like PHP Session data where early refreshing is not wanted,
+	 * the $standard_cache parameter should be set to false when retrieving data
+	 *
+	 * @param string $transient_key [required]
+	 * @param bool   $standard_cache
+	 * @return mixed|null
+	 */
+	public function get($transient_key, $standard_cache = true)
+	{
+		if (isset($this->transients[ $transient_key ])) {
+			// to avoid cache stampedes (AKA:dogpiles) for standard cache items,
+			// check if known cache expires within the next minute,
+			// and if so, remove it from our tracking and and return nothing.
+			// this should trigger the cache content to be regenerated during this request,
+			// while allowing any following requests to still access the existing cache
+			// until it gets replaced with the refreshed content
+			if (
+				$standard_cache
+				&& $this->transients[$transient_key] - time() <= MINUTE_IN_SECONDS
+			) {
+				unset($this->transients[$transient_key]);
+				$this->updateTransients();
+				return null;
+			}
+
+			// for non standard cache items, remove the key from our tracking,
+			// but proceed to retrieve the transient so that it also gets removed from the db
+			if ($this->transients[$transient_key] <= time()) {
+				unset($this->transients[$transient_key]);
+				$this->updateTransients();
+			}
+		}
+
+		$content = get_transient($transient_key);
+		return $content !== false ? $content : null;
+	}
+
+
+
+	/**
+	 * delete a single transient and remove tracking
+	 *
+	 * @param string $transient_key [required] full or partial transient key to be deleted
+	 */
+	public function delete($transient_key)
+	{
+		$this->deleteMany(array($transient_key));
+	}
+
+
+
+	/**
+	 * delete multiple transients and remove tracking
+	 *
+	 * @param array $transient_keys [required] array of full or partial transient keys to be deleted
+	 * @param bool  $force_delete   [optional] if true, then will not check incoming keys against those being tracked
+	 *                              and proceed directly to deleting those entries from the cache storage
+	 */
+	public function deleteMany(array $transient_keys, $force_delete = false)
+	{
+		$full_transient_keys = $force_delete ? $transient_keys : array();
+		if(empty($full_transient_keys)){
+			foreach ($this->transients as $transient_key => $expiration) {
+				foreach ($transient_keys as $transient_key_to_delete) {
+					if (strpos($transient_key, $transient_key_to_delete) !== false) {
+						$full_transient_keys[] = $transient_key;
+					}
+				}
+			}
+		}
+		if ($this->deleteTransientKeys($full_transient_keys)) {
+			$this->updateTransients();
+		}
+	}
+
+
+
+	/**
+	 * sorts transients numerically by timestamp
+	 * then saves the transient schedule to a WP option
+	 */
+	private function updateTransients()
+	{
+		asort($this->transients, SORT_NUMERIC);
+		update_option(
+			TransientCacheStorage::TRANSIENT_SCHEDULE_OPTIONS_KEY,
+			$this->transients
+		);
+	}
+
+
+
+	/**
+	 * schedules a transient for cleanup by adding it to the transient tracking
+	 *
+	 * @param string $transient_key [required]
+	 * @param int    $expiration    [required]
+	 */
+	private function scheduleTransientCleanup($transient_key, $expiration)
+	{
+		// make sure a valid future timestamp is set
+		$expiration += $expiration < time() ? time() : 0;
+		// and round to the closest 15 minutes
+		$expiration = $this->roundTimestamp($expiration);
+		// save transients to clear using their ID as the key to avoid duplicates
+		$this->transients[$transient_key] = $expiration;
+		$this->updateTransients();
+	}
+
+
+
+	/**
+	 * Since our tracked transients are sorted by their timestamps
+	 * we can grab the first transient and see when it is scheduled for cleanup.
+	 * If that timestamp is less than or equal to the current time,
+	 * then cleanup is triggered
+	 */
+	public function checkTransientCleanupSchedule()
+	{
+		if (empty($this->transients)) {
+			return;
+		}
+		// when do we run the next cleanup job?
+		reset($this->transients);
+		$next_scheduled_cleanup = current($this->transients);
+		// if the next cleanup job is scheduled for the current hour
+		if ($next_scheduled_cleanup <= $this->current_time) {
+			if ($this->cleanupExpiredTransients()) {
+				$this->updateTransients();
+			}
+		}
+	}
+
+
+
+	/**
+	 * loops through the array of tracked transients,
+	 * compiles a list of those that have expired, and sends that list off for deletion.
+	 * Also removes any bad records from the transients array
+	 *
+	 * @return bool
+	 */
+	private function cleanupExpiredTransients()
+	{
+		$update = false;
+		// filter the query limit. Set to 0 to turn off garbage collection
+		$limit = (int)abs(
+			apply_filters(
+				'FHEE__TransientCacheStorage__clearExpiredTransients__limit',
+				50
+			)
+		);
+		// non-zero LIMIT means take out the trash
+		if ($limit) {
+			$transient_keys = array();
+			foreach ($this->transients as $transient_key => $expiration) {
+				if ($expiration > $this->current_time) {
+					continue;
+				}
+				if ( ! $expiration || ! $transient_key) {
+					unset($this->transients[$transient_key]);
+					$update = true;
+					continue;
+				}
+				$transient_keys[] = $transient_key;
+			}
+			// delete expired keys, but maintain value of $update if nothing is deleted
+			$update = $this->deleteTransientKeys($transient_keys, $limit) ? true : $update;
+			do_action( 'FHEE__TransientCacheStorage__clearExpiredTransients__end', $this);
+		}
+		return $update;
+	}
+
+
+
+	/**
+	 * calls delete_transient() on each transient key provided, up to the specified limit
+	 *
+	 * @param array $transient_keys [required]
+	 * @param int   $limit
+	 * @return bool
+	 */
+	private function deleteTransientKeys(array $transient_keys, $limit = 50)
+	{
+		if (empty($transient_keys)) {
+			return false;
+		}
+		$counter = 0;
+		foreach ($transient_keys as $transient_key) {
+			if($counter === $limit){
+				break;
+			}
+			// remove any transient prefixes
+			$transient_key = strpos($transient_key,  '_transient_timeout_') === 0
+				? str_replace('_transient_timeout_', '', $transient_key)
+				: $transient_key;
+			$transient_key = strpos($transient_key,  '_transient_') === 0
+				? str_replace('_transient_', '', $transient_key)
+				: $transient_key;
+			delete_transient($transient_key);
+			unset($this->transients[$transient_key]);
+			$counter++;
+		}
+		return $counter > 0;
+	}
 
 
 

Spacing +12 added lines, -12 removed lines

@@ -60,7 +60,7 @@ 
         $this->transient_cleanup_frequency = $this->setTransientCleanupFrequency();
         // round current time down to closest 5 minutes to simplify scheduling
         $this->current_time = $this->roundTimestamp(time(), '5-minutes', false);
-        $this->transients = (array)get_option(TransientCacheStorage::TRANSIENT_SCHEDULE_OPTIONS_KEY, array());
+        $this->transients = (array) get_option(TransientCacheStorage::TRANSIENT_SCHEDULE_OPTIONS_KEY, array());
         if ( ! (defined('DOING_AJAX') && DOING_AJAX) && $this->transient_cleanup_frequency !== 'off') {
             add_action('shutdown', array($this, 'checkTransientCleanupSchedule'), 999);
         }
@@ -128,17 +128,17 @@ 
         $hours = 'H';
         switch ($cleanup_frequency) {
             case '5-minutes' :
-                $minutes = floor((int)date('i', $timestamp) / 5) * 5;
+                $minutes = floor((int) date('i', $timestamp) / 5) * 5;
                 $minutes = str_pad($minutes, 2, '0', STR_PAD_LEFT);
                 $offset = MINUTE_IN_SECONDS * 5;
                 break;
             case '15-minutes' :
-                $minutes = floor((int)date('i', $timestamp) / 15) * 15;
+                $minutes = floor((int) date('i', $timestamp) / 15) * 15;
                 $minutes = str_pad($minutes, 2, '0', STR_PAD_LEFT);
                 $offset = MINUTE_IN_SECONDS * 15;
                 break;
             case '12-hours' :
-                $hours = floor((int)date('H', $timestamp) / 12) * 12;
+                $hours = floor((int) date('H', $timestamp) / 12) * 12;
                 $hours = str_pad($hours, 2, '0', STR_PAD_LEFT);
                 $offset = HOUR_IN_SECONDS * 12;
                 break;
@@ -175,7 +175,7 @@ 
      */
     public function add($transient_key, $data, $expiration = 0)
     {
-        $expiration = (int)abs($expiration);
+        $expiration = (int) abs($expiration);
         $saved = set_transient($transient_key, $data, $expiration);
         if ($saved && $expiration) {
             $this->scheduleTransientCleanup($transient_key, $expiration);
@@ -198,7 +198,7 @@ 
      */
     public function get($transient_key, $standard_cache = true)
     {
-        if (isset($this->transients[ $transient_key ])) {
+        if (isset($this->transients[$transient_key])) {
             // to avoid cache stampedes (AKA:dogpiles) for standard cache items,
             // check if known cache expires within the next minute,
             // and if so, remove it from our tracking and and return nothing.
@@ -250,7 +250,7 @@ 
     public function deleteMany(array $transient_keys, $force_delete = false)
     {
         $full_transient_keys = $force_delete ? $transient_keys : array();
-        if(empty($full_transient_keys)){
+        if (empty($full_transient_keys)) {
             foreach ($this->transients as $transient_key => $expiration) {
                 foreach ($transient_keys as $transient_key_to_delete) {
                     if (strpos($transient_key, $transient_key_to_delete) !== false) {
@@ -335,7 +335,7 @@ 
     {
         $update = false;
         // filter the query limit. Set to 0 to turn off garbage collection
-        $limit = (int)abs(
+        $limit = (int) abs(
             apply_filters(
                 'FHEE__TransientCacheStorage__clearExpiredTransients__limit',
                 50
@@ -357,7 +357,7 @@ 
             }
             // delete expired keys, but maintain value of $update if nothing is deleted
             $update = $this->deleteTransientKeys($transient_keys, $limit) ? true : $update;
-            do_action( 'FHEE__TransientCacheStorage__clearExpiredTransients__end', $this);
+            do_action('FHEE__TransientCacheStorage__clearExpiredTransients__end', $this);
         }
         return $update;
     }
@@ -378,14 +378,14 @@ 
         }
         $counter = 0;
         foreach ($transient_keys as $transient_key) {
-            if($counter === $limit){
+            if ($counter === $limit) {
                 break;
             }
             // remove any transient prefixes
-            $transient_key = strpos($transient_key,  '_transient_timeout_') === 0
+            $transient_key = strpos($transient_key, '_transient_timeout_') === 0
                 ? str_replace('_transient_timeout_', '', $transient_key)
                 : $transient_key;
-            $transient_key = strpos($transient_key,  '_transient_') === 0
+            $transient_key = strpos($transient_key, '_transient_') === 0
                 ? str_replace('_transient_', '', $transient_key)
                 : $transient_key;
             delete_transient($transient_key);