function cachedInclude($script, $env = array(), $expire = null)
{
$this->cacheMembers = array('html');
$this->cacheState = 'include-' . str_replace('\\', '-', str_replace('/', '-', $script));
$this->cacheState .= '-' . abs(crc32(serialize($env)));
if (!$this->cacheRestore()) {
extract($env);
ob_start();
include $script;
$this->html = ob_get_flush();
if (!$expire) {
$expire = new CacheExpire();
}
$expire->filemtimeChanged($script);
// The cache is invalid if the included file has changed
$this->cacheStore($expire);
} else {
echo $this->html;
}
}
function changeDate($var)
{
$this->cacheState[] = 'changed-' . $var;
// We use array as state. We assume a second call to the changeDate
// function must not be considered the same as the first one, and thus a new state is used
// if you call the function 3 times with $var='str1'. The state of the third call will be 'changed-var1-changed-var1-changed-var1'.
// If the call simply reads from the db and stores the data in the members - you dont need this -
// simply use $this->cacheState='changed-'.$var;
if (!$this->cacheRestore()) {
echo "No cache! Heavy read here!...";
sleep(2);
echo "done!\n";
// Lets say this is some heavy compyting here, and the results are written to member1 and 2
$this->member1[] = $var;
$this->member2 .= $var;
$this->cacheStore(CacheExpire::create()->timeout(60));
} else {
echo "Cache was hit!\n";
}
}
public $member2 = 'abc';
function changeDate($var)
{
echo "No cache! Heavy read here!...";
sleep(2);
echo "done!\n";
// Lets say this is some heavy compyting here, and the results are written to member1 and 2
$this->member1[] = $var;
$this->member2 .= $var;
}
}
$obj = new obj_to_cache2();
$obj->cacheState = 'changed-str1';
if (!$obj->cacheRestore()) {
$obj->changeDate('str1');
$obj->cacheStore(CacheExpire::create()->timeout(60));
} else {
// Cache was hit!
echo "Cache hit!\n";
}
var_dump($obj);
/**
* Outputs (1st execute):
*
No cache! Heavy read here!...done!
object(obj_to_cache2)#1 (4) {
["member1"]=>
array(2) {
["a"]=>
int(1)
[0]=>
public $member2 = 'abc';
function changeDate($var)
{
echo "No cache! Heavy read here!...";
sleep(2);
echo "done!\n";
// Lets say this is some heavy compyting here, and the results are written to member1 and 2
$this->member1[] = $var;
$this->member2 .= $var;
}
}
// At a later stage, or another script
$obj = new obj_to_cache();
if (!Cacheable::sCacheRestore($obj, 'changed-str1')) {
$obj->changeDate('str1');
Cacheable::sCacheStore($obj, 'changed-str1', CacheExpire::create()->timeout(60));
} else {
// Cache was hit!
echo "Cache hit!\n";
}
var_dump($obj);
/**
* Outputs (1st execute):
*
No cache! Heavy read here!...done!
object(obj_to_cache)#1 (2) {
["member1"]=>
array(2) {
["a"]=>
int(1)
[0]=>
private function loadDefinitions($classes)
{
if ($this->definitions_loaded) {
return;
}
$this->cacheState = $classes;
array_unshift($this->cacheState, 'defs');
if (!$this->cacheRestore()) {
$exp = new CacheExpire();
foreach ($classes as $class) {
$doc = new php_doc($class);
$refl = new ReflectionClass($class);
$vers = $doc->getTags('version', php_doc::TYPE_GENERIC);
if (!$vers[0]) {
$vers = $doc->getTags('ver', php_doc::TYPE_GENERIC);
}
$ver = @$vers[0]['name'];
if (!isset($ver)) {
$ver = '0';
}
$this->versions[$class] = $ver;
$historys = $doc->getTags('history', php_doc::TYPE_KEYVALUE);
if ($historys[0] && $historys[0]['key']) {
$file = $historys[0]['value'];
if ($file && $file[0] != '/' && $file[0] != '\\') {
$file = dirname($refl->getFileName()) . '/' . $file;
}
$this->histories[$class] = array($historys[0]['key'], $file);
} else {
continue;
}
$exp->filemtimeChanged($refl->getFileName());
}
$this->cacheMembers = array('versions', 'histories');
$this->cacheStore($exp);
}
}
<?php
/**
* Static use of cacheable - capable of caching any object!
*/
require 'CacheHelper.php';
CacheHelper::$cacheDir = dirname(__FILE__) . '/cache';
// Configure the cache dir
class helper
{
function fn($var1)
{
return 'Result from helper->fn @ ' . date('r');
}
static function static_fn($var2)
{
return 'Result from helper::static_fn @ ' . date('r');
}
}
function fn($var3)
{
return 'Result from fn @ ' . date('r');
}
$cache = new CacheHelper();
echo $cache->cachedCall(array('helper', 'static_fn'), array('value1'), CacheExpire::create()->timeout(60)) . "\n";
echo $cache->cachedCall('helper::static_fn', array('value1'), CacheExpire::create()->timeout(60)) . "\n";
echo $cache->cachedCall('fn', array('value1'), CacheExpire::create()->timeout(60)) . "\n";
$obj = new helper();
echo $cache->cachedCall(array($obj, 'fn'), array('value1'), CacheExpire::create()->timeout(60)) . "\n";
<?php
/**
* Static use of cacheable - capable of caching any object!
*/
require 'CacheHelper.php';
CacheHelper::$cacheDir = dirname(__FILE__) . '/cache';
// Configure the cache dir
$param1 = 'value2';
$cache = new CacheHelper();
$cache->cachedInclude('CacheHelper_include.php', null, CacheExpire::create()->timeout(60));
