call the given function with given arguments only if there is no cache about it ;
else, the output of the function is read from the cache then send to the browser and
the return value if read also from the cache and returned.
<?php
require_once('Cache/Lite/Function.php');
$options = array(
'cacheDir' => '/tmp/',
'lifeTime' => 3600
);
$cache = new Cache_Lite_Function($options);
$cache->call('function_to_bench', 12, 45);
function function_to_bench($arg1, $arg2)
{
echo "This is the output of the function function_to_bench($arg1, $arg2) !<br>";
return "This is the result of the function function_to_bench($arg1, $arg2) !<br>";
}
?>
<?php
require_once('Cache/Lite/Function.php');
$options = array(
'cacheDir' => '/tmp/',
'lifeTime' => 3600
);
$cache = new Cache_Lite_Function($options);
$obj = new bench();
$obj->test = 666;
$cache->call('obj->method_to_bench', 12, 45);
class bench
{
var $test;
function method_to_bench($arg1, $arg2)
{
echo "\$obj->test = $this->test and this is the output of the method \$obj->method_to_bench($arg1, $arg2) !<br>";
return "\$obj->test = $this->test and this is the result of the method \$obj->method_to_bench($arg1, $arg2) !<br>";
}
}
?>
If you try to use Cache_Lite_Function with $this object ($cache->call('this->method',...)
for example), have a look first at the last example of this page.
<?php
require_once('Cache/Lite/Function.php');
$options = array(
'cacheDir' => '/tmp/',
'lifeTime' => 3600
);
$cache = new Cache_Lite_Function($options);
$cache->call('bench::static_method_to_bench', 12, 45);
class bench
{
var $test;
function static_method_to_bench($arg1, $arg2) {
echo "This is the output of the function static_method_to_bench($arg1, $arg2) !<br>";
return "This is the result of the function static_method_to_bench($arg1, $arg2) !<br>";
}
}
?>
<?php
// Since Cache_Lite-1.7.0beta2
require_once('Cache/Lite/Function.php');
$options = array(
'cacheDir' => '/tmp/',
'lifeTime' => 3600
);
$obj = new foo($options);
class foo
{
var $test;
function foo($options)
{
$cache = new Cache_Lite_Function($options);
$this->test = 'foobar';
$cache->call(array(&$this, 'method_bar'), 12, 45);
}
function method_bar($arg1, $arg2)
{
echo "\$this->test = $this->test and this is the output of the method \$this->method_bar($arg1, $arg2) !<br>";
return "\$this->test = $this->test and this is the result of the method \$this->method_bar($arg1, $arg2) !<br>";
}
}
?>
So, for method calls, the best way is to use array(&$object, 'nameOfTheMethod') as first argument instead
of '$object->nameOfTheMethod' which doesn't work with "$this" for example.
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