PHP code example of upscale / stdlib-object-lifecycle

1. Go to this page and download the library: Download upscale/stdlib-object-lifecycle library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

upscale / stdlib-object-lifecycle example snippets


$obj1 = new \stdClass();
$obj2 = new \stdClass();
$obj3 = new \stdClass();

// Circular references subject to garbage collection
$obj1->ref = $obj2;
$obj2->ref = $obj1;

$watcher = new \Upscale\Stdlib\Object\Lifecycle\Watcher();
$watcher->watch($obj1);
$watcher->watch([$obj2, $obj3]);

unset($obj1);

// Outputs 3 because of circular references
echo count($watcher->detectAliveObjects());

unset($obj2);

// Outputs 3 because of pending garbage collection 
echo count($watcher->detectAliveObjects(false));

// Outputs 1 after forced garbage collection 
echo count($watcher->detectAliveObjects());

unset($obj3);

// Outputs 0 and 3 respectively
echo count($watcher->detectAliveObjects());
echo count($watcher->detectGoneObjects());


array(
  array(
    'type' => 'stdClass',
    'hash' => '00000000524c32e1000000002cee0034',
    'trace' => '#0 demo.php(26): Upscale\\Stdlib\\Object\\Lifecycle\\Watcher->watch(Object(stdClass))
#1 demo.php(10): Example->runTest()
#2 demo.php(53): Example->test()
#3 {main}',
  ),
  ...
)