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Use clone to break object refs when setting and getting cache. see #8146 #8191

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git-svn-id: http://svn.automattic.com/wordpress/trunk@9740 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
ryan 2008-11-17 21:01:12 +00:00
parent f6dfabee5b
commit f6c2de0141
2 changed files with 12 additions and 1 deletions
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8
wp-includes/cache.php
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@ -313,7 +313,10 @@ class WP_Object_Cache {
if (isset ($this->cache[$group][$id])) {
$this->cache_hits += 1;
return $this->cache[$group][$id];
if ( is_object($this->cache[$group][$id]) )
return wp_clone($this->cache[$group][$id]);
else
return $this->cache[$group][$id];
}
if ( isset ($this->non_existant_objects[$group][$id]) )
@ -373,6 +376,9 @@ class WP_Object_Cache {
if (NULL === $data)
$data = '';
if ( is_object($data) )
$data = wp_clone($data);
$this->cache[$group][$id] = $data;
if(isset($this->non_existant_objects[$group][$id]))

5
wp-includes/functions.php
View File

@ -2872,4 +2872,9 @@ function wp_suspend_cache_invalidation($suspend = true) {
return $current_suspend;
}
function wp_clone($object) {
return version_compare(phpversion(), '5.0') < 0 ? $object : clone($object);
}
?>