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What if __sleep doesn't return anything, fix example (bug #40344)

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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@232491 c90b9560-bf6c-de11-be94-00142212c4b1
This commit is contained in:
Jakub Vrana 2007-03-24 08:23:49 +00:00
parent 3a16879095
commit d03f51b401
2 changed files with 13 additions and 7 deletions
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7
language/oop.xml
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@ -1,5 +1,5 @@
<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.66 $ -->
<!-- $Revision: 1.67 $ -->
<chapter id="language.oop">
<title>Classes and Objects (PHP 4)</title>
@ -755,11 +755,12 @@ $b->example();
being run prior to any serialization. It can clean up the object
and is supposed to return an array with the names of all variables
of that object that should be serialized.
If the method doesn't return anything then &null; is serialized and
E_NOTICE is issued.
</para>
<para>
The intended use of <literal>__sleep</literal> is to close any
database connections that object may have, committing pending
The intended use of <literal>__sleep</literal> is to commit pending
data or perform similar cleanup tasks. Also, the function is
useful if you have very large objects which need not be
saved completely.

13
language/oop5/magic.xml
View file

@ -1,5 +1,5 @@
<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.13 $ -->
<!-- $Revision: 1.14 $ -->
<sect1 id="language.oop5.magic">
<title>Magic Methods</title>
<para>
@ -41,14 +41,19 @@
executed prior to any serialization. It can clean up the object
and is supposed to return an array with the names of all variables
of that object that should be serialized.
If the method doesn't return anything then &null; is serialized and
E_NOTICE is issued.
</para>
<para>
The intended use of <literal>__sleep</literal> is to close any
database connections that the object may have, commit pending
The intended use of <literal>__sleep</literal> is to commit pending
data or perform similar cleanup tasks. Also, the function is
useful if you have very large objects which do not need to be
saved completely.
</para>
<para>
The <literal>__sleep</literal> method should return the value to serialize
(usually <literal>$this</literal>), otherwise &null; is serialized.
</para>
<para>
Conversely, <function>unserialize</function> checks for the
presence of a function with the magic name
@ -87,7 +92,7 @@ class Connection {
public function __sleep()
{
mysql_close($this->link);
return array('server', 'username', 'password', 'db');
}
public function __wakeup()