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PHP & OOP
- Thread starter vladibo
- Start date
sleipnir214
Programmer
When you store an object in a session, PHP stores a snapshot of that object's datastore.
When the session is read by the next script, the object is recreated.
The one "gotcha" is that the class definition for the object must appear in code before the session_start() function is invoked.
Want the best answers? Ask the best questions: TANSTAAFL!!
When the session is read by the next script, the object is recreated.
The one "gotcha" is that the class definition for the object must appear in code before the session_start() function is invoked.
Want the best answers? Ask the best questions: TANSTAAFL!!
- Thread starter
- #3
sleipnir214
Programmer
Why is this not good?
Want the best answers? Ask the best questions: TANSTAAFL!!
Want the best answers? Ask the best questions: TANSTAAFL!!
- Thread starter
- #5
But I love working with objects. Unfortunately I can not use java and c# for my current projects... Let us hope php 5 will be wiser
sleipnir214
Programmer
What makes you think objects are expensive in PHP?
Given the following three files and pointing my browser to test_session_object1.php:
test_session_object.inc:
test_session_object1.php:
test_session_object2.php:
There is no overhead above and beyond having to include the class-definition file to using sessions with objects versus sessions with simple variables.
Want the best answers? Ask the best questions: TANSTAAFL!!
Given the following three files and pointing my browser to test_session_object1.php:
test_session_object.inc:
Code:
<?php
class foo
{
var $fu;
function foo($fuvar)
{
$this->fu = $fuvar;
}
function display()
{
print '!!!' . $this->fu . '!!!';
}
}
?>test_session_object1.php:
Code:
<?php
include ('test_session_object.inc');
session_start();
$_SESSION['sessfu'] = new foo('a foo');
print '<html><body><a href="test_session_object2.php">click here</a></body></html>';
?>test_session_object2.php:
Code:
<?php
include ('test_session_object.inc');
session_start();
print '<html><body>';
$_SESSION['sessfu']->display();
print '</body></html>';
?>There is no overhead above and beyond having to include the class-definition file to using sessions with objects versus sessions with simple variables.
Want the best answers? Ask the best questions: TANSTAAFL!!
sleipnir214
Programmer
What is stored in the session store on my server's filesystem is:
sessfu|O:3:"foo":1:{s:2:"fu";s:5:"a foo";}
Which is a serialization of the object.
Want the best answers? Ask the best questions: TANSTAAFL!!
sessfu|O:3:"foo":1:{s:2:"fu";s:5:"a foo";}
Which is a serialization of the object.
Want the best answers? Ask the best questions: TANSTAAFL!!
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