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Advance function in php Part 3

 
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Advance function in php Part 3
myharshdesigner
21 Jan, 2008 - 06:45 AM
Post #1

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CODE

<?php

$url = "ok/";

function __autoload($class_name)
{
    include_once("ok/".$class_name.".php");
}
$obj = new MyClass1();
$obj2 = new MyClass2();

$obj->show1();
echo "<br>";
$obj2->show2();
?>



in this example :-

__autoload is user define or predefine function ?


this function can work in php4 ?
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no2pencil
RE: Advance Function In Php Part 3
21 Jan, 2008 - 08:13 AM
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It looks to me like the function is question (__autoload) is only used to load another php page from the include directory. When __autoload is called, it can be passed a class name, then that class is loaded (include_once) from the ok directory.

What is interesting to me is that the variable $url is defined but then not used when it could have been.

CODE

$url = "ok/";

function __autoload($class_name)
{
    include_once("ok/".$class_name.".php"); // <-- if $url is changed, then this piece of code is still hard-coded to point to the directory.


I hope this helps answer your question.
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myharshdesigner
RE: Advance Function In Php Part 3
21 Jan, 2008 - 08:56 AM
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when i use this code i m getting an error.

my file which is on server is producing some error:-

Fatal error: Cannot instantiate non-existent class: myclass1 in /home/twtvindia/domains/kamaldigitallab.com/public_html/demo/demo.php on line 6

i cant able to understand so pl help me to solve this problem.


Thanks
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no2pencil
RE: Advance Function In Php Part 3
21 Jan, 2008 - 09:23 AM
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QUOTE(myharshdesigner @ 21 Jan, 2008 - 09:56 AM) *

when i use this code i m getting an error.

my file which is on server is producing some error:-

Fatal error: Cannot instantiate non-existent class: myclass1 in /home/twtvindia/domains/kamaldigitallab.com/public_html/demo/demo.php on line 6

i cant able to understand so pl help me to solve this problem.


Thanks

Is there a file "ok\myclass1.php" ??

Again, it looks to me as if the function __autoload takes an argument of the class name. It then tries to load another php file from the directory ok, with that as the file name.

so if you call __autoload(myclass); it is going to try to load "ok\myclass.php".

I hope this helps.
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