Rusty Keele wrote:
Hi,
Which is a better approach to use:
1. require_once('path/to/class.php');
or
2. if(!class_exists('path/to/class.php')) require('path/to/class.php');
I have been using the first approach in all my files where I need to
instantiate a specific class, but I am wondering if the second approach is more
efficient? Are there any benefits to using the second approach - such as less
caching of objects - or do these two statements do the same thing?
It depends on which version of PHP you are using. require_once was not
very efficient in PHP 4 and early versions of PHP 5. I believe it has
been fixed in later versions of PHP 5.
On a side not, you are passing a file path to class_exists. That is
incorrect. You should pass the class name.
On another side note, require, include, require_once and include_once
are language constructs not functions. You don't need the () and some
would tell you that it is incorrect to add them.
Scott Mattocks
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