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For questions about the server-side programming language that the WordPress core, plugins and themes are written in. Questions about using PHP outside a WordPress context are off-topic but might be asked on Stack Overflow.

2
votes
You are basically looking for a form plugin. IIRC Gravity Forms (Wordpress Plugin) has the feature of creating multiple-steps forms.
answered Jan 22 '11 by hakre
4
votes
); ?> ... single post template html/php mixture ... <?php } print("</div>\n"); } } Some additional notes: CSS class names can not start with a number. Please see the CSS …
answered Jul 19 '12 by hakre
2
votes
Wordpress itself only is on or off. Sometimes, but that's only by chance and not by design, you can work around that. But in your case, I'm not really sure if it's possible. Instead of wp-blog-header …
answered Sep 12 '11 by hakre
2
votes
You can integrate the wordpress authentication with the apache webserver and then configure which additional resources need a login on your webserver. This works with PHP as well with HTML and images. For more information, please see mod_auth_mysql and phpass. …
answered Sep 28 '11 by hakre
2
votes
1answer
While coding WP I just wondered about this simple fact: get_usermeta() is deprecated since version 3.0. The warning suggests me to use get_user_meta(). Even the parameters are pretty similar, I wonde …
asked Feb 9 '11 by hakre
1
vote
2answers
I'm a bit puzzled when I after some time did another Wordpress install. I'm using a standard Apache + PHP 7 combination (even under version control) and after checking out 4.6.1 of Wordpress (the … } thrown in /wp-includes/wp-db.php on line 1561` I'm a bit puzzled that the current Wordpress version still is based on the (outdated) php-mysql extension. Maybe I'm missing some configuration setting …
asked Sep 26 '16 by hakre
1
vote
. Gain knowledge about which user is executing PHP on your server. Identify the username and -id. Write both down. If you can not find out about the user, contact your hoster for the information. Check …
answered Dec 25 '10 by hakre
2
votes
This guy explains it fairly well for wordpress (video, no transcript): Yoav Farhi: Right to Left WordPress. The Wordpress Manual (Codex) has as well some information regarding Right to Left Language …
answered Jun 15 '11 by hakre
1
vote
part of the database result that is used within Wordpress PHP userland code and therefore it is not part of the meta-cache and therefore never makes it into the meta API functions (because they access …
answered Aug 19 '13 by hakre
1
vote
From the top of my head, get_day_link() does not work for custom post types. This might work in 3.1 as you can add archives to your custom post types.
answered Nov 20 '10 by hakre
1
vote
In wordpress you can do that with so called nonces: WordPress Nonces (Codex) Add a nonce to your form and when send, check if the nonce is correct. The next time the form get's submitted, the nonce i …
answered Feb 9 '11 by hakre
4
votes
) { $array = $GLOBALS['wp_query']->query_vars; return array_key_exists($var_name, $array); } What makes this so easy is that array_key_exists() returns true or false. Normally to test any PHP variable …
answered Feb 6 '11 by hakre
3
votes
Upgrade to PHP 5.2 or above The Error Message you see is by WordPress. It's very misleading what it basically saying is, that you need a PHP version >= 5.2 for that feature to work. Please look … into your operating systems documentation or contact technical support on how to update your PHP version. For CentOS, for example: CentOS HowTos: PHP 5.1 To 5.2 Keep Timezones Upgraded To get the most …
answered Aug 19 '10 by hakre
25
votes
of a class in OOAD. Does using classes create performance overheads for PHP? No, not notably. Bad design and/or bad written code or pre-mature optimisation creates far more performance problems … can be re-used between hooks which is not possible with standard global functions. The following code-example shows the pattern: <?php /** Plugin Headers ... */ return MyPlugin::bootstrap …
answered Aug 17 '11 by hakre
3
votes
looking for a (better) file-system abstraction than/next to the built-in one, consider the file-system objects in SPL which is part of PHP already. …
answered Feb 2 '11 by hakre

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