Wordpress Loop get_the_id() -

-

i tried following functions in header.php, footer.php, single.php etc. 

var_dump(in_the_loop()); var_dump(get_the_id());

the first function gives false (meaning not in loop) , second function gives post id every single time.

description of get_the_id() wordpress :

retrieve numeric id of current post. tag must within loop.

i want simple explanation hell going on why post id if call function out of loop !?

must little strong get_the_id() ...delivers evil eye wordpress.

it works in header , non-loop (confirmed).

please note post/page interchangeable in conversation.

think of wp way -> have post id in way, time, every page, unless weird stuff or talk non-page edge cases. when @ install root (such site.com/) there posts being called, has displayed. there other settings impact post/page such static front page settings. on category listing, if there pages, got first id returned before loop.

on post/pages page id (more or less0 set before loop. result of url (pretty or ?p=123 format) dictating content. using pretty names, page @ site.com/foo-bar/ try if there content available via permalink rules "foo-bar". if there content, post id obtained. (simplified)

later in page build loop. however, before loop offered opportunities change, sort, or augment loop - such changing page ids looped or sorting.

regarding in_the_loop(), wp says

"true if caller within loop, false if loop hasn't started or has ended." via http://codex.wordpress.org/function_reference/in_the_loop

in_the_loop() evaluates if loop in action (loop being key wp world). important - when in loop wp can iterate on multiple page/post (ids).

i don't have 100% bulletproof explanation how id shows, when dig api , various methods hooking might result.

i understand confusion , agree you. think wp intended get_the_id() loop based tool, outside loop unpredictable results.

hope helps, enjoy working in wp, , hope to.


Comments

Post a Comment

Popular posts from this blog

python - Subclassed QStyledItemDelegate ignores Stylesheet -

-
i'm trying subclass qstyleditemdelegate remove focus rectangle in qcombobox . even though i'm calling base implementation of paint function , nothing else, result different. looks if parts of style-sheet influence bounding box of item taken consideration. class pstyleditemdelegate(qstyleditemdelegate): def __init__(self, *args, **kwds): super(pstyleditemdelegate, self).__init__(*args, **kwds) def paint(self, *args, **kwargs): qstyleditemdelegate.paint(*args, **kwargs) what have paint unmodified qstyleditemdelegate ? as suggested tried replacing pyside pyqt4 , works, appears bug. update pyside 1.1.2 1.2.1 result same. unfortunately switch breaks other parts of code, if there no other suggestions i'm going accept answer. edit bug tracked here
Read more

java - HttpClient 3.1 Connection pooling vs HttpClient 4.3.2 -

-
i have used httpclient3.1(java) connection pooling below : import org.apache.commons.httpclient.httpclient; import org.apache.commons.httpclient.multithreadedhttpconnectionmanager; import org.apache.commons.httpclient.params.httpclientparams; import org.apache.commons.httpclient.params.httpmethodparams; import org.apache.log4j.logger; public class httpclientmanager { private static logger logger = logger.getlogger(httpclientmanager.class); private static multithreadedhttpconnectionmanager connectionmanager = new multithreadedhttpconnectionmanager(); private static httpclientparams clientparams = new httpclientparams(); static { try { clientparams.makelenient(); clientparams.setauthenticationpreemptive(false); clientparams.setparameter(httpmethodparams.so_timeout, new integer(30000)); // set so_timeout clientparams.setparameter(httpmethodparams.head_body_check_timeout, new integer(3000)); // head responses ...
Read more

node.js - StackOverflow API not returning JSON -

-
i using node.js script gather data stackoverflow. know responses gzipped, put code in should take care of that. script follows: var request = require('request'); var zlib = require('zlib'); function getstackoverflowresponse(url, callback){ request(url, {encoding: null}, function(err, response, body){ if(response.headers['content-encoding'] == 'gzip'){ zlib.gunzip(body, function(err, dezipped) { callback(dezipped); }); } else { callback(body); } }); } var url = "https://api.stackexchange.com/docs/questions#pagesize=2&order=desc&min=2014-01-04&max=2014-02-02&sort=activity&tagged=apigee&filter=default&site=stackoverflow&run=true"; getstackoverflowresponse(url, function(questions) { console.log(questions); }); instead of getting json output, i'm getting following response: buffer 0d 0a 0d 0a 0d 0a 0d 0a 3c 21 44 4f 43 54 59 50 45 20 48...
Read more