Qual è la differenza tra home_url () e site_url ()

Staifacendo due domande contemporaneamente:

1. Qual è la differenzatra home_url()e site_url()?
2. Comefaccio afarein modo che WordPress restituisca l'URL root senza la sottodirectoryin cui èinstallato?

Ecco le rispostee ho confermato con Andrew Nacin,uno sviluppatoreprincipale di WordPress,oltre aeseguire alcunitest del serverper confermare ciò chemi ha detto Andrew.

Domandan. 1

In Generale> Impostazioni di wp-admin,home_url()fa riferimento al campoetichettato "Indirizzo sito (URL)". Confusione,eh? Sì,dice "Indirizzo sito" quindipotrestipresumere site_url(),ma sbaglieresti . Eseguiiltuoteste vedrai. (Puoi rilasciaretemporaneamente un campo echo H1 coni valori site_url()e home_url()nellaparte superiore delfilefunctions.php deltuotema. )

Nelfrattempo,site_url()fa riferimento al campo denominato "Indirizzo WordPress (URL)"in Generali> Impostazioni.

Quindi,se desiderifare riferimento a dovepotrebbeessere unpercorsofisico,adesempio chiamareilpercorso della cartella di unplug-in sull'URLper caricare un'immagine o chiamareilpercorso della cartella di untemaper caricare un'immagine,dovrestieffettivamente utilizzare altrefunzioniper quelli -guarda plugins_url()e get_template_directory_uri().

site_url() sarà sempre laposizionein cuipuoi raggiungereil sito virando su /wp-admin allafine,mentre home_url()non sarebbe affidabile questaposizione.

Il home_url() sarebbeilpuntoin cui haiimpostato latua homepageimpostandoil campo Generale> Impostazioni "Indirizzo sito (URL)".

Domandan. 2

Quindi,se hoposizionatoilmioblogin http://example.com/bloge example.com è solo un sito staticoin cui ho cometema delportfolio,quindi questo sarebbe uno scenario che si allinea con latua domanda. Intal caso,utilizzerei questoframmento di codice:

 <?php
function getDomain() {
    $sURL    = site_url(); // WordPress function
    $asParts = parse_url( $sURL ); // PHP function

    if ( ! $asParts )
      wp_die( 'ERROR: Path corrupt for parsing.' ); // replace this with a better error result

    $sScheme = $asParts['scheme'];
    $nPort   = $asParts['port'];
    $sHost   = $asParts['host'];
    $nPort   = 80 == $nPort ? '' : $nPort;
    $nPort   = 'https' == $sScheme AND 443 == $nPort ? '' : $nPort;
    $sPort   = ! empty( $sPort ) ? ":$nPort" : '';
    $sReturn = $sScheme . '://' . $sHost . $sPort;

    return $sReturn;
}
 

You are asking two questions at once:

1. What's the difference between home_url() and site_url()?
2. How do I get WordPress to return the URL root without the subdirectory where it's installed?

Here are the answers, and I confirmed with Andrew Nacin, a core developer of WordPress, as well as ran some server tests to confirm what Andrew told me.

Question # 1

In General > Settings of wp-admin, home_url() references the field labeled "Site Address (URL)". Confusing, huh? Yeah, it says "Site Address" so you might assume site_url(), but you'd be wrong. Run your own test and you'll see. (You can temporarily drop an echo H1 field with site_url() and home_url() values at the top of your your theme's functions.php.)

Meanwhile, site_url() references the field labeled "WordPress Address (URL)" in General > Settings.

So, if you're wanting to reference where a physical path might be such as calling a plugin's folder path on the URL to load an image, or calling a theme's folder path to load an image, you should actually use other functions for those - look at plugins_url() and get_template_directory_uri().

The site_url() will always be the location where you can reach the site by tacking on /wp-admin on the end, while home_url() would not reliably be this location.

The home_url() would be where you have set your homepage by setting General > Settings "Site Address (URL)" field.

Question # 2

So, if I have placed my blog in http://example.com/blog, and example.com is just some static site where I have like a portfolio theme, then this would be a scenario that lines up with your question. In such a case, then I would use this snippet of code:

<?php
function getDomain() {
    $sURL    = site_url(); // WordPress function
    $asParts = parse_url( $sURL ); // PHP function

    if ( ! $asParts )
      wp_die( 'ERROR: Path corrupt for parsing.' ); // replace this with a better error result

    $sScheme = $asParts['scheme'];
    $nPort   = $asParts['port'];
    $sHost   = $asParts['host'];
    $nPort   = 80 == $nPort ? '' : $nPort;
    $nPort   = 'https' == $sScheme AND 443 == $nPort ? '' : $nPort;
    $sPort   = ! empty( $sPort ) ? ":$nPort" : '';
    $sReturn = $sScheme . '://' . $sHost . $sPort;

    return $sReturn;
}

Se vuoi che WP siainstallatoin una directoryma la home del sitonella root deltuo dominio,devi spostareilfileindex.phpprincipalenella root deltuo dominioe modificare l'istruzione requirein modo chepunti all'interno dellatua directory.

Questoprocesso è descritto qui: Dare a WordPress lapropria directory .

If you want WP installed in a directory but the site home on your domain root, you need to move the main index.php file out to your domain root and edit the require statement to point within your directory.

This process is outlined here: Giving WordPress Its Own Directory.

Lefunzioni site_url()e home_url() sono similie possono creare confusionenelmodoin cuifunzionano.

Lafunzione site_url() recuperail valoreper siteurlnellatabella wp_options del database.

Questo è l'URL deifileprincipali di WordPress.
Sei tuoifile coreesistonoin una sottodirectory /wordpress sultuo server web,il valore sarebbe http://example.com/wordpress.

Lafunzione home_url() recuperail valoreper homenellatabella wp_options del database.

Questo è l'indirizzo che vuoi che lepersone visitinoper visualizzareiltuo sito web WordPress.

Sei tuoifile core di WordPressesistonoin /wordpress,ma desideri che l'URL deltuo sito web sia http://example.com,il valore home dovrebbeessere http://example.com.

The site_url() and home_url() functions are similar and can lead to confusion in how they work.

The site_url() function retrieves the value value for siteurl in the wp_options table in your database.

This is the URL to the WordPress core files.
If your core files exist in a subdirectory /wordpress on your web server, the value would be http://example.com/wordpress.

The home_url() function retrieves the value for home in the wp_options table in your database.

This is the address you want people to visit to view your WordPress web site.

If your WordPress core files exist in /wordpress, but you want your web site URL to be http://example.com the home value should be http://example.com.

Per rispondere allatua seconda domanda:

D: Se è corretto,possofarein modo che wordpress restituisca http://example.com/?

Nonpuoi,ameno chetunon svolgai passaggi Dare a WordPress lapropria directory . Usarlo significa chemetti ifile core di WordPressin /blog o /WordPress e poi index.php nellatua root.

Se decidi dimettere WordPressnella sua directory,useresti home_url () per andare a index.php e site_url () per ottenerefile coree simili.

Rinfreschi:
Codexper site_url
Codexper home_url
Codexfor Giving Wordpress Own Directory

To answer your second question:

Q: If that's correct, then can I get wordpress to return http://example.com/ ?

You can't, unless you take the Giving WordPress its own directory steps. Using this means you put WordPress core files into /blog or /WordPress and then the index.php into your root.

If you decide to put WordPress inside its own directory then you would use home_url() for going to index.php and site_url() for getting core files and such.

Refrences:
Codex for site_url
Codex for home_url
Codex for Giving Wordpress Own Directory

Ilmodopiù sempliceper ottenere l'URL del sito senza sottodirectory ( http://example.com/invecedi http://example.com/blog ),utilizza semplicemente labarra rovesciata /

Adesempio,se digiti:

 <a href="/">domain url</a>
 

Creerà un collegamento che va altuo dominio

The easiest way to get the site url without any sub-directories ( http://example.com/ instead of http://example.com/blog ), just use the backslash /

For example, if you type:

<a href="/">domain url</a>

It will create a link that goes to your domain