Modify wp-signup.php WordPress

Dbranes answers:

hi, here is a modified code from

http://www.scribd.com/doc/76015425/279/Creating-a-New-Site

I changed this into a shortcode so you can embed this into any page on your frontend:

[create_site]


The following assumes you are using multisite with subdirectories and the owner of the new sites is <em>user_id=1</em>:



add_shortcode( 'create_site', 'custom_multisite_create_site' );

function custom_multisite_create_site($atts) {
//check if multisite is enabled
if ( is_multisite() ) {

//if the form was submitted lets process it
if ( isset( $_POST['create_site'] ) ) {

//populate the variables based on form values
$domain = esc_html( $_POST['domain'] );
$path = esc_html( $_POST['path'] );
$title = esc_html( $_POST['title'] );

$path=str_replace("/","",$path);
$path="/".$path;
//verify the required values are set
if ( $domain && $path && $title ) {

//create the new site in WordPress
$new_site = wpmu_create_blog( $domain, $path, $title, 1 );

//if successfully display a message
if ( $new_site ) {
echo '<div class="updated">New site ' .$new_site. ' created successfully!</div>';
}

//if required values are not set display an error
} else {
echo '<div class="error">New site could not be created. Required fields are missing</div>';
}
}
?>

<div class="wrap">
<h2>Create New Site</h2>
<form method="post">
<table class="form-table">
<tr valign="top">
<th scope="row"><label for="fname">Domain</label></th>
<td><input maxlength="45" size="25" name="domain" value="<?php echo DOMAIN_CURRENT_SITE; ?>" /></td>
</tr>
<tr valign="top">
<th scope="row"><label for="fname">Path</label></th>
<td><input maxlength="45" size="10" name="path" /></td>
</tr>
<tr valign="top">
<th scope="row"><label for="fname">Title</label></th>
<td><input maxlength="45" size="25" name="title" /></td>
</tr>
<tr valign="top">
<td>
<input type="submit" name="create_site" value="Create Site" class="button-primary" />
</td>
</tr>
</table>
</form>
</div>
<?php
} else {
echo '<p>Multisite is not enabled</p>';
}
}


TheLoneCuber comments:

Wow. This is awesome. It works, albeit with two errors. (* I am still testing on a local server, so I'm not sure if this would cause the problem?)

1 - echo DOMAIN_CURRENT_SITE; is causing an error in the Domain input (on the frontend *before* the form is submitted).
The input is actually filled with the following text ...

"<br />Notice: Use of undefined constant DOMAIN_CURRENT_SITE - assumed 'DOMAIN_CURRENT_SITE' in [local-path]/wp-content/themes/[theme-name]/functions.php on line 88<br />DOMAIN_CURRENT_SITE"


2 - But it does still register the new site. And after the new site is submitted, this is success message that is being generated also includes some reference to the error) .....

"Notice: Uninitialized string offset: 0 in /Users/life/Sites/tweet.ed/wp-includes/ms-functions.php on line 990
New site 17 created successfully!"

Dbranes comments:

ok, the constant DOMAIN_CURRENT_SITE is working on my multisite install.

You can try to replace it with your own domain string (fx. "example.com")

Are you using subdomains or subdirectories?

ps: You can also use the action

add_action('wpmu_new_blog', 'custom_create_function');


to hook into the creation and change theme options etc.

TheLoneCuber comments:

This method <strong>works very well</strong> and is the direction and simplicity I was hoping for. However <strong>I have discovered a small problem</strong>.

The inputs <strong>allows *any* characters</strong> at all. That means site names like *#%} can be registered.

I need to filter the input. I guess that'll be preg_match? But I don't have the skills to write it in.