What do you mean by ‘turn on/off’? As in, prevent a snippet from running on certain pages? If so, there is! If you post an example snippet here, I can show you how to add the extra code to make this work.
There is a built-in [code_snippet id=42] shortcode for displaying the code from a snippet inside a page or post. If you want to display actual content, I’d recommend taking a look at the example shortcode snippet and building something from that.
The plugin is called “code snippets” and when I click on it in the plugin admin page there appears checkboxes for running a particular set of code snippets. The code snippet I would like to mark as “on” or “off” from a different location than the admin page is shown below:
/* Automatically set the image Title, Alt-Text, Caption & Description upon upload
———————————————————————–*/
add_action( ‘add_attachment’, ‘my_set_image_meta_upon_image_upload’ );
function my_set_image_meta_upon_image_upload( $post_ID ) {
// Check if uploaded file is an image, else do nothing
if ( wp_attachment_is_image( $post_ID ) ) {
//$my_image_title = get_post( $post_ID )->post_title;
//$filename = basename( get_attached_file( $doc_id ) );
$my_image_title = basename( get_attached_file($post_ID ) );
// Sanitize the title: remove hyphens, underscores & extra
// spaces:
$my_image_title = preg_replace( ‘%\s*[-_\s]+\s*%’, ‘ ‘,
$my_image_title );
$my_image_title = preg_replace( ‘/\.jpg$/’, ”,
$my_image_title );
// Sanitize the title: capitalize first letter of every word
// (other letters lower case):
$my_image_title = ucwords( strtolower( $my_image_title ) );
//
//remove begining – category
$x = strpos($my_image_title,”By “);
$x = $x + 3;
$my_image_title = substr($my_image_title,$x);
//remove date at end
$my_image_title = substr($my_image_title,0,-9);
//save title
$x = strpos($my_image_title,” For “);
$x = $x + 5;
$title = substr($my_image_title,$x);
//save name
$x = strpos($my_image_title,” For “);
$name = substr($my_image_title,0,$x);
// title + name
$my_image_title = $title . ” – ” . $name;
//
// Create an array with the image meta (Title, Caption,
// Description) to be updated
// Note: comment out the Excerpt/Caption or Content/Description
// lines if not needed
$my_image_meta = array(
// Specify the image (ID) to be updated
‘ID’ => $post_ID,
// Set image Title to sanitized title
‘post_title’ => $my_image_title,
//remove classification text from title
// Set image Caption (Excerpt) to sanitized title
‘post_excerpt’ => $my_image_title,
// Set image Description (Content) to sanitized title
‘post_content’ => $my_image_title,
);
// Set the image Alt-Text
update_post_meta( $post_ID, ‘_wp_attachment_image_alt’,
$my_image_title );
// Set the image meta (e.g. Title, Excerpt, Content)
wp_update_post( $my_image_meta );
}
}