Automatically set the image Title, Alt-Text, Caption & Description upon upload

PHOTO EMBED

Fri May 07 2021 18:15:24 GMT+0000 (UTC)

Saved by @Alz #php #wordpress

// 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;
 
        // Sanitize the title:  remove hyphens, underscores & extra spaces:
        $my_image_title = preg_replace( '%\s*[-_\s]+\s*%', ' ',  $my_image_title );
 
        // Sanitize the title:  capitalize first letter of every word (other letters lower case):
        $my_image_title = ucwords( strtolower( $my_image_title ) );
 
        // 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(
            'ID'        => $post_ID,            // Specify the image (ID) to be updated
            'post_title'    => $my_image_title,     // Set image Title to sanitized title
            'post_excerpt'  => $my_image_title,     // Set image Caption (Excerpt) to sanitized title
            'post_content'  => $my_image_title,     // Set image Description (Content) to sanitized 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 );
 
    } 
}
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