The add_link_category_form_pre WordPress PHP action fires before the link category form is displayed.
Usage
add_action('add_link_category_form_pre', 'your_custom_function');
function your_custom_function($arg) {
// your custom code here
}
Parameters
$arg(object) – Arguments cast to an object.
More information
See WordPress Developer Resources: add_link_category_form_pre
Examples
Add a custom message before the link category form
Add a message to inform users about guidelines for creating link categories.
add_action('add_link_category_form_pre', 'custom_message_before_form');
function custom_message_before_form($arg) {
echo '<p><strong>Note:</strong> Please follow our guidelines while creating link categories.</p>';
}
Display the number of existing link categories
Show the total number of existing link categories before the form.
add_action('add_link_category_form_pre', 'display_existing_link_categories_count');
function display_existing_link_categories_count($arg) {
$categories_count = wp_count_terms('link_category');
echo '<p>Current number of link categories: ' . $categories_count . '</p>';
}
Add custom CSS styles to the link category form
Inject custom CSS styles for the link category form.
add_action('add_link_category_form_pre', 'add_custom_css_styles');
function add_custom_css_styles($arg) {
echo '<style>
.form-wrap { background-color: lightblue; }
.form-wrap input { border-color: darkblue; }
</style>';
}
Display a warning message if a maximum limit of link categories is reached
Show a warning message if the user has reached the maximum allowed number of link categories.
add_action('add_link_category_form_pre', 'max_link_categories_warning');
function max_link_categories_warning($arg) {
$max_categories = 50;
$categories_count = wp_count_terms('link_category');
if ($categories_count >= $max_categories) {
echo '<p><strong>Warning:</strong> You have reached the maximum limit of ' . $max_categories . ' link categories.</p>';
}
}
Add a custom input field to the link category form
Add an extra input field to the link category form for storing additional information.
add_action('add_link_category_form_pre', 'add_custom_input_field');
function add_custom_input_field($arg) {
echo '<div class="form-field">
<label for="custom_field">Custom Field:</label>
<input name="custom_field" type="text" id="custom_field" value="">
<p class="description">Enter custom information related to this link category.</p>
</div>';
}