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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
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2227 | $required_text = sprintf( ' ' . __( 'Required fields are marked %s' ), '<span class="required">*</span>' ); |
2228 |
|
2229 | /** |
2230 | * Filters the default comment form fields. |
2231 | * |
2232 | * @since 3.0.0 |
2233 | * |
2234 | * @param array $fields The default comment fields. |
2235 | */ |
2236 | $fields = apply_filters( 'comment_form_default_fields', $fields ); |
2237 | $defaults = array( |
2238 | 'fields' => $fields, |
2239 | 'comment_field' => '<p class="comment-form-comment"><label for="comment">' . _x( 'Comment', 'noun' ) . '</label> <textarea id="comment" name="comment" cols="45" rows="8" maxlength="65525" required="required"></textarea></p>', |
2240 | /** This filter is documented in wp-includes/link-template.php */ |
2241 | 'must_log_in' => '<p class="must-log-in">' . sprintf( |
2242 | /* translators: %s: login URL */ |
2243 | __( 'You must be <a href="%s">logged in</a> to post a comment.' ), |
2244 | wp_login_url( apply_filters( 'the_permalink', get_permalink( $post_id ), $post_id ) ) |
2245 | ) . '</p>', |