# profile-builder/3.16.1/add-ons-free/maximum-character-length/maximum-character-length.php

User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor, version 3.16.1. 79 lines.

- Page: https://pluginprobe.com/plugins/profile-builder/3.16.1/code/add-ons-free/maximum-character-length/maximum-character-length.php
- Raw: https://pluginprobe.com/plugins/profile-builder/3.16.1/raw/add-ons-free/maximum-character-length/maximum-character-length.php
- Modified: 2024-09-02T10:26:58+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/profile-builder/3.16.1/code/add-ons-free/maximum-character-length/maximum-character-length.php#L10-L20`.

```php
<?php
// Exit if accessed directly
if ( ! defined( 'ABSPATH' ) ) exit;

/*
Description: Extends the functionality of Profile Builder by allowing you to set a maximum character length for the custom input and textarea fields.
*/

/*
 * Function that enqueues the necessary scripts
 *
 * @since v.1.0.0
 */
function wppb_mcl_scripts($hook) {
    if ( $hook == 'profile-builder_page_manage-fields' ) {
        wp_enqueue_script( 'wppb-max-char-length', plugin_dir_url(__FILE__) . 'assets/js/main.js', array( 'jquery', 'wppb-manage-fields-live-change' ) );
    }
}
add_action( 'admin_enqueue_scripts', 'wppb_mcl_scripts' );

/*
 * Function that adds maximum character length to the field properties in manage fields
 *
 * @since v.1.0.0
 *
 * @param array $fields - The current field properties
 *
 * @return array        - The field properties that now include the maximum character length property
 */
function wppb_mcl_manage_field( $fields ) {
    $max_length_manage_field = array( 'type' => 'text', 'slug' => 'maximum-character-length', 'title' => __( 'Maximum Character Length', 'profile-builder' ), 'description' => __( "Specify the maximum number of characters a user can type in this field", 'profile-builder' ) );
    array_push( $fields, $max_length_manage_field );

    return $fields;
}
add_filter( 'wppb_manage_fields', 'wppb_mcl_manage_field' );

/*
 * Function that checks to see if the maximum character length that the user entered is
 * a number, we don't want random strings
 *
 * @since v.1.0.0
 *
 * @param string $message           - The error messages that will be displayed to the user
 * @param array $posted_values      - The information the user has entered for the field
 *
 * @return string
 */
function wppb_mcl_check_max_character_length( $message, $posted_values ) {

    if ( isset( $posted_values['maximum-character-length'] ) && !is_numeric( $posted_values['maximum-character-length'] ) && !empty( $posted_values['maximum-character-length'] ) )
        $message .= __( "The entered character number is not numerical\n", 'profile-builder' );

    return $message;
}
add_filter( 'wppb_check_extra_manage_fields', 'wppb_mcl_check_max_character_length', 10, 2 );

/*
 * Function that changes the default maximum character length with the one
 * the user has set
 *
 * @since v.1.0.0
 *
 * @param int $default_value
 * @param array $field
 *
 * @return int
 */
function wppb_mcl_set_max_character_length( $default_value, $field = '' ) {
    $output = $default_value;

    if( isset( $field['maximum-character-length'] ) && !empty( $field['maximum-character-length'] ) ) {
        $output = (int)$field['maximum-character-length'];
    }

    return $output;
}
add_filter( 'wppb_maximum_character_length', 'wppb_mcl_set_max_character_length', 10 , 2);

```