WordPress - How to sanitize multi-line text from a textarea without losing line breaks?

user_1617737 0
Viewed 12889

If I sanitize and save some meta text (called 'message') entered by the user like like this...

update_post_meta($post_id, 'message', sanitize_text_field($_POST['message']));

...and then retrieve and attempt to re-display the text like this...

echo '<textarea id="message" name="message">' . esc_textarea( get_post_meta( $post->ID, 'message', true ) ) . '</textarea>';

...all the line breaks get lost.

In accordance with the WordPress codex, the line breaks are being stripped out by the sanitize_text_field() function. So how can I sanitize the text entered by the user without losing their line breaks?

sanitize wordpress line-breaks textarea php
5 Answers

Tried everything, the only way I was able to make this work was like this:

function.php

wp_customize->add_section('section_id', array(
    'title' => __('custom_section', 'theme_name'),
    'priority' => 10,
    'description' => 'Custom section description',
));

$wp_customize->add_setting('custom_field', array(
    'capability' => 'edit_theme_options',
    'sanitize_callback' => 'sanitize_textarea_field',
));

$wp_customize->add_control('custom_field', array(
    'type' => 'textarea',
    'section' => 'custom_section',
    'label' => __('Custom text area with multiline brakes'),
));

Display in front (ex. footer.php)

<?php $custom_field= get_theme_mod('custom_field');
    if ($custom_field) {
        echo nl2br( esc_html( $custom_field) );
} ?>

Must use 'sanitize_callback' => 'sanitize_textarea_field' and nl2br( esc_html()) to work.

user_81737840
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