WordPress.org
Get WordPress
WordPress.org

WordPress Developer Resources

wp_kses_no_null()

wp_kses_no_null( string $content, array $options = null ): string

In this article

Back to top

Removes any invalid control characters in a text string.

Description

Also removes any instance of the \0 string.

Parameters

$contentstringrequired
Content to filter null characters from.
$optionsarrayoptional
Set 'slash_zero' => 'keep' when '' is allowed. Default is 'remove'.

Default:null

Return

string Filtered content.

Source

function wp_kses_no_null( $content, $options = null ) {
	if ( ! isset( $options['slash_zero'] ) ) {
		$options = array( 'slash_zero' => 'remove' );
	}

	$content = preg_replace( '/[\x00-\x08\x0B\x0C\x0E-\x1F]/', '', $content );
	if ( 'remove' === $options['slash_zero'] ) {
		$content = preg_replace( '/\\\\+0+/', '', $content );
	}

	return $content;
}

View all references View on Trac View on GitHub

Used byDescription
wp_kses_one_attr()wp-includes/kses.php

Filters one HTML attribute and ensures its value is allowed.

wp_sanitize_redirect()wp-includes/pluggable.php

Sanitizes a URL for use in a redirect.

safecss_filter_attr()wp-includes/kses.php

Filters an inline style attribute and removes disallowed rules.

wp_kses_bad_protocol()wp-includes/kses.php

Sanitizes a string and removed disallowed URL protocols.

wp_kses()wp-includes/kses.php

Filters text content and strips out disallowed HTML.

get_the_content()wp-includes/post-template.php

Retrieves the post content.

Show 1 moreShow less

Changelog

VersionDescription
1.0.0Introduced.

User Contributed Notes

You must log in before being able to contribute a note or feedback.