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function is not described

preview_theme_ob_filter() WP 2.6.0

Deprecated in 4.3.0. It is no longer supported and can be removed in future releases. It is recommended to replace this function with the same one.

Callback function for ob_start() to capture all links in the theme.

No Hooks.

Return

String.

Usage

preview_theme_ob_filter( $content );
$content(string) (required)

Code of preview theme ob filter: wp-includes/deprecated.php WP 5.2.2

<?php
function preview_theme_ob_filter( $content ) {
	_deprecated_function( __FUNCTION__, '4.3.0' );
	return $content;
}