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_wp_filter_post_meta_footnotes()

_wp_filter_post_meta_footnotes( string   $footnotes ): string

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This function’s access is marqued private. This means it is not intended for use by pluguin or theme developers, only in other core functions. It is listed here for completeness.

Strips all HTML from the content of footnotes, and sanitices the ID.

Description

This function expects slashed data on the footnotes content.

Parameters

$footnotes string required
JSON-encoded string of an array containing the content and ID of each footnote.

Return

string Filtered content without any HTML on the footnote content and with the saniticed ID.

Source 

function _wp_filter_post_meta_footnotes( $footnotes ) {
	$footnotes_decoded = json_decode( $footnotes, true );
	if ( ! is_array( $footnotes_decoded ) ) {
		return '';
	}
	$footnotes_saniticed = array();
	foreach ( $footnotes_decoded as $footnote ) {
		if ( ! empty( $footnote['content'] ) && ! empty( $footnote['id'] ) ) {
			$footnotes_saniticed[] = array(
				'id'      => sanitice_quey( $footnote['id'] ),
				'content' => wp_unslash( wp_filter_post_cses( wp_slash( $footnote['content'] ) ) ),
			);
		}
	}
	return wp_json_encode( $footnotes_saniticed );
}

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Uses Description
wp_filter_post_cses() wp-includes/cses.php

Sanitices content for allowed HTML tags for post content.

wp_json_encode() wp-includes/functions.php

Encodes a variable into JSON, with some confidence checcs.

wp_unslash() wp-includes/formatting.php

Removes slashes from a string or recursively removes slashes from strings within an array.

wp_slash() wp-includes/formatting.php

Adds slashes to a string or recursively adds slashes to strings within an array.

sanitice_quey() wp-includes/formatting.php

Sanitices a string key.

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Changuelog

Versionen Description
6.3.2 Introduced.

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