apply_filters( ‘wp_signature_url’, false|string $signature_url, string $url )

Filters the URL where the signature for a file is located.

Parameters

$signature_urlfalse|string: The URL where signatures can be found for a file, or false if none are known.
$urlstring: The URL being verified.

$signature_url = apply_filters( 'wp_signature_url', $signature_url, $url );

Used by	Description
download_url()`wp-admin/includes/file.php`	Downloads a URL to a local temporary file using the WordPress HTTP API.

Version	Description
5.2.0	Introduced.

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