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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
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1259 |
|
1260 | /** |
1261 | * Filters the URL where the signature for a file is located. |
1262 | * |
1263 | * @since 5.2.0 |
1264 | * |
1265 | * @param false|string $signature_url The URL where signatures can be found for a file, or false if none are known. |
1266 | * @param string $url The URL being verified. |
1267 | */ |
1268 | $signature_url = apply_filters( 'wp_signature_url', $signature_url, $url ); |
1269 |
|
1270 | if ( $signature_url ) { |
1271 | $signature_request = wp_safe_remote_get( |
1272 | $signature_url, |
1273 | array( |
1274 | 'limit_response_size' => 10 * KB_IN_BYTES, // 10KB should be large enough for quite a few signatures. |
1275 | ) |
1276 | ); |
1277 |
|