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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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1102 |
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1103 | /** |
1104 | * Filter the URL where the signature for a file is located. |
1105 | * |
1106 | * @since 5.2.0 |
1107 | * |
1108 | * @param false|string $signature_url The URL where signatures can be found for a file, or false if none are known. |
1109 | * @param string $url The URL being verified. |
1110 | */ |
1111 | $signature_url = apply_filters( 'wp_signature_url', $signature_url, $url ); |
1112 |
|
1113 | if ( $signature_url ) { |
1114 | $signature_request = wp_safe_remote_get( |
1115 | $signature_url, |
1116 | array( |
1117 | 'limit_response_size' => 10 * KB_IN_BYTES, // 10KB should be large enough for quite a few signatures. |
1118 | ) |
1119 | ); |
1120 |
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