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Description

Determines if the HTTP origin is an authorized one.

Usage

$string = is_allowed_http_origin( $origin );

Parameters

$origin

( string|null ) optional – Origin URL. If not provided, the value of get_http_origin() is used.

Returns

string Origin URL if allowed, empty string if not.

Source

File name: wordpress/wp-includes/http.php
Lines:

function is_allowed_http_origin( $origin = null ) {
  $origin_arg = $origin;

  if ( null === $origin ) {
    $origin = get_http_origin();
  }

  if ( $origin && ! in_array( $origin, get_allowed_http_origins(), true ) ) {
    $origin = '';
  }

  
/**
 * Change the allowed HTTP origin result.
 *
 * @since 3.4.0
 *
 * @param string $origin     Origin URL if allowed, empty string if not.
 * @param string $origin_arg Original origin string passed into is_allowed_http_origin function.
 */
  return apply_filters( 'allowed_http_origin', $origin, $origin_arg );
}
 

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