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Description

Generates a unique function ID based on the given arguments.

Usage

$string = _test_filter_build_unique_id( $tag, $function, $priority );

Parameters

$tag

( string ) required – Unused. The name of the filter to build ID for.

$function

( callable ) required – The function to generate ID for.

$priority

( int ) required – Unused. The order in which the functions associated with a particular action are executed.

Returns

string Unique function ID for usage as array key.

Source

File name: wordpress-develop-tests/phpunit/includes/functions.php

function _test_filter_build_unique_id( $tag, $function, $priority ) {
  if ( is_string( $function ) ) {
    return $function;
  }

  if ( is_object( $function ) ) {
    // Closures are currently implemented as objects.
    $function = array( $function, '' );
  } else {
    $function = (array) $function;
  }

  if ( is_object( $function[0] ) ) {
    // Object class calling.
    return spl_object_hash( $function[0] ) . $function[1];
  } elseif ( is_string( $function[0] ) ) {
    // Static calling.
    return $function[0] . '::' . $function[1];
  }
}
 

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