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Description

Marks a constructor as deprecated and informs when it has been used.

Similar to _deprecated_function(), but with different strings. Used to remove PHP4 style constructors. The current behavior is to trigger a user error if WP_DEBUG is true. This function is to be used in every PHP4 style constructor method that is deprecated.

Usage

_deprecated_constructor( $class, $version, $parent_class );

Parameters

$class

( string ) required – The class containing the deprecated constructor.

$version

( string ) required – The version of WordPress that deprecated the function.

$parent_class

( string ) optional – Optional. The parent class calling the deprecated constructor. Default empty string.

Returns

void

Source

File name: wordpress/wp-includes/functions.php
Lines: 1 to 46 of 46

function _deprecated_constructor( $class, $version, $parent_class = '' ) {

  
/**
 * Fires when a deprecated constructor is called.
 *
 * @since 4.3.0
 * @since 4.5.0 Added the `$parent_class` parameter.
 *
 * @param string $class        The class containing the deprecated constructor.
 * @param string $version      The version of WordPress that deprecated the function.
 * @param string $parent_class The parent class calling the deprecated constructor.
 */
  do_action( 'deprecated_constructor_run', $class, $version, $parent_class );

  
/**
 * Filters whether to trigger an error for deprecated functions.
 *
 * `WP_DEBUG` must be true in addition to the filter evaluating to true.
 *
 * @since 4.3.0
 *
 * @param bool $trigger Whether to trigger the error for deprecated functions. Default true.
 */
  if ( WP_DEBUG && apply_filters( 'deprecated_constructor_trigger_error', true ) ) {
    if ( function_exists( '__' ) ) {
      if ( ! empty( $parent_class ) ) {
        /* translators: 1: PHP class name, 2: PHP parent class name, 3: version number, 4: __construct() method */
        trigger_error( sprintf( __( 'The called constructor method for %1$s in %2$s is <strong>deprecated</strong> since version %3$s! Use %4$s instead.' ),
          $class, $parent_class, $version, '<pre>__construct()</pre>' ) );
      } else {
        /* translators: 1: PHP class name, 2: version number, 3: __construct() method */
        trigger_error( sprintf( __( 'The called constructor method for %1$s is <strong>deprecated</strong> since version %2$s! Use %3$s instead.' ),
          $class, $version, '<pre>__construct()</pre>' ) );
      }
    } else {
      if ( ! empty( $parent_class ) ) {
        trigger_error( sprintf( 'The called constructor method for %1$s in %2$s is <strong>deprecated</strong> since version %3$s! Use %4$s instead.',
          $class, $parent_class, $version, '<pre>__construct()</pre>' ) );
      } else {
        trigger_error( sprintf( 'The called constructor method for %1$s is <strong>deprecated</strong> since version %2$s! Use %3$s instead.',
          $class, $version, '<pre>__construct()</pre>' ) );
      }
    }
  }

}
 

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