<?php 
/** 
 * Conditionally declares a `readonly()` function, which was renamed 
 * to `wp_readonly()` in WordPress 5.9.0. 
 * 
 * In order to avoid PHP parser errors, this function was extracted 
 * to this separate file and is only included conditionally on PHP < 8.1. 
 * 
 * Including this file on PHP >= 8.1 results in a fatal error. 
 * 
 * @package WordPress 
 * @since 5.9.0 
 */ 
 
/** 
 * Outputs the HTML readonly attribute. 
 * 
 * Compares the first two arguments and if identical marks as readonly. 
 * 
 * This function is deprecated, and cannot be used on PHP >= 8.1. 
 * 
 * @since 4.9.0 
 * @deprecated 5.9.0 Use wp_readonly() introduced in 5.9.0. 
 * 
 * @see wp_readonly() 
 * 
 * @param mixed $readonly_value One of the values to compare. 
 * @param mixed $current        Optional. The other value to compare if not just true. 
 *                              Default true. 
 * @param bool  $display        Optional. Whether to echo or just return the string. 
 *                              Default true. 
 * @return string HTML attribute or empty string. 
 */ 
function readonly( $readonly_value, $current = true, $display = true ) { 
    _deprecated_function( __FUNCTION__, '5.9.0', 'wp_readonly()' ); 
    return wp_readonly( $readonly_value, $current, $display ); 
} 
 
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