wikimedia/mediawiki-extensions-Translate

<?php
declare( strict_types = 1 );

namespace MediaWiki\Extension\Translate\Utilities;

/**
 * Create unique placeholders that can be used when parsing (wiki)text.
 * @author Niklas Laxström
 * @license GPL-2.0-or-later
 * @since 2020.07
 */
class ParsingPlaceholderFactory {
    /** @var int */
    private $i = 0;

    /** Return value is guaranteed to only contain [a-zA-Z0-9\x7f] */
    public function make(): string {
        return "\x7fUNIQ" .
            dechex( mt_rand( 0, 0x7fffffff ) ) .
            dechex( mt_rand( 0, 0x7fffffff ) ) .
            '-' .
            $this->i++;
    }
}