Condor

function generateFaqSchema($postId) {
    $repeater = get_post_meta($postId, 'faqshema', true);
    $count = count($repeater);

    $jsonLd = [
        "@context" => "https://schema.org",
        "@type" => "FAQPage",
        "mainEntity" => []
    ];

    foreach ($repeater as $item) {
        $question = $item['question'];
        $answer = $item['answer'];

        $jsonLd['mainEntity'][] = [
            "@type" => "Question",
            "name" => $question,
            "acceptedAnswer" => [
                "@type" => "Answer",
                "text" => $answer
            ]
        ];

        $count--;
        if ($count > 0) {
            $jsonLd['mainEntity'][] = ',';
        }
    }

   return  '
    <script type="application/ld+json">
    ' . json_encode($jsonLd) . '
    </script>
    ';
}