Lulzsec

$(document).ready(function(){
    $(".matchedit").on('input', function postinput(){
        var matchvalue = $(this).val(); // this.value
        $.ajax({ 
            url: 'matchedit-data.php',
            data: { matchvalue: matchvalue },
            type: 'post'
        }).done(function(responseData) {
            // подгружаете контент (responseData) в HTML
        }).fail(function() {
            console.log('Failed');
        });
    });
});

function toHtml(array $content) {
    $html = '';

    foreach ($content as $row) {
       if (is_string($row)) {
            $html .= $row;

            continue;
        }

        $attrs = '';
        if (isset($row['attrs'])) {
            foreach ($row['attrs'] as $name => $value) {
                if ($row['tag'] === 'img') {
                    $value = '//telegra.ph' . $value;
                }
                $attrs .= sprintf(' %s="%s"', $name, $value);
            }
        }

        $children = '';
        if (isset($row['children'])) {
            $children .= toHtml($row['children']);
        }

        $html .= sprintf('<%s%s>%s</%s>', $row['tag'], $attrs, $children, $row['tag']);
    }

    return $html;
}

$content = json_decode(
    file_get_contents('https://api.telegra.ph/getPage/Vozmozhnosti-Telegram-03-30?return_content=true'), 
    true
);

echo toHtml($content['result']['content']);

$merged = [];

foreach ($a1 as $key = > $value) {
  $merged[] = [$value, $a2[$key]];
}

var_dump($merged);

SELECT
  a.price, 
  a.count,
  c.name
FROM
  a
  LEFT JOIN b ON a.id_order = b.id_order
  LEFT JOIN c ON b.id_product = c.id_product