php - 如何在任何页面上显示 OpenCart 上的 SubTotal？

Question

目前我知道的唯一全局 PHP 命令是：

<?=$text_items?>

这吐了：

1 item(s) - £318.75

我想获得318.75价值，所以目前我正在尝试替换，但它工作并不顺利：

$short = $text_items;
$short = str_replace("£", "", $short);
$short = str_replace("£", "", $short);
$short = str_replace("-", "", $short);
$short = str_replace("–", "", $short);
$short = str_replace(" ", "", $short);
$short = str_replace("-", "", $short);
$short = str_replace("ITEMS", "", $short);
$short = str_replace("(", "", $short);
$short = str_replace(")", "", $short);
$short = str_replace("item(s)", "", $short);
$short = str_replace("ITEM", "", $short);

Answer 1

$total = @floatval(end(explode('£', html_entity_decode($text_items))));

• html_entity_decode changes £ to £
• end(explode('£' is giving you string after '£' character
• finally floatval is valuating string to float.
• @ is bypassing E_STRICT error which occurs to passing constant in end() function.

Working example

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Second solution is Regexp:

preg_match_all('!\d+(?:\.\d+)?!', $text_items, $result);
echo $result[1];

Working example