如何在OpenCart的任何页面上显示小计? [英] How can I display the SubTotal on OpenCart on any page?

问题描述

目前我所知道的唯一的全局PHP命令是:

Currently the only global PHP command I know is:

<?=$text_items?>

这吐口水:

1 item(s) - £318.75

我想获取318.75值，因此在我尝试进行替换时，它无法正常运行:

I want to get the 318.75 value so at the moment I am trying a replace but it is not working all smoothly:

$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);

推荐答案

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

• html_entity_decode将£更改为£
• end(explode('£'在'£'字符后给您字符串
• 最终floatval正在评估要浮动的字符串.
• @绕过了E_STRICT错误，该错误是由于在end()函数中传递常量所致.
• 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.

工作示例

第二个解决方案是Regexp:

Second solution is Regexp:

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

工作示例

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