php - 简单 : How to replace "all between" with php?

Question

这个问题在这里已经有了答案:

How to remove text between tags in php? (6 个回答)

关闭 2年前。

$string = "<tag>i dont know what is here</tag>"
$string = str_replace("???", "<tag></tag>", $string);
echo $string; // <tag></tag>

那么我在寻找什么代码？

Answer 1

一个通用函数:

function replace_between($str, $needle_start, $needle_end, $replacement) {
    $pos = strpos($str, $needle_start);
    $start = $pos === false ? 0 : $pos + strlen($needle_start);

    $pos = strpos($str, $needle_end, $start);
    $end = $pos === false ? strlen($str) : $pos;

    return substr_replace($str, $replacement, $start, $end - $start);
}

DEMO