带有混合文本和变量的PHP str_replace？

Question

I have a function and within the function I have:

$clean_dir = str_replace("temp_images/".$foldername."/output/", "", $dir);

$foldername value is outside the function.

When I run the above temp_images/xyz/output remains temp_images/xyz/output, but then I replace temp_images/xyz/output with xyz directly instead of $foldername. then it changes.

How can I insert mixed text with a variable in str_replace?

Thanks

Answer 1

I don't recommend using global variables. Pass $foldername as a function parameter instead:

function some_func($foldername) {
    ...
    $clean_dir = str_replace("temp_images/".$foldername."/output/", "", $dir);
    ...
}