something wrong with replace string? [closed]

问题

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.

Closed 6 years ago.

Can anyone help me with this:

<?php
$remove = $_GET['hwid'];
str_replace($_GET['hwid']."<br />","",$str);
?>

It doesnt even delete the text...

I Know i dont have it set to the html file i have thats because i don't know how to with this string...

回答1:

Let's say you have this as you retrieved text (whether from html or any other form):

$str="THE HTML FILE:

Test

Test1

Test2

Test3";

this function will remove "Test2" from the string:

$newstr=str_replace("Test2","",$str);

for more information of the function take a look at here

Just one more thing, if you have <br> after each line in your example, you need to do the same for those too.

来源：https://stackoverflow.com/questions/16473300/something-wrong-with-replace-string