In PHP, I'm getting an API call response like this and I save this in a string variable $var with the value given below.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script type="text/javascript" src="../js/jquery-1.4.2.min.js"></script>
<title>some title</title>
</head>
<body>
<img src="../logo.png" />
<p>My Page</p>
</body>
why I'm not able to do the following?
str_replace("My Page", "My HTML page", $var);
also
str_replace("../", "http://example.com/", $var);
1) Can I perform simple string operations on a string that contain html?
2) How can I change the src attribute in script tag in head.
