[SOLVED] Change all "img src" to "https" after "require"

[webent]

Was wondering if anyone could point me in the right direction on how I would go about changing the calling location of images to their secure location after the page in which contains the images is called from a "require"?

 

Here is my require...

<? require $url . "/includes/header.inc"; ?>

 

Now is there a way to parse that include file before it is output, to change any "<img src="http://" to "<img src="https://"?

[MasterACE14]

<?php
$protocol = "http://";
if($protocol == "http://")
{
  str_replace($protocol,"https://");
}

?>

[webent]

Thank you MasterACE14 for your response... I know how to use str_replace() though, my problem is, parsing the include file before it is output...

[MasterACE14]

not sure what you mean. But maybe your after file_get_contents(); ?

[webent]

Yeah, that might work, I'm not sure, I'll try it...

[webent]

Ok, it worked, thanks MasterACE14...

$completeFilePath = $preurl . "/includes/header.inc";        
$handle = file_get_contents($completeFilePath);
$search = array("<img src=\"");
$replace = array("<img src=\"" . $otherurl . "/");
$fields = str_replace($search,$replace,$handle);
echo $fields;