how to use the replace function to replace consecutive DIVs with IDs

I'm trying to understand where I went wrong I need to insert by replacing <DIV with <DIV ID="div0", <DIV ID="div1", <DIV ID="div2", <DIV ID="div3",...

$i=0;
function divCount(){
$i = $i + 1;
$iString = $i + "";
return "div".$iString;
}
$strResult = str_replace("<DIV STYLE=", "<DIV ID='".divCount()."' STYLE=", $result);
echo $strResult;

PHP:

This is what's happening so far:

<DIV ID='div1' STYLE="POSITION:ABSOLUTE;TOP:69;LEFT:177" CLASS="APFont00000">...</DIV>
<DIV ID='div1' STYLE="POSITION:ABSOLUTE;TOP:88;LEFT:290" CLASS="APFont00001">...</DIV>
<DIV ID='div1' STYLE="POSITION:ABSOLUTE;TOP:103;LEFT:231" CLASS="APFont00001">...</DIV>
<DIV ID='div1' STYLE="POSITION:ABSOLUTE;TOP:154;LEFT:71" CLASS="APFont00002">...</DIV>

Code (markup):

 

You need to loop through the html so that each div gets it's own id.

There may be a better way to do this, but this seemed reasonable off the top of my head.

$i=0;
$finalString = '';

$newString = explode("\n",$html_file);

foreach($newString as $line)
{

if(strpos($line,'<DIV STYLE=') !== false)
{

$line = str_replace("<DIV STYLE=", "<DIV ID='div".$i."' STYLE=", $line);
$i++;
}

$finalString .= $line."\n";

}

PHP:

 

Then you have to echo it right? But the source shows blank.

$i=1;
$finalString = '';
$newString = explode("\n",$html_file);
foreach($newString as $result)
{
if(strpos($result,'<DIV STYLE=') !== false)
{
$result = str_replace("<DIV STYLE=", "<DIV ID='".$i."' STYLE=", $result);
$i++;
}
$finalString .= $result."\n";
}
echo $finalString;

PHP:

 

Try changing $html_file back to $result. I changed the name by accident.

$newString = explode("\n",$result);

PHP:

 

wow you did it! Thanks!