[SOLVED] str_replace only inside of certain HTML.

[atticus]

Hi all, thanks in advance...

 

Here is my issue...

 

I want to parse an HTML page and replace a title that only occurs inside of an <h1> tag. however, I will not always not the exact format.

 

It may be <h1><a....

 

or <h1 class="...

 

The HTML for the entire page is delivered to the function in one variable:

 

$buffer

 

<?php
function callback($buffer) {
//I need to search $buffer, find and replace the title that is in between <h1></h1> and return the entire $buffer...the title appears several places in the page, but only the one instance my be changed. 

$newphrase = str_replace("A title", "$title", $buffer);


  return $buffer;
}

[premiso]

Is this the only <h1> tag on the site? If so, this should work:

 

<?php
$string = "Replace this title <h1 class=foo>Title</h1>";
$replaced = preg_replace("~<h1(.+?)?>(.+?)</h1>~s", '<h1$1>test title</h1>', $string);
echo "Original: " . htmlentities($string) . "<br />";
echo "Replaced: " . htmlentities($replaced) . "<br />";
?>

 

This will not keep the "class" if you wanted to keep that. If you do care if that is kept let me know and I will do some revisions.

 

EDIT:

Changed it so it would keep any attribute inside the <h1> tag. This should work for what you need, given that there is only 1 <h1> tag on the site

 

EDIT:EDIT:

Changed it to work with or without attributes in the tag.

[atticus]

thanks man...you rock...I will give it a try

[atticus]

worked like a charm...thanks

[premiso]

thanks man...you rock...I will give it a try

 

One side note to the above. If you want it to just replace the first one, preg_replace's 4th parameter is a limit, change that to 1 and it will only do the first occurrence. As it is now, it will do all h1's inside the document.