text manipulation

nightowl

I am trying to build a function which would insert a couple of lines just after the <body bla bla bla> tag of a couple of html-docs.

I figured that I first needed to find out where the <body bla bla bla> tag ends, copy that to a string, add the code, add the rest of the original file.

Problem is : how do I find where the <body> tag ends?

Not only do I need to localise the > which comes after the <body ... >, I first need to find exactly where the <body begins. has anybody an idea / done this before ?

(I may be wrong but I was looking for a function which would return the charpos of the first occurence of a needle-string. if you have an other idea, it is certainly welcome)

nightowl

never mind, I have found a solution and will post it here in a couple of minutes.

nightowl

Mind that this is a solution which works for me. It takes a html-file, inserts a couple of lines of code after the body tag and saves it as the same file but with the .php extension. It might be usefull for you, it might be useless. Let me know if you have any remarks...

I didn't mind about making it really re-useable. If anybody knows how it would be possible to ameliorate the code, feel free to let me know to. I'm always eager to learn!

FUNCTION insert_code($file) {

// inserts the code 
// open the file

$filechunks = explode(".", $file);
$t=0;
while ($t < count($filechunks)-1) {
    $fileprefix .= $filechunks[$t] . ".";
    $t++;
}

//echo "count:" . count($filechunks) . "<br>file:$file<br>fileprefix:$fileprefix";
//exit;

$filesuffix = $filechunks[count($filechunks)-1];
if ($filesuffix <> "html") {
    return false;
} // do not proces this file

$fp = fopen($file, "r");

$filecontent = fread($fp, filesize($file));

fclose($fp);

$searchstring = "<body";
$code = "YOUR CODE HERE";


// find first occurence
$position = strpos($filecontent, $searchstring);

if ($pos === false) { // note: three equal signs
    // not found...
    echo "Not found";
}

$endstringposition = strpos($filecontent, ">", $position) + 1;

$first_part = substr($filecontent, 0, $endstringposition);
$last_part = substr($filecontent, $endstringposition);

$new_content = $first_part . $code . $last_part;

$new_fp = fopen($fileprefix . "php", "w");
fwrite($new_fp, $new_content);
fclose($new_fp);

}