read content of meta tag

[ravi_aptech]

dear friends,

first of all i want to read content of meta tag . then

i want to change it without affecting other part of html file.

suppose <meta content="hello" description ="how are you">

then
i want hello

and how are you individually in text area.

finally i want to replace it with my data.

so how can it is possible

😕

[ravi_aptech]

friends,

as per my requirement i want to
read value of content and description property of meta tag.

and after read it i want to change it.

so ,what is the solution???

ravi

[spin0us]

Perhaps you have to use regular expression ...

[Mordecai]

As for reading, try something like this:

$contents = ereg_replace(">","\n",$contents);
$lines = split("\n",$contents);
foreach ($lines as $line) {
  $line = trim($line);
  $spaced = split(" ",$line,2);
  $tag = $spaced[0];
  $params = split(" ",$spaced[1]);
  switch ($tag) {
    case "<meta":
      for ($i=0;$i<=count($params);$i++) {
        $param_name = split("=",$params[$i]);
        $value = ereg_replace("#|\"|>","",$param_name[1]);
        switch ($param_name[0]) {
          case "content":
//do what if it's reading the content part
            break;
          case "description":
//do what if it's reading the description
            break;
          break;
      }
    }
  }
}

This is just a little alteration of an HTML parser I wrote. You might be able to optimize that to run better with only the meta tag. Feel free to change it so you can use only whatever you need.

When rewriting, you'll have to use replacements. Try looking up ereg_replace, str_replace, preg_replace. You can use the values gathered from the code I gave to rewrite it, as well.