Get a html tag and store in a php variable

PHP
1

Hi I use the file_get_content to grab a webpage (url) and I want to
get the content in some specific tags. <h1> and <h2>

I have read DOM-document is the best way to do this but I’m just not sure
how to use it and most I find on google is for XML… which won’t help me I guess.

So how do I take the content in the <h1> tag from a webpage and store it in a php variable?

2

Whenever I need to dig through HTML in PHP I use this package:

It makes it easy to load html from a file, url or string, then traverse it using CSS-like selectors. It comes with manual pages and examples, so it’s all pretty simple.

3

i wrote a function for u just now… this will help u get <h1> or <h2> tag
this function will return an array containing the tags content


<?php
$txt = file_get_contents($url);

$arr = get_tag($txt, "h1");

print_r($arr);

function get_tag($txt,$tag){
	$offset = 0;
	$start_tag = "<".$tag;
	$end_tag = "</".$tag.">";
	$arr = array();
	do{
	$pos = strpos($txt,$start_tag,$offset);	
	if($pos){
		$str_pos = strpos($txt,">",$pos)+1;
		$end_pos = strpos($txt,$end_tag,$str_pos);	
		$len = $end_pos - $str_pos;
		$f_text = substr($txt,$str_pos,$len);
		
		$arr[] = $f_text;
		$offset = $end_pos;
	}
	}while($pos);
	return $arr;

}
?>

ps: this function will only work for non nested tag… a tag which contains the same tag as child within it will give u wrong result… meaning div tag like tag which can contain a child div tag will give u wrong answer…

if u also need that sort of function which works on nested tag, let me know…
i will try to write that for u…
cheers… :smiley: