Check tag & get the value inside tag using PHP

Question

I've been confused. So here's my problem, I have a text like this :

<ORGANIZATION>Head of Pekalongan Regency</ORGANIZATION>, Dra. Hj.. Siti Qomariyah , MA and her staff were greeted by <ORGANIZATION>Rector of IPB</ORGANIZATION> Prof. Dr. Ir. H. Herry Suhardiyanto , M.Sc. and <ORGANIZATION>officials of IPB</ORGANIZATION> in the guest room.

I'm try to get the value inside <ORGANIZATION> tag using my code :

function get_text_between_tags($string, $tagname) {
    $pattern = "/<$tagname ?.*>(.*)<\/$tagname>/";
    preg_match($pattern, $string, $matches);
    if(!empty($matches[1]))
        return $matches[1];
}

But this code only retrieve one value from the last tag (officials of IPB) when there are 3 tags <ORGANIZATION>.

Now, I don't have idea to modify this code to get all value inside tag without duplication. So please help, thanks in advance. :D

http://stackoverflow.com/questions/1732348/regex-match-open-tags-except-xhtml-self-contained-tags — Matthew Graves, May 09 '13 at 03:58
@MatthewGraves I don't get it that article (my english bad). Is there any hope? — andrefadila, May 09 '13 at 04:03

score 4 · Accepted Answer · edited May 23 '17 at 12:13

preg_match will only return the first match, and your current code will fail if:

The tag is not uppercased in the same way
The tag's contents are on more than one line
There are more than one of the tag on the same line.

Instead, try this:

function get_text_between_tags($string, $tagname) {
    $pattern = "/<$tagname\b[^>]*>(.*?)<\/$tagname>/is";
    preg_match_all($pattern, $string, $matches);
    if(!empty($matches[1]))
        return $matches[1];
    return array();
}

This is acceptable use of regexes for parsing, because it is a clearly-defined case. Note however that it will fail if, for whatever reason, there is a > inside an attribute value of the tag.

If you prefer to avoid the wrath of the pony, try this:

function get_text_between_tags($string, $tagname) {
    $dom = new DOMDocument();
    $dom->loadHTML($string);
    $tags = $dom->getElementsByTagName($tagname);
    $out = array();
    $length = $tags->length;
    for( $i=0; $i<$length; $i++) $out[] = $tags->item($i)->nodeValue;
    return $out;
}

I've tried, but still don't work. It's return an empty array. :) — andrefadila, May 09 '13 at 04:34
I'm sorry before, I've tried the second code. The first code is work. Thanks master. :) — andrefadila, May 09 '13 at 04:40

score -1 · Answer 2 · answered May 09 '13 at 04:01

Did you try the strip_tags() function?

<?php

    $s = "<ORGANIZATION>Head of Pekalongan Regency</ORGANIZATION>, Dra. Hj.. Siti Qomariyah , MA and her staff were greeted by <ORGANIZATION>Rector of IPB</ORGANIZATION> Prof. Dr. Ir. H. Herry Suhardiyanto , M.Sc. and <ORGANIZATION>officials of IPB</ORGANIZATION> in the guest room.";

    $r = strip_tags($s);

    var_dump($r);

?>

demo

Check tag & get the value inside tag using PHP

2 Answers2

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