different excerpt in php

Question

Hi how to excerpt this code using php ?

It's the wordpress content . but there is not this way in wordpress

From

<div class='first'>first</div>
<div class='second'>second</div>
<div class='first'>first</div>
<div class='second'>second</div>
<div class='first'>first</div>
<div class='second'>second</div>
.
.
.

To

<div class='first'>first</div>
<div class='second'>second</div>

What you're asking about is not really clear. How this divs are generated? Where do they come from? And as rnevius pointed out, your HTML is invalid - you're missing the closing `>` for all your `` tags. — vard, Aug 19 '15 at 13:40

score 2 · Answer 1 · answered Aug 19 '15 at 14:27

2

you can try this using preg_replace_callback:

//if html is retrieved in a variable like $html, then
$html = "<div class='first'>first</div>
<div class='second'>second</div>
<div class='first'>first</div>
<div class='second'>second</div>
<div class='first'>first</div>
<div class='second'>second</div>";


$validate = array('first'=>true,'second'=>true);
$response = trim(preg_replace_callback('/<div\s?.*\/div>/',function($match)use(&$validate){
    reset($validate);$key = key($validate);
    if(strstr($match[0],$key) != false && $validate[$key] == true){
        $validate[$key] = false;
        return $match[0];
    }
    next($validate);$key = key($validate);
    if(strstr($match[0],$key) != false && $validate[$key] == true){
        $validate[$key] = false;
        return $match[0];
    }
},$html));
var_dump($response);

answered Aug 19 '15 at 14:27

miglio

2,048
10
23

I don't think this regex should work, if you want to match all the div's content you can use `/
(.*?)<\/div>/`. See https://regex101.com/r/cX4kS8/1
– vard Aug 19 '15 at 14:34
@vard have you executed the php? – miglio Aug 19 '15 at 14:36
@vard preg_replace_callback get a loop of matches from pattern. – miglio Aug 19 '15 at 14:38
Just did, it indeed work. My bad, I got confused by the fact that the regex seemed to match the class name + the content. – vard Aug 19 '15 at 14:42

score 0 · Answer 2 · edited May 23 '17 at 12:06

You could hide the div after the second one with the following css:

div.first, div.second {
    display: none;
}
div.first:first-child,
div.second:first-child {
    display: block;
}

To remove completely the divs from the markup in PHP you should need regex, but parsing HTML in a regex can lead to terrible results.

If you really need to go in that way, you should better consider to store your div's content in different fields.

different excerpt in php

2 Answers2