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Accepted
Miguel
Asked: 2022-01-26 10:16:47 +0800 CST 2022-01-26 10:16:47 +0800 CST

Something is wrong with this Laravel helper

  • 772

I have a news page where I pull all the information from the Database. I print the title with a {{ $item->titulo }}without any problem. The problem comes to me when I put the description, when using textareathe TinyMCE in the database, it saves it in the following way, <p>La idea de <strong>High As</strong> naci&oacute; donde ....so to show it on the page I do like this:

@php echo  Str::limit($item->cuerpo, 150) @endphp

In this way it does not remove them <p>and formats the text well. But the problem comes to me that in those 150 characters if it catches a <b>in the middle, it destroys the following iterations of the news and puts everything in <b>.

Any suggestion??

php

1 Answers

  1. Best Answer

    Having the PHP libxml extension installed, it would be easiest to use loadHTML()the DOMDocument. This auto parses malformed HTML and a subsequent call to saveHTML()will generate valid HTML.

    @php 
    $doc = new DOMDocument();
    $doc->loadHTML(utf8_decode(Str::limit($item->cuerpo, 150)));
    $string = $doc->saveHTML();

    echo $string;
@endphp

{!!$string!!}

    I leave you a snnipet of laravel playground:

    https://laravelplayground.com/#/snippets/dfb13f3a-5378-4bc6-82e8-bccd266e3b7e

    Ref: Document Object Model

    If you can't install the extension libxmlfor some reason, you can call regex. For example:

    @php
function closetags($html) {
    preg_match_all('#<([a-z]+)(?: .*)?(?<![/|/ ])>#iU', $html, $result);
    $openedtags = $result[1];
    preg_match_all('#</([a-z]+)>#iU', $html, $result);

    $closedtags = $result[1];
    $len_opened = count($openedtags);

    if (count($closedtags) == $len_opened) {
        return $html;
    }
    $openedtags = array_reverse($openedtags);
    for ($i=0; $i < $len_opened; $i++) {
        if (!in_array($openedtags[$i], $closedtags)) {
            $html .= '</'.$openedtags[$i].'>';
        } else {
            unset($closedtags[array_search($openedtags[$i], $closedtags)]);
        }
    }
    return $html;
}

echo closetags(Str::limit($item->cuerpo, 150));
@endphp

{!!$string!!}

    Snnipet from laravel playground:

    https://laravelplayground.com/#/snippets/3aee73af-1ad7-4651-a121-7c7ece77c5dd

    Finally, to not have all that ugly code in your view, you can create a custom helper

    To start you must create a file in a project directory, you can use for example app:

    // app/helpers.php

<?php
function close_tags($html)
{
    preg_match_all('#<([a-z]+)(?: .*)?(?<![/|/ ])>#iU', $html, $result);
    $openedtags = $result[1];
    preg_match_all('#</([a-z]+)>#iU', $html, $result);

    $closedtags = $result[1];
    $len_opened = count($openedtags);

    if (count($closedtags) == $len_opened) {
        return $html;
    }
    $openedtags = array_reverse($openedtags);
    for ($i=0; $i < $len_opened; $i++) {
        if (!in_array($openedtags[$i], $closedtags)) {
            $html .= '</'.$openedtags[$i].'>';
        } else {
            unset($closedtags[array_search($openedtags[$i], $closedtags)]);
        }
    }
    return $html;
}

    Then you must modify the file composer.jsonto add a key filesunder the key :autoload:

    "autoload": {
    "files": [
        "app/helpers.php"
    ],
    //... 
 },

    Finally you must execute:

    composer dump-autoload

    Your helper will be added and you can use it anywhere like

    {!!close_tags(Str::limit($item->cuerpo, 150))!!}
    • 3