Limited content breaks HTML layout in php

Question

Limited content breaks HTML layout in php

I'm having problems when I tried to limit the content description, I tried like this:

<?php 
$intDescLt = 400;
$content   = $arrContentList[$arr->nid]['description'];
$excerpt   = substr($content, 0, $intDescLt);
?>
<div class="three16 DetailsDiv">
    <?php echo $excerpt; ?>
<div>

In the description field, if I just put content without html tags, it works fine, but if I put the content in html tags and if the limit reaches the end before the closing tag, he applied this tab style to all the content after that.

So I need to know how to solve this problem.

Ex. Problem:

$string = "<p><b>Lorem Ipsum</b> is simply dummy text of the printing and typesetting industry.</p>";
echo substr($string, 0, 15);

Html output in console: Lorem Ipsu And now he applied the tag to the rest of the content on the page.

Expected console output: Lorem Ipsu

+1

string html php

Toretto Mar 25 '15 at 13:51

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2 answers

msfoster · Answer 1 · 2015-03-25T14:51:14+0000

, :

$string = "<p><b>Lorem Ipsum</b> is simply dummy text of the printing and typesetting industry.</p>";
$substring = substr((addslashes($string)),0,15);

DOMDocument, :

$doc = new DOMDocument();
$doc->loadHTML($substring);
$yourText = $doc->saveHTML($doc->getElementsByTagName('*')->item(2));
//item(0) = html
//item(1) = body
echo htmlspecialchars($yourText);
//<p><b>Lorem Ips</b></p>

hakre · Answer 2 · 2015-03-28T22:33:44+0000

PHP HTML, , .

$string = "<p><b>Lorem Ipsum</b> is simply dummy text of the printing and typesetting industry.</p>";

, HTML. , . HTML. .

DOMDocument, HTML, . $string <body>, :

$doc    = new DOMDocument();
$result = $doc->loadHTML($string);
if (!$result) {
    throw new InvalidArgumentException('String could not be parsed as HTML fragment');
}
$body = $doc->getElementsByTagName('body')->item(0);

. xpath:

$xp    = new DOMXPath($doc);
$nodes = $xp->query('./descendant::node()', $body);

. , . , split :

$length = 0;
foreach ($nodes as $node) {
    if (!$node instanceof DOMText) {
        continue;
    }
    $left = max(0, 15 - $length);
    if ($left) {
        if ($node->length > $left) {
            $node->splitText($left);
            $node->nextSibling->parentNode->removeChild($node->nextSibling);
        }
        $length += $node->length;
    } else {
        $node->parentNode->removeChild($node);
    }
}

HTML body , :

$buffer = '';
foreach ($body->childNodes as $node) {
    $buffer .= $doc->saveHTML($node);
}

echo $buffer;

:

<p><b>Lorem Ipsum</b> is </p>

node , , . . , , node -removal .

, , substr(), HTML.

: HTML ( Tidy), HTML (, , iframe), . DOM .

(-):

<?php
/**
 * Limited content break the HTML layout in php
 *
 * @link http://stackoverflow.com/a/29323396/367456
 * @author hakre <http://hakre.wordpress.com>
 */

$string = "<p><b>Lorem Ipsum</b> is simply dummy text of the printing and typesetting industry.</p>";
echo substr($string, 0, 15), "\n";

$doc    = new DOMDocument();
$result = $doc->loadHTML($string);
if (!$result) {
    throw new InvalidArgumentException('String could not be parsed as HTML fragment');
}
$body = $doc->getElementsByTagName('body')->item(0);

$xp    = new DOMXPath($doc);
$nodes = $xp->query('./descendant::node()', $body);

$length = 0;
foreach ($nodes as $node) {
    if (!$node instanceof DOMText) {
        continue;
    }
    $left = max(0, 15 - $length);
    if ($left) {
        if ($node->length > $left) {
            $node->splitText($left);
            $node->nextSibling->parentNode->removeChild($node->nextSibling);
        }
        $length += $node->length;
    } else {
        $node->parentNode->removeChild($node);
    }
}

$buffer = '';
foreach ($body->childNodes as $node) {
    $buffer .= $doc->saveHTML($node);
}

echo $buffer;

Limited content breaks HTML layout in php

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