Joomla 3. Set first image of article as intro image [duplicate] - php

Question

This question already has answers here:
Matching SRC attribute of IMG tag using preg_match
(6 answers)
Closed 3 years ago.
7moHi,
I have joomla 3 and I want set the first image of article as intro image in category blog override.
I have a plugin that grab first image of article and set it in og image metatag. I think that we can use this function for my question.
This is the code of plugin
// Image
$pictures = '';
if (isset($row->images)) {
//$pictures = json_decode($row->images);
$pictures = (is_string($row->images) ? json_decode($row->images) : $row->images);
}
$imgSet = 0;
if ($this->params->get('image'.$suffix, '') != '' && $parameterImage == 1) {
$this->renderTag('og:image', $this->setImage($this->params->get('image'.$suffix, '')), $type);
$imgSet = 1;
} else if ($thisImg != ''){
$this->renderTag('og:image', $this->setImage($thisImg), $type);
$imgSet = 1;
} else if (isset($pictures->{'image_intro'}) && $pictures->{'image_intro'} != '') {
$this->renderTag('og:image', $this->setImage($pictures->{'image_intro'}), $type);
$imgSet = 1;
} else if (isset($pictures->{'image_fulltext'}) && $pictures->{'image_fulltext'} != '') {
$this->renderTag('og:image', $this->setImage($pictures->{'image_fulltext'}), $type);
$imgSet = 1;
} else {
// Try to find image in article
$fulltext = '';
if (isset($row->fulltext) && $row->fulltext != '') {
$fulltext = $row->fulltext;
}
$introtext = '';
if (isset($row->introtext) && $row->introtext != '') {
$introtext = $row->introtext;
}
$content = $introtext . $fulltext;
preg_match('/< *img[^>]*src *= *["\']?([^"\']*)/i', $content, $src);
if (isset($src[1]) && $src[1] != '') {
$this->renderTag('og:image', $this->setImage($src[1]), $type);
//$this->renderTag('og:image', JURI::base(false).$src[1], $type);
$imgSet = 1;
}
// Try to find image in images/phocaopengraph folder
if ($imgSet == 0) {
if (isset($row->id) && (int)$row->id > 0) {
jimport( 'joomla.filesystem.file' );
$imgPath = '';
$path = JPATH_ROOT . '/images/phocaopengraph/';
if (JFile::exists($path . '/' . (int)$row->id.'.jpg')) {
$imgPath = 'images/phocaopengraph/'.(int)$row->id.'.jpg';
} else if (JFile::exists($path . '/' . (int)$row->id.'.png')) {
$imgPath = 'images/phocaopengraph/'.(int)$row->id.'.png';
} else if (JFile::exists($path . '/' . (int)$row->id.'.gif')) {
$imgPath = 'images/phocaopengraph/'.(int)$row->id.'.gif';
}
if ($imgPath != '') {
$this->renderTag('og:image', $this->setImage($imgPath), $type);
$imgSet = 1;
}
}
}
}
// If still image not set and parameter Image is set as last, then try to add the parameter image
if ($imgSet == 0 && $this->params->get('image'.$suffix, '') != '' && $parameterImage == 0) {
$this->renderTag('og:image', $this->setImage($this->params->get('image'.$suffix, '')), $type);
}
// END IMAGE
And I want insert result in my override page, in this point
<div class="image-intro">
<?php echo JLayoutHelper::render('joomla.content.intro_image', $this->item); ?>
<div>
But I can't modify the code for my purpose.
In override eof template I have find also $this->item->event->beforeDisolayContent;
That think show full article.
Can I grab first image of article and insert in intro text?

Answer 1

$texthtml=$this->item->text;
preg_match('/<img.+src=[\'"](?P<src>.+?)[\'"].*>/i', $texthtml, $image);
$imgkk=$image['src'];
echo '<img src="' . $imgkk. ' ">'
?>
I've solved!