[eluser]mi6crazyheart[/eluser]
It's a small function which you can use in your Codeigniter's MODEL Class to extract image link (image URL) from a HTML content. After extracting the image URL it extract the image from that URL & crop it as prescribed sizes.
Code:
function extractImageAndCreateThumb($htmlContent,$destinationToSave,$thumbHeight,$thumbWidth,$thumbName='')
{
//--- Set temporary folder path where extract image will be stored----
$tempFolderPathToSaveImg = "./assets/images/temp/";
//-----extract the raw text with only img tag-----
$Content = strip_tags(html_entity_decode($htmlContent),'<img>');
// This will search for the src="" in the $Content variable
$regular_expression = '~src="[^"]*"~';
// WE will grab all the images from the post in an array $allpics using preg_match_all
preg_match_all( $regular_expression, $Content, $allpics );
// Count the number of images found.
$NumberOfPics = count($allpics[0]);
//intialize value of the variable
$newFileName = '';
if($NumberOfPics)
{
for ( $i=0; $i < 1 ; $i++ )
{
$str1=$allpics[0][$i];
$str1=trim($str1);
$len=strlen($str1);
$imgpath=substr_replace(substr($str1,5,$len),"",-1);
}
$originalfileName = basename($imgpath); // Get orignal image file name with extension
$path_parts = pathinfo($imgpath);
$imageEXtension = $path_parts['extension']; // Get image file name extension
if($thumbName)
$newFileName = $thumbName.'.'.$imageEXtension ;
else
$newFileName = $originalfileName ; //Create a new file name by adding BoardID to it
$img = $this->curl->simple_get($imgpath);
if ( ! write_file($tempFolderPathToSaveImg.''.$newFileName, $img))
{
echo 'unable to write the file';
}
$config['image_library'] = 'gd2';
$config['source_image'] = $tempFolderPathToSaveImg.''.$newFileName;
$config['maintain_ratio'] = TRUE;
$config['new_image'] = $destinationToSave ;
$config['width'] = $thumbHeight;
$config['height'] = $thumbWidth;
$this->load->library('image_lib', $config);
if(!$this->image_lib->resize())
{
echo $this->image_lib->display_errors();
}
// Delete the parent image which had stored temporarily
if( ! unlink($tempFolderPathToSaveImg.''.$newFileName) ) // Parent temp image deleted
{
echo "Couldn't delete Parent temp image";
}
}
//----- function return 1 if get any image else return 0----
If($NumberOfPics)
return 1;
else
return 0;
}
Some more details:
http://goo.gl/rUf8
You can download the codes from here also:
http://www.box.net/shared/v3bn28my1x
