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Agbonghama Collins' code for image scraper article
<?php
class ZipImages
{
private $folder;
private $url;
private $html;
private $fileName;
private $status;
public function __construct($url)
{
$this->url = $url;
$this->html = file_get_contents($this->url);
$this->setFolder();
}
public function setFolder($folder = "image")
{
if (!file_exists($folder)) {
mkdir($folder);
}
$this->folder = $folder;
}
public function setFileName($name = "zipImages")
{
$this->fileName = $name;
}
public function domCrawler()
{
$crawler = new Crawler($this->html);
$result = $crawler
->filterXpath('//img')
->extract(array('src'));
foreach ($result as $image) {
$path = $this->folder . "/" . basename($image);
$file = file_get_contents($image);
$insert = file_put_contents($path, $file);
if (!$insert) {
echo "fail to insert file to folder";
exit;
}
}
}
public function createZip()
{
$folderFiles = scandir($this->folder);
if (!$folderFiles) {
echo "fail to scan folder";
exit;
}
$fileArray = array();
foreach ($folderFiles as $file) {
if (($file != ".")
&& ($file != "..")
) {
$fileArray[] = $this->folder . "/" . $file;
}
}
if (create_zip($fileArray, $this->fileName . '.zip')) {
$this->status = <<<HTML
File successfully archived.
<a href="$this->fileName.zip">Download it now</a>
HTML;
} else {
$this->status = "An error occurred";
}
}
public function deleteCreatedFolder()
{
$dp = opendir($this->folder)
or die ('ERROR: Cannot open directory');
while ($file = readdir($dp)) {
if ($file != '.' && $file != '..') {
if (is_file("$this->folder/$file")) {
unlink("$this->folder/$file");
}
}
}
rmdir($this->folder) or die ('could not delete folder');
}
public function getStatus()
{
echo $this->status;
}
public function process()
{
$this->domCrawler();
$this->createZip();
$this->deleteCreatedFolder();
$this->getStatus();
}
}
<?php
function create_zip($files = array(), $destination = '', $overwrite = false)
{
//if the zip file already exists and overwrites is false, return false
if (file_exists($destination) && !$overwrite) {
return false;
}
$valid_files = array();
//if files were passed in...
if (is_array($files)) {
//cycle through each file
foreach ($files as $file) {
//make sure the file exists
if (file_exists($file)) {
$valid_files[] = $file;
}
}
}
//if we have good files...
if (count($valid_files)) {
//create the archive
$zip = new ZipArchive();
if ($zip->open($destination, $overwrite ? ZIPARCHIVE::OVERWRITE : ZIPARCHIVE::CREATE) !== true) {
return false;
}
//add the files
foreach ($valid_files as $file) {
$zip->addFile($file, $file);
}
$zip->close();
//check to make sure the file exists
return file_exists($destination);
} else {
return false;
}
}
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