I am trying to generate a pdf file via the dompdf library (the displayed values come from a mysql database), and I have an encoding problem. I did a lot of research but without success.
The problem is that at each line break, a "/ n" is displayed.
I tried to use different functions html_entities_decode, nl2br and even str_replace ("/ n", "", $ str), but could not delete it.
The "/ n" is not registered in the database at the specified value. I looked in the source files dompdf and it does not come from there either.
A big thank you in advance for your responses !
CODE
use Barryvdh\DomPDF\Facade as PDF; // Barryvdh use dompdf
// function used
public function downloads($from, $type, $unique_id, $downloads, $dom, $do) {
$data['from'] = $from;
$data['type'] = $type;
$data['unique_id'] = $unique_id;
$data['title'] = 'PDF Generation';
//User Details
$userController = new userController;
$data['logeduser'] = $userController->logeduser();
$userpermissions = $userController->getpermissions();
//Notification Details
$notification = new notificationModel;
$data['notification_list'] = $notification->getAllRemainder();
//PDF Generation
$sales = new salesModel();
$data['offer_sav'] = $sales->getOfferSAVDetails($unique_id);
$data['offer_sav_products'] = $sales->getOfferSAVProductDetails($unique_id);
$data['offer_eg'] = $sales->getOfferSAVDetails($unique_id);
$data['offer_eg_component'] = $sales->getOfferEGComponent($unique_id);
$data['offer_eg_accessory'] = $sales->getOfferEGAccessory($unique_id);
$data['offer_eg_options'] = $sales->getOfferEGOptions($unique_id);
$data['sav_eg_without_sm'] = $sales->getSAVEGWithoutSM($unique_id);
//view()->share($data);
//return view('sales/pdfonly', $data);
$pdf = PDF::loadView('sales/pdfonly', $data);
//$view = view('sales/pdfonly', $data);
//$pdf = PDF::loadHTML($view);
if(!empty($_GET['print']))
return $pdf->stream('pdf_'.$from.'_'.$type.'.pdf', array("Attachment" => 0));
else
return $pdf->download('pdf_'.$from.'_'.$type.'.pdf');
}
// exemple of code output
{!! $eg->sales_offer_note2 !!} // = remarque1 <div>r<br> remarque2</div><div><br></div><div><br></div><div>
€
/*
OUTPUT
remarque1
r/n
emarque2
/n
/n
€
/n
*/
I try an API to get video content. The problem is, the return of the api is binary. How can I get a video file?
When I want to get an image, I just run this code:
$response = curl_exec($ch);
$aa = base64_encode($response);
$data = 'data:image/jpeg;base64,'.$aa;
list($type, $data) = explode(';', $data);
list(, $data) = explode(',', $data);
$data = base64_decode($data);
file_put_contents('image2.jpg', $data);
but I think it doesn't work when I want to convert into video.
I am using the PHP CSS preprocessor CssCrush for the first time and I am needing to implement the csscrush_string() function into my custom assets manager. Previously I was using CssMin but now I need use of the preprocessor.
The following snippet below obviously has a syntax error at $data = csscrush_string( string $string [, array $options ] ); and I do not know how to correct it.
I have also tried: $data = Crush::csscrush_string(); but I get PHP Fatal error: Class 'Crush' not found... even-though Crush is a class.
Using CssCrush (replacing CssMin):
<?php
private function process_resource($file, $type)
{
//...Files are combined and dumped into $data up here
// before running the preprocessor and minifier...
$data = str_replace($keys, $vals, $data);
$css_lib = VENDOR_DIR . "css-crush/css-crush/CssCrush.php";
if ($this->settings[$type]["minify"])
{
require $css_lib;
$data = csscrush_string( string $string [, array $options ] );
$data = trim($data);
}
}
Using CssMin (works):
<?php
$data = str_replace($keys, $vals, $data);
css_lib = VENDOR_DIR . "natxet/CssMin/src/CssMin.php";
if ($this->settings[$type]["minify"])
{
require $css_lib;
$data = CssMin::minify($data);
$data = trim($data);
}
It just guess because I don't know what $data contains but it seems to be string
change
$data = csscrush_string( string $string [, array $options ] );
$data = trim($data);
to
$data = csscrush_string(trim($data));
I've checked source of this function and there is only one option to be passed called 'boilerplate' if you want to pass it then you should invoke function as below
$data = csscrush_string(trim($data), array('boilerplate' => true));
Also consider that this function is within namespace so you should put
use \CssCrush\Crush\csscrush_string; or class function like
$data = \CssCrush\Crush\csscrush_string(trim($data));
My php project is using the reddit JSON api to grab the title of the current page's submission.
Right now I am doing running some code every time the page is loaded and I'm running in to some problems, even though there is no real API limit.
I would like to store the title of the submission locally somehow. Can you recommend the best way to do this? The site is running on appfog. What would you recommend?
This is my current code:
<?php
/* settings */
$url="http://".$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
$reddit_url = 'http://www.reddit.com/api/info.{format}?url='.$url;
$format = 'json'; //use XML if you'd like...JSON FTW!
$title = '';
/* action */
$content = get_url(str_replace('{format}',$format,$reddit_url)); //again, can be xml or json
if($content) {
if($format == 'json') {
$json = json_decode($content,true);
foreach($json['data']['children'] as $child) { // we want all children for this example
$title= $child['data']['title'];
}
}
}
/* output */
/* utility function: go get it! */
function get_url($url) {
$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,1);
$content = curl_exec($ch);
curl_close($ch);
return $content;
}
?>
Thanks!
Introduction
Here is a modified version of your code
$url = "http://stackoverflow.com/";
$loader = new Loader();
$loader->parse($url);
printf("<h4>New List : %d</h4>", count($loader));
printf("<ul>");
foreach ( $loader as $content ) {
printf("<li>%s</li>", $content['title']);
}
printf("</ul>");
Output
New List : 7New podcast from Joel Spolsky and Jeff Atwood. Good site for example code/ Pyhtonstackoverflow.com has clearly the best Web code ever conceived in the history of the Internet and reddit should better start copying it.A reddit-like, OpenID using website for programmersGreat developer site. Get your questions answered and by someone who knows.Stack Overflow launched into publicStack Overflow, a programming Q & A site. & Reddit could learn a lot from their interface!
Simple Demo
The Problem
I see some things you want to achieve here namely
I would like to store the title of the submission locally somehow
Right now I am doing running some code every time the page is loaded
From what i understand you need is a simple cache copy of your data so that you don't have to load the url all the time.
Simple Solution
A simple cache system you can use is memcache ..
Example A
$url = "http://stackoverflow.com/";
// Start cache
$m = new Memcache();
$m->addserver("localhost");
$cache = $m->get(sha1($url));
if ($cache) {
// Use cache copy
$loader = $cache;
printf("<h2>Cache List: %d</h2>", count($loader));
} else {
// Start a new Loader
$loader = new Loader();
$loader->parse($url);
printf("<h2>New List : %d</h2>", count($loader));
$m->set(sha1($url), $loader);
}
// Oupput all listing
printf("<ul>");
foreach ( $loader as $content ) {
printf("<li>%s</li>", $content['title']);
}
printf("</ul>");
Example B
You can use Last Modification Date as the cache key as so that you would only save new copy only if the document is modified
$headers = get_headers(sprintf("http://www.reddit.com/api/info.json?url=%s",$url), true);
$time = strtotime($headers['Date']); // get last modification date
$cache = $m->get($time);
if ($cache) {
$loader = $cache;
}
Since your class implements JsonSerializable you can json encode your result and also store in a Database like MongoDB or MySQL
$data = json_encode($loader);
// Save to DB
Class Used
class Loader implements IteratorAggregate, Countable, JsonSerializable {
private $request = "http://www.reddit.com/api/info.json?url=%s";
private $data = array();
private $total;
function parse($url) {
$content = json_decode($this->getContent(sprintf($this->request, $url)), true);
$this->data = array_map(function ($v) {
return $v['data'];
}, $content['data']['children']);
$this->total = count($this->data);
}
public function getIterator() {
return new ArrayIterator($this->data);
}
public function count() {
return $this->total;
}
public function getType() {
return $this->type;
}
public function jsonSerialize() {
return $this->data;
}
function getContent($url) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 1);
$content = curl_exec($ch);
curl_close($ch);
return $content;
}
}
I'm not sure what your question is exactly but the first thing that pops is the following:
foreach($json['data']['children'] as $child) { // we want all children for this example
$title= $child['data']['title'];
}
Are you sure you want to overwrite $title? In effect, that will only hold the last $child title.
Now, to your question. I assume you're looking for some kind of mechanism to cache the contents of the requested URL so you don't have to re-issue the request every time, am I right? I don't have any experience with appFog, only with orchestra.io but I believe they have the same restrictions regarding writing to files, as in you can only write to temporary files.
My suggestion would be to cache the (processed) response in either:
APC shared memory with a short TTL
temporary files
database
You could use the hash of the URL + arguments as the lookup key, doing this check inside get_url() would mean you wouldn't need to change any other part of your code and it would only take ~3 LOC.
After this:
if($format == 'json') {
$json = json_decode($content,true);
foreach($json['data']['children'] as $child) { // we want all children for this example
$title = $child['data']['title'];
}
}
}`
Then store in a json file and dump it into your localfolder website path
$storeTitle = array('title'=>$title)
$fp = fopen('../pathToJsonFile/title.json'), 'w');
fwrite($fp, json_encode($storeTitle));
fclose($fp);
Then you can always call the json file next time and decode it and extract the title into a variable for use
i usually just store the data as is as a flat file, like so:
<?php
define('TEMP_DIR', 'temp/');
define('TEMP_AGE', 3600);
function getinfo($url) {
$temp = TEMP_DIR . urlencode($url) . '.json';
if(!file_exists($temp) OR time() - filemtime($temp) > TEMP_AGE) {
$info = "http://www.reddit.com/api/info.json?url=$url";
$json = file_get_contents($info);
file_put_contents($temp, $json);
}
else {
$json = file_get_contents($temp);
}
$json = json_decode($json, true);
$titles = array();
foreach($json['data']['children'] as $child) {
$titles[] = $child['data']['title'];
}
return $titles;
}
$test = getinfo('http://imgur.com/');
print_r($test);
PS.
i use file_get_contents to get the json data, you might have your own reasons to use curl.
also i don't check for format, cos clearly you prefer json.
I'm writing a RESTful API. I'm having trouble with uploading images using the different verbs.
Consider:
I have an object which can be created/modified/deleted/viewed via a post/put/delete/get request to a URL. The request is multi part form when there is a file to upload, or application/xml when there's just text to process.
To handle the image uploads which are associated with the object I am doing something like:
if(isset($_FILES['userfile'])) {
$data = $this->image_model->upload_image();
if($data['error']){
$this->response(array('error' => $error['error']));
}
$xml_data = (array)simplexml_load_string( urldecode($_POST['xml']) );
$object = (array)$xml_data['object'];
} else {
$object = $this->body('object');
}
The major problem here is when trying to handle a put request, obviously $_POST doesn't contain the put data (as far as I can tell!).
For reference this is how I'm building the requests:
curl -F userfile=#./image.png -F xml="<xml><object>stuff to edit</object></xml>"
http://example.com/object -X PUT
Does anyone have any ideas how I can access the xml variable in my PUT request?
First of all, $_FILES is not populated when handling PUT requests. It is only populated by PHP when handling POST requests.
You need to parse it manually. That goes for "regular" fields as well:
// Fetch content and determine boundary
$raw_data = file_get_contents('php://input');
$boundary = substr($raw_data, 0, strpos($raw_data, "\r\n"));
// Fetch each part
$parts = array_slice(explode($boundary, $raw_data), 1);
$data = array();
foreach ($parts as $part) {
// If this is the last part, break
if ($part == "--\r\n") break;
// Separate content from headers
$part = ltrim($part, "\r\n");
list($raw_headers, $body) = explode("\r\n\r\n", $part, 2);
// Parse the headers list
$raw_headers = explode("\r\n", $raw_headers);
$headers = array();
foreach ($raw_headers as $header) {
list($name, $value) = explode(':', $header);
$headers[strtolower($name)] = ltrim($value, ' ');
}
// Parse the Content-Disposition to get the field name, etc.
if (isset($headers['content-disposition'])) {
$filename = null;
preg_match(
'/^(.+); *name="([^"]+)"(; *filename="([^"]+)")?/',
$headers['content-disposition'],
$matches
);
list(, $type, $name) = $matches;
isset($matches[4]) and $filename = $matches[4];
// handle your fields here
switch ($name) {
// this is a file upload
case 'userfile':
file_put_contents($filename, $body);
break;
// default for all other files is to populate $data
default:
$data[$name] = substr($body, 0, strlen($body) - 2);
break;
}
}
}
At each iteration, the $data array will be populated with your parameters, and the $headers array will be populated with the headers for each part (e.g.: Content-Type, etc.), and $filename will contain the original filename, if supplied in the request and is applicable to the field.
Take note the above will only work for multipart content types. Make sure to check the request Content-Type header before using the above to parse the body.
Please don't delete this again, it's helpful to a majority of people coming here! All previous answers were partial answers that don't cover the solution as a majority of people asking this question would want.
This takes what has been said above and additionally handles multiple file uploads and places them in $_FILES as someone would expect. To get this to work, you have to add 'Script PUT /put.php' to your Virtual Host for the project per Documentation. I also suspect I'll have to setup a cron to cleanup any '.tmp' files.
private function _parsePut( )
{
global $_PUT;
/* PUT data comes in on the stdin stream */
$putdata = fopen("php://input", "r");
/* Open a file for writing */
// $fp = fopen("myputfile.ext", "w");
$raw_data = '';
/* Read the data 1 KB at a time
and write to the file */
while ($chunk = fread($putdata, 1024))
$raw_data .= $chunk;
/* Close the streams */
fclose($putdata);
// Fetch content and determine boundary
$boundary = substr($raw_data, 0, strpos($raw_data, "\r\n"));
if(empty($boundary)){
parse_str($raw_data,$data);
$GLOBALS[ '_PUT' ] = $data;
return;
}
// Fetch each part
$parts = array_slice(explode($boundary, $raw_data), 1);
$data = array();
foreach ($parts as $part) {
// If this is the last part, break
if ($part == "--\r\n") break;
// Separate content from headers
$part = ltrim($part, "\r\n");
list($raw_headers, $body) = explode("\r\n\r\n", $part, 2);
// Parse the headers list
$raw_headers = explode("\r\n", $raw_headers);
$headers = array();
foreach ($raw_headers as $header) {
list($name, $value) = explode(':', $header);
$headers[strtolower($name)] = ltrim($value, ' ');
}
// Parse the Content-Disposition to get the field name, etc.
if (isset($headers['content-disposition'])) {
$filename = null;
$tmp_name = null;
preg_match(
'/^(.+); *name="([^"]+)"(; *filename="([^"]+)")?/',
$headers['content-disposition'],
$matches
);
list(, $type, $name) = $matches;
//Parse File
if( isset($matches[4]) )
{
//if labeled the same as previous, skip
if( isset( $_FILES[ $matches[ 2 ] ] ) )
{
continue;
}
//get filename
$filename = $matches[4];
//get tmp name
$filename_parts = pathinfo( $filename );
$tmp_name = tempnam( ini_get('upload_tmp_dir'), $filename_parts['filename']);
//populate $_FILES with information, size may be off in multibyte situation
$_FILES[ $matches[ 2 ] ] = array(
'error'=>0,
'name'=>$filename,
'tmp_name'=>$tmp_name,
'size'=>strlen( $body ),
'type'=>$value
);
//place in temporary directory
file_put_contents($tmp_name, $body);
}
//Parse Field
else
{
$data[$name] = substr($body, 0, strlen($body) - 2);
}
}
}
$GLOBALS[ '_PUT' ] = $data;
return;
}
For whom using Apiato (Laravel) framework:
create new Middleware like file below, then declair this file in your laravel kernel file within the protected $middlewareGroups variable (inside web or api, whatever you want) like this:
protected $middlewareGroups = [
'web' => [],
'api' => [HandlePutFormData::class],
];
<?php
namespace App\Ship\Middlewares\Http;
use Closure;
use Symfony\Component\HttpFoundation\ParameterBag;
/**
* #author Quang Pham
*/
class HandlePutFormData
{
/**
* Handle an incoming request.
*
* #param \Illuminate\Http\Request $request
* #param \Closure $next
*
* #return mixed
*/
public function handle($request, Closure $next)
{
if ($request->method() == 'POST' or $request->method() == 'GET') {
return $next($request);
}
if (preg_match('/multipart\/form-data/', $request->headers->get('Content-Type')) or
preg_match('/multipart\/form-data/', $request->headers->get('content-type'))) {
$parameters = $this->decode();
$request->merge($parameters['inputs']);
$request->files->add($parameters['files']);
}
return $next($request);
}
public function decode()
{
$files = [];
$data = [];
// Fetch content and determine boundary
$rawData = file_get_contents('php://input');
$boundary = substr($rawData, 0, strpos($rawData, "\r\n"));
// Fetch and process each part
$parts = $rawData ? array_slice(explode($boundary, $rawData), 1) : [];
foreach ($parts as $part) {
// If this is the last part, break
if ($part == "--\r\n") {
break;
}
// Separate content from headers
$part = ltrim($part, "\r\n");
list($rawHeaders, $content) = explode("\r\n\r\n", $part, 2);
$content = substr($content, 0, strlen($content) - 2);
// Parse the headers list
$rawHeaders = explode("\r\n", $rawHeaders);
$headers = array();
foreach ($rawHeaders as $header) {
list($name, $value) = explode(':', $header);
$headers[strtolower($name)] = ltrim($value, ' ');
}
// Parse the Content-Disposition to get the field name, etc.
if (isset($headers['content-disposition'])) {
$filename = null;
preg_match(
'/^form-data; *name="([^"]+)"(; *filename="([^"]+)")?/',
$headers['content-disposition'],
$matches
);
$fieldName = $matches[1];
$fileName = (isset($matches[3]) ? $matches[3] : null);
// If we have a file, save it. Otherwise, save the data.
if ($fileName !== null) {
$localFileName = tempnam(sys_get_temp_dir(), 'sfy');
file_put_contents($localFileName, $content);
$files = $this->transformData($files, $fieldName, [
'name' => $fileName,
'type' => $headers['content-type'],
'tmp_name' => $localFileName,
'error' => 0,
'size' => filesize($localFileName)
]);
// register a shutdown function to cleanup the temporary file
register_shutdown_function(function () use ($localFileName) {
unlink($localFileName);
});
} else {
$data = $this->transformData($data, $fieldName, $content);
}
}
}
$fields = new ParameterBag($data);
return ["inputs" => $fields->all(), "files" => $files];
}
private function transformData($data, $name, $value)
{
$isArray = strpos($name, '[]');
if ($isArray && (($isArray + 2) == strlen($name))) {
$name = str_replace('[]', '', $name);
$data[$name][]= $value;
} else {
$data[$name] = $value;
}
return $data;
}
}
Pls note: Those codes above not all mine, some from above comment, some modified by me.
Quoting netcoder reply : "Take note the above will only work for multipart content types"
To work with any content type I have added the following lines to Mr. netcoder's solution :
// Fetch content and determine boundary
$raw_data = file_get_contents('php://input');
$boundary = substr($raw_data, 0, strpos($raw_data, "\r\n"));
/*...... My edit --------- */
if(empty($boundary)){
parse_str($raw_data,$data);
return $data;
}
/* ........... My edit ends ......... */
// Fetch each part
$parts = array_slice(explode($boundary, $raw_data), 1);
$data = array();
............
...............
I've been trying to figure out how to work with this issue without having to break RESTful convention and boy howdie, what a rabbit hole, let me tell you.
I'm adding this anywhere I can find in the hope that it will help somebody out in the future.
I've just lost a day of development firstly figuring out that this was an issue, then figuring out where the issue lay.
As mentioned, this isn't a symfony (or laravel, or any other framework) issue, it's a limitation of PHP.
After trawling through a good few RFCs for php core, the core development team seem somewhat resistant to implementing anything to do with modernising the handling of HTTP requests. The issue was first reported in 2011, it doesn't look any closer to having a native solution.
That said, I managed to find this PECL extension called Always Populate Form Data. I'm not really very familiar with pecl, and couldn't seem to get it working using pear. but I'm using CentOS and Remi PHP which has a yum package.
I ran yum install php-pecl-apfd and it literally fixed the issue straight away (well I had to restart my docker containers but that was a given).
I believe there are other packages in various flavours of linux and I'm sure anybody with more knowledge of pear/pecl/general php extensions could get it running on windows or mac with no issue.
I know this article is old.
But unfortunately, PHP still does not pay attention to form-data other than the Post method.
Thanks to friends (#netcoder, #greendot, #pham-quang) who suggested solutions above.
Using those solutions I wrote a library for this purpose:
composer require alireaza/php-form-data
You can also use composer require alireaza/laravel-form-data in Laravel.