.
*/
class html2pdf{
//*********************************************************
// Settings
//*********************************************************
//Your pdfLayer API key
//Available at https://pdflayer.com/product
private $apiKey = 'YOUR_API_KEY_HERE';
//API endpoint
//only needs to change if the API changes location
private $endPoint = 'http://api.pdflayer.com/api/convert';
//Secret Keyword defined in your pdfLayer dashboard
//leave blank if you have not activated this feature
private $secretKey = '';
//API key/value pair params
public $params = array();
//response capture
public $capture;
/*
method: class construction
usage: html2pdf([string url]);
params: url = URL to web page
The pdfLayer API requires a valid webpage URL or posted HTML to convert.
returns: null
*/
public function __construct($url=''){
if( !empty($url) ){
$this->params['document_url'] = $url;
if( !empty($this->secretKey) ){
$secret = md5($url.$this->secretKey);
$this->params['secret_key'] = $secret;
}
}
}
/*
method: convertHTML
usage: convertHTML([redirect=false]);
params: redirect = redirect browser to api
This method will query the api to convert the html to pdf.
If redirect is set to true, browser will be redirected directly to api.
returns: null
*/
public function convertHTML($redirect=false){
if( empty($this->params['document_url']) AND empty($this->params['document_html']) ){
throw new Exception('A document must be provided!');
}
$request = $this->buildRequest();
$postData = array();
if( !empty($this->params['document_html']) ){
$postData['document_html'] = $this->params['document_html'];
}
if( !empty($this->params['header_html']) ){
$postData['header_html'] = $this->params['header_html'];
}
if( $redirect ){
header('location: '.$request);
exit;
}
$ch = curl_init($request);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
curl_setopt($ch,CURLOPT_POST,true);
curl_setopt($ch,CURLOPT_POSTFIELDS,http_build_query($postData));
$this->capture = curl_exec($ch);
curl_close($ch);
$response = json_decode($this->capture);
if( is_object($response) ){
throw new Exception($response->error->info);
}
}
/*
method: downloadCapture
usage: downloadCapture([string fileName='']);
params: fileName = The name of the file written to disk
This method will download the pdf to the client.
returns: null
*/
public function downloadCapture($fileName=''){
$fileName = ( empty($fileName) ) ? 'capture' : $fileName;
if( empty($this->capture) ){
throw new Exception('No pdf has been captured');
}
header('Content-Type: application/pdf');
header('Content-Disposition: attachment; filename="'.$fileName.'"');
header('Content-Transfer-Encoding: binary');
echo $this->capture;
}
/*
method: displayCapture
usage: displayCapture(void);
params: none
This method will display the pdf to the browser.
returns: null
*/
public function displayCapture(){
if( empty($this->capture) ){
throw new Exception('No image has been captured');
}
header('Content-Type: application/pdf');
echo $this->capture;
}
/*
method: buildRequest
usage: buildRequest(void);
params: none
This method will build the api request url.
returns: api request url
*/
public function buildRequest(){
$request = $this->endPoint.'?access_key='.$this->apiKey;
foreach( $this->params as $key=>$value ){
if( $key == 'document_url' ){
$request .= '&document_url='.urlencode($value);
}elseif( $key == 'document_html' ){
//this will be posted
}else{
$request .= '&'.$key.'='.$value;
}
}
return $request;
}
/*
method: setParam
usage: setParam(string key, string value);
params: key = key of the params key/value pair
value = value of the params key/value pair
add or change the params key/value pair specified.
returns: null
*/
public function setParam($key,$value){
$this->params[$key] = $value;
}
}
?>