hamza Posted March 29, 2010 Share Posted March 29, 2010 i want to send values to paypal and need to redirect after validate those values and want to show my own form with contain other information. here is my clss remember i want to valdition . and how i can get response from paypal. <?php class paypal_class { var $last_error; // holds the last error encountered var $ipn_log; // bool: log IPN results to text file? var $ipn_log_file; // filename of the IPN log var $ipn_response; // holds the IPN response from paypal var $ipn_data = array(); // array contains the POST values for IPN var $fields = array(); // array holds the fields to submit to paypal function paypal_class() { // initialization constructor. Called when class is created. $this->paypal_url = 'https://www.paypal.com/cgi-bin/webscr'; $this->last_error = ''; $this->ipn_log_file = 'ipn_log.txt'; $this->ipn_log = true; $this->ipn_response = ''; // populate $fields array with a few default values. See the paypal // documentation for a list of fields and their data types. These defaul // values can be overwritten by the calling script. $this->add_field('rm','2'); // Return method = POST $this->add_field('cmd','_xclick'); } function add_field($field, $value) { // adds a key=>value pair to the fields array, which is what will be // sent to paypal as POST variables. If the value is already in the // array, it will be overwritten. $this->fields["$field"] = $value; } function submit_paypal_post() { // this function actually generates an entire HTML page consisting of // a form with hidden elements which is submitted to paypal via the // BODY element's onLoad attribute. We do this so that you can validate // any POST vars from you custom form before submitting to paypal. So // basically, you'll have your own form which is submitted to your script // to validate the data, which in turn calls this function to create // another hidden form and submit to paypal. // The user will briefly see a message on the screen that reads: // "Please wait, your order is being processed..." and then immediately // is redirected to paypal. echo "<html>\n"; echo "<head><title>Processing Payment...</title></head>\n"; echo "<body onLoad=\"document.form.submit();\">\n"; echo "<center><h3>Please wait, your order is being processed...</h3></center>\n"; echo "<form method=\"post\" name=\"form\" action=\"".$this->paypal_url."\">\n"; foreach ($this->fields as $name => $value) { echo "<input type=\"hidden\" name=\"$name\" value=\"$value\">"; } echo "</form>\n"; echo "</body></html>\n"; } function validate_ipn() { // parse the paypal URL $url_parsed=parse_url($this->paypal_url); // generate the post string from the _POST vars aswell as load the // _POST vars into an arry so we can play with them from the calling // script. $post_string = ''; foreach ($_POST as $field=>$value) { $this->ipn_data["$field"] = $value; $post_string .= $field.'='.urlencode($value).'&'; } $post_string.="cmd=_notify-validate"; // append ipn command // open the connection to paypal $fp = fsockopen($url_parsed[host],"80",$err_num,$err_str,30); if(!$fp) { // could not open the connection. If loggin is on, the error message // will be in the log. $this->last_error = "fsockopen error no. $errnum: $errstr"; $this->log_ipn_results(false); return false; } else { // Post the data back to paypal fputs($fp, "POST $url_parsed[path] HTTP/1.1\r\n"); fputs($fp, "Host: $url_parsed[host]\r\n"); fputs($fp, "Content-type: application/x-www-form-urlencoded\r\n"); fputs($fp, "Content-length: ".strlen($post_string)."\r\n"); fputs($fp, "Connection: close\r\n\r\n"); fputs($fp, $post_string . "\r\n\r\n"); // loop through the response from the server and append to variable while(!feof($fp)) { $this->ipn_response .= fgets($fp, 1024); } fclose($fp); // close connection } if (eregi("VERIFIED",$this->ipn_response)) { // Valid IPN transaction. $this->log_ipn_results(true); return true; } else { // Invalid IPN transaction. Check the log for details. $this->last_error = 'IPN Validation Failed.'; $this->log_ipn_results(false); return false; } } function log_ipn_results($success) { if (!$this->ipn_log) return; // is logging turned off? // Timestamp $text = '['.date('m/d/Y g:i A').'] - '; // Success or failure being logged? if ($success) $text .= "SUCCESS!\n"; else $text .= 'FAIL: '.$this->last_error."\n"; // Log the POST variables $text .= "IPN POST Vars from Paypal:\n"; foreach ($this->ipn_data as $key=>$value) { $text .= "$key=$value, "; } // Log the response from the paypal server $text .= "\nIPN Response from Paypal Server:\n ".$this->ipn_response; // Write to log $fp=fopen($this->ipn_log_file,'a'); fwrite($fp, $text . "\n\n"); fclose($fp); // close file } function dump_fields() { // Used for debugging, this function will output all the field/value pairs // that are currently defined in the instance of the class using the // add_field() function. echo "<h3>paypal_class->dump_fields() Output:</h3>"; echo "<table width=\"95%\" border=\"1\" cellpadding=\"2\" cellspacing=\"0\"> <tr> <td bgcolor=\"black\"><b><font color=\"white\">Field Name</font></b></td> <td bgcolor=\"black\"><b><font color=\"white\">Value</font></b></td> </tr>"; ksort($this->fields); foreach ($this->fields as $key => $value) { echo "<tr><td>$key</td><td>".urldecode($value)." </td></tr>"; } echo "</table><br>"; } } $p = new paypal_class; $p->add_field('business', 'abc@abc.com'); $p->add_field('item_name', 'Paypal Test Transaction'); $p->add_field('amount', '1.99'); $p->submit_paypal_post(); // To process an IPN, have your IPN processing file contain: //$p = new paypal_class; if ($p->validate_ipn()) { // ... (IPN is verified. Details are in the ipn_data() array) echo var_dump(ipn_data()); }; ?> Quote Link to comment Share on other sites More sharing options...
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