Analysis of the ajaxReturn () method returned by AJAX in thinkphp, thinkphpajaxreturn

Analysis of the ajaxReturn () method returned by AJAX in thinkphp, thinkphpajaxreturn

This article analyzes the AJAX return ajaxReturn () method in thinkphp. We will share this with you for your reference. The details are as follows:

The system supports any AJAX class library. The Action class provides the ajaxReturn method to return data to the client after AJAX is called. The client can receive data in JSON, XML, and EVAL modes. You can configure DEFAULT_AJAX_RETURN to set the data. By default, data is returned in JSON format, you can use different methods to return data when selecting different AJAX class libraries.

If you want to use the ajaxReturn method of ThinkPHP to return data, you must follow the format specifications of the returned data. The data formats returned by ThinkPHP include:

Status operation status
Info prompt information
Data returned data

$ This-> ajaxReturn (return data, prompt information, operation status );

The returned data supports strings, numbers, arrays, and objects. The returned data is encoded and transmitted based on different return formats. If it is in JSON format, it is automatically encoded as a JSON string. If it is in XML format, it is automatically encoded as an XML string. If it is in EVAL format, only the string data is output, the status and info information are ignored.

The following is a simple example:

$ User = M ("User"); // instantiate the User object $ result = $ User-> add ($ data); if ($ result) {// after the client is successfully added, the new user ID is returned, and the prompt information and Operation Status $ this-> ajaxReturn ($ result, "added successfully! ", 1);} else {// operation status and prompt message $ this-> ajaxReturn (0," New error! ", 0 );}

$data['status'] = 1;$data['info'] = 'info';$data['size'] = 9;$data['url'] = $url;$this->ajaxReturn($data,'JSON');

Thinkphp source code:

/*** Return data to the client using Ajax Method * @ access protected * @ param mixed $ data the data to be returned * @ param String $ type AJAX return data format * @ return void */protected function ajaxReturn ($ data, $ type = '') {if (func_num_args ()> 2) {// usage before 3.0 compatibility $ args = func_get_args (); array_shift ($ args ); $ info = array (); $ info ['data'] = $ data; $ info ['info'] = array_shift ($ args ); $ info ['status'] = array_shift ($ args); $ data = $ info; $ type = $ args? Array_shift ($ args): '';} if (empty ($ type) $ type = C ('default _ AJAX_RETURN '); if (strtoupper ($ type) = 'json') {// return the header containing the status information ('content-Type: text/html; charset = UTF-8 ') from the JSON data format to the client '); exit (json_encode ($ data);} elseif (strtoupper ($ type) = 'xml') {// return the XML format data header ('content-Type: text/xml; charset = UTF-8 '); exit (xml_encode ($ data);} elseif (strtoupper ($ type) = 'eval ') {// return the executable js script header ('content-Type: text/html; charset = UTF-8 '); exit ($ data );} else {// Add other formats to TODO }}