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6 | Copyright CiviCRM LLC (c) 2004-2019 |
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8 | This file is a part of CiviCRM. |
10 | CiviCRM is free software; you can copy, modify, and distribute it |
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31 * @copyright CiviCRM LLC (c) 2004-2019
35 * Class handles functions for JSON format
37 class CRM_Utils_JSON
{
40 * Output json to the client.
43 public static function output($input) {
44 CRM_Utils_System
::setHttpHeader('Content-Type', 'application/json');
45 echo json_encode($input);
46 CRM_Utils_System
::civiExit();
50 * Test whether the input string is valid JSON.
54 public static function isValidJSON($str) {
56 return json_last_error() == JSON_ERROR_NONE
;
60 * Do not use this function. See CRM-16353.
63 * @param array $params
64 * Associated array of row elements.
66 * Datatable needs this to make it more secure.
69 * @param int $iFilteredTotal
70 * Total records on a page.
71 * @param array $selectorElements
75 public static function encodeDataTableSelector($params, $sEcho, $iTotal, $iFilteredTotal, $selectorElements) {
77 $sOutput .= '"sEcho": ' . intval($sEcho) . ', ';
78 $sOutput .= '"iTotalRecords": ' . $iTotal . ', ';
79 $sOutput .= '"iTotalDisplayRecords": ' . $iFilteredTotal . ', ';
80 $sOutput .= '"aaData": [ ';
81 foreach ((array) $params as $key => $value) {
84 foreach ($selectorElements as $element) {
88 // CRM-7130 --lets addslashes to only double quotes,
89 // since we are using it to quote the field value.
90 // str_replace helps to provide a break for new-line
91 $sOutput .= '"' . addcslashes(str_replace(["\r\n", "\n", "\r"], '<br />', $value[$element]), '"\\') . '"';
93 // remove extra spaces and tab character that breaks dataTable CRM-12551
94 $sOutput = preg_replace("/\s+/", " ", $sOutput);
99 $sOutput = substr_replace($sOutput, "", -1);