php - Pass resultset value to a javascript function -


i have 1 resultset, how can pass value javascript function ,and move internal pointer next row.

<?php  $q=mysql_query("select * tbl_map")or die(mysql_error()); $i=0; ?>  <script> $(document).ready(function() { // initialize google maps api v3 var map = new google.maps.map(document.getelementbyid('map'), {   zoom: 15,   maptypeid: google.maps.maptypeid.roadmap }); var marker = null;  function autoupdate() {  <?php  mysql_data_seek($q,$i); $row=mysql_fetch_assoc($q); $i++; ?>  lat=<?php echo $row['latitude']; ?>;  long=<?php echo $row['longitude']; ?>;    navigator.geolocation.getcurrentposition(function(position) {       var newpoint = new google.maps.latlng(lat,                                            long);      if (marker) {       // marker created - move       marker.setposition(newpoint);     }     else {       // marker not exist - create       marker = new google.maps.marker({         position: newpoint,         map: map       });     }      // center map on new position     map.setcenter(newpoint);   });     // call autoupdate() function every 5 seconds   settimeout(autoupdate, 5000);  }  autoupdate();       }); </script>

i want fetch latitude , longitude database , pass autoupdate() can not move internal pointer ahead. how fix ?

try this: in method array of latitude , longitude assigned javascript variable json in form of json data.

    <script>         // ---- php starts here fetch data , placed after <script> tag open        // ---- , store variable in json format.         <?php              $q = mysql_query("select * tbl_map")or die(mysql_error());              $response = array();              for($i = 0; $i < mysql_num_rows($q) ; $i++ )             {                  mysql_data_seek($q, $i);                  $row = mysql_fetch_assoc($q);                  array_push( $response, array(                     'lat'=>$row['latitude'],                     'long'=>$row['longitude']                 ));                  // ------ here php assigns array of data `json`                 // ------ `var json` under scope of javascript                 echo 'var json = ' . json_encode($response) . ';';              }         ?>      // ---- php part ends here , javascript start     // ---- testing `json` var      console.log(json);     console.log(json.length);       $(document).ready(function() {          // initialize google maps api v3         var map = new google.maps.map(document.getelementbyid('map'), {             zoom: 15,             maptypeid: google.maps.maptypeid.roadmap         });          var c = 0;          var marker = null;          function autoupdate() {                  console.log(json[c].lat);                 console.log(json[c].long);                  navigator.geolocation.getcurrentposition( function(position)                 {                      var newpoint = new google.maps.latlng( json[c].lat, json[c].long );                      if (marker) {                         // marker created - move                         marker.setposition(newpoint);                     }                     else {                         // marker not exist - create                         marker = new google.maps.marker({                             position: newpoint,                             map: map                         });                     }                      // center map on new position                     map.setcenter(newpoint);                 });              if (c == (json.length - 1)) { c = 0; } else { c++; }              // call autoupdate() function every 5 seconds             settimeout(autoupdate, 5000);          }          autoupdate();      });      </script>

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