php - Imagecord function is not getting accessed after clicking the submit button in form -

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</head> <body>  <?php         function aftersubmit()     {         $myname = $_post['myname'];         if(isset($myname)){         echo ($myname);          }      }         function imagecord()     {         if(isset($xcoord) && isset($ycoord)){         $xcoord=$_post["myimage_x"];         $ycoord=$_post["myimage_y"];         echo ("x=".$xcoord);         echo ("y=".$ycoord);         }     }       if(isset($_post['submitbutton'])){         aftersubmit();         imagecord();     }  ?>

imagecord() function not getting accessed, aftersubmit button in php. want click on image , after submit should display coordinates.

modified function

function imagecord()     {         if(isset($_post["myimage_x"]) && isset($_post["myimage_y"])){         $xcoord=$_post["myimage_x"];         $ycoord=$_post["myimage_y"];         echo ("x=".$xcoord);         echo ("y=".$ycoord);         }     }

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