I am developing a wordpress plugin , which submits a form to another page. But when I try to submit the form to another page , then that page returns some php error. My form code is below
echo "<form action='".plugins_url()."/wp_voting_poll/frontend_poll_process.php' method='post'>";
echo "<input type='hidden' name='hide' value='$ques' />";
$total_vote_count = $wpdb->get_var( "SELECT COUNT(*) FROM $table_result WHERE question_uid='$ques'" );
if($ques!=""){
echo "<table>";
foreach($ans_data as $ans_res){
// $ans=$ans_res->answer;
$answer_id=$ans_res->id;
$type=$ans_res->answer_type;
$vote_count = $wpdb->get_var( "SELECT COUNT(*) FROM $table_result WHERE answer_id='$answer_id'" );
if($vote_count==0){
error_reporting(0);
}
$vote_percent=($vote_count*100)/$total_vote_count;
echo "<tr> <td>";
echo "<div class='answer_div'>";
if($type==1){
echo "<div class='input'><input type='radio' name='ans_name[]' value='$answer_id'/>".$ans_res->answer."<br/></div>";
}
elseif($type==0){
echo "<div class='input'><input type='checkbox' name='ans_name[]' value='$answer_id'/>".$ans_res->answer."<br/></div>";
}
if($backend==0){
echo "</td> <td>";
echo "<h4> total vote counted $vote_percent% </h4>";
// echo "<img src='$url' width='$width_img'/>";
$bar=$vote_percent*5.9;
echo "<img src='$url' height='10' width='$bar' />";
echo "</td></tr>";
}
}
echo "</table>";
echo "<input type='submit' value='Submit vote' />";
echo "</form>";
And this is my code of another page , which should process the form . But unfortunately it returns php error.
<?php
require_once("function_ip.php");
$vote_result=$_POST['ans_name'];
$uid=uniqid();
global $wpdb;
$table_vote=$wpdb->prefix."poll_answer_result";
$count=count($vote_result);
$hidden=$_POST['hide'];
$ans_data=$wpdb->get_results("SELECT * FROM $table_vote WHERE question_id='$hidden'" );
if($count>0){
foreach($vote_result as $vote_arr){
$wpdb->insert($table_vote,
array('answer_id' => $vote_arr,
'ip' =>get_client_ip(),
'question_uid' => $hidden
));
}
}
?>
WordPress has a generic handler to deal with all forms –
admin-post.php
.If you include a hidden field in your form called
action
, you can then hook in to a function of your choice with all the goodness of wordpress included.And then in your
functions.php
file (or any otherphp
file that you have included viafunctions.php
), you can use this method.I’m not sure if you require a redirect once you reach your desired destination, but that can be easily accounted for if you do.
And one final question – is this form on the front end, or in the admin area? Not that it should make a difference that this answer, I’m just curious…
Your
frontend_poll_process.php
page is getting called out of the WordPress environment, therefore returning an error on$wpdb->get_results()
.You can add your code to a plugin or
functions.php
using hooks: