I have a problem about which I am very confused. I have a select box with s dynamically generated using a mysqli query:
$result = mysqli_query($db, "SELECT * FROM `users` WHERE `user_id` > 0");
echo '<html><form name="contacts" method="post"><select name="contacts"><option value="Contact list" onchange="func()">Contact List</option>';
while($row = $result->fetch_assoc()){
echo '<option value = '.$row['user_name'].'>'.$row['user_name'] . '</option>';
}
echo '</select></form>';
I am completely new to AJAX, but I need to use jquery and ajax to pass the this.value variable to a php variable for use in a later query.
Here is my script (most of which was found online):
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js">
$("#contacts").change(function() {
//get the selected value
var selectedValue = this.value;
//make the ajax call
$.ajax({
url: 'function.php',
type: 'POST',
data: {option : selectedValue},
success: function() {
console.log("Data sent!");
}
});
});
</script>
Now, when I click a value in the select box, nothing happens. There are no warnings or errors, etc.
Please help me.
p.s. function.php does exist. It is just a simple echo for now (for testing purposes)
UPDATE: HERE IS FUNCION.PHP:
<?php
/*$val = $_REQUEST['selectedValue'];
echo $val;*/
function function(){
$val = $_REQUEST['selectedValue'];
echo $val;
}
?>
UPDATE: Thank you everyone for all your help. I have now got it to work in that the network section of chrome inspect shows the function.php being requested however I still don't get the echo (I used external .js files to get it to work). My J query function is also successful (the success function echoes into the console)
See Question&Answers more detail:
os 与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…
