如何使用ajax在url中保存变量

Question

I have this Code, which is based in a File named trainerModuleView.php and i need the variable lastDeletedUser in a File named database.php

echo '<script>
    $.ajax({
        url: "trainerModulview.php?groupID="+$currentGroupID+"&lastDeletedUser="+$id,
        success: function(data) {

        },
    });
</script>';

I have a Group with students and if i delete one of them, i would like to have the variable in my URL, so i can $_GET['lastDeletedUser'] it later in the database.php. The problem is though, that the URL doesn't even change.

Pls halp Thanks in advance

Answer 1

You can always just end and start your PHP instead of echoing it. Also you can use <?=$VARIABLE?> notation to add a variable to any non-php code.

?>    
<script>
    $.ajax({
        url: "trainerModulview.php?groupID="<?=$currentGroupID?>&lastDeletedUser=<?=$currentGroupID?>",
        success: function(data) {

        },
    });
</script>
<?php

Also, Javascript and Jquery notation uses '+' to add a JS variable into a JS string.

var variable=1;
var yourstring="this the #"+variable+" string";

While php uses '.'.

$variable=1;
$yourstring="this the #".$variable." string";

Also, if you are using double quotes, you can just do, but it's better if you still use '.'.

$yourstring="this the #$variable string";

But for single quotes you need to use '.'.

$yourstring='this the the #'.$variable.' string';

Also, you can do this to make more clean instead of echo:

<?php
$phpstring='this is php';
?>
<script>
 var jsstring='this is JS';
 var phpstring='<?=$phpstring?>';
 alert(phpstring);
</script>
<?php
echo $phpstring;
?>