In a html form I have a variable $var = "some value";.
I want to call this variable after the form posted. The form is posted on the same page.
I want to call here
if (isset($_POST['save_exit']))
{
echo $var;
}
But the variable is not printing. Where I have to use the code GLOBAL ??
EDIT: After your comments, I understand that you want to pass variable through your form.
You can do this using hidden field:
<input type='hidden' name='var' value='<?php echo "$var";?>'/>
In PHP action File:
<?php
if(isset($_POST['var'])) $var=$_POST['var'];
?>
Or using sessions: In your first page:
$_SESSION['var']=$var;
start_session(); should be placed at the beginning of your php page.
In PHP action File:
if(isset($_SESSION['var'])) $var=$_SESSION['var'];
First Answer:
You can also use $GLOBALS :
if (isset($_POST['save_exit']))
{
echo $GLOBALS['var'];
}
Check this documentation for more informations.
start_session()? session_start() doesn't work for me.Try that
First place
global $var;
$var = 'value';
Second place
global $var;
if (isset($_POST['save_exit']))
{
echo $var;
}
Or if you want to be more explicit you can use the globals array:
$GLOBALS['var'] = 'test';
// after that
echo $GLOBALS['var'];
And here is third options which has nothing to do with PHP global that is due to the lack of clarity and information in the question. So if you have form in HTML and you want to pass "variable"/value to another PHP script you have to do the following:
HTML form
<form action="script.php" method="post">
<input type="text" value="<?php echo $var?>" name="var" />
<input type="submit" value="Send" />
</form>
PHP script ("script.php")
<?php
$var = $_POST['var'];
echo $var;
?>
global? he just needs a hidden input. that's it.global. i didn't downvote but just pointed out. Question is pretty clear. Only he made it complicated by mentioning Scope. It has nothing to do with scope. He just wants to pass that variable once the form is submitted.
In a html form I have a variable $var = "some value";.-- how? Can you show us the code?