change a varibale with a link?

jasondavis

<?PHP
$pic = '1';  //Global announcement box 1=on 0=off
?>

I have a file like above that is included into many files, is there a way without using a DB to make it where I can change 1 to 0 and back and forth without manually editing this file, Like go to a special link and it will change the value in this file?

devinemke

$pic_array = array('0','1');
if (isset($_GET['pic']) && in_array($_GET['pic'], $pic_array)) {$pic = $_GET['pic'];} else {$pic = 1;}

echo $pic;

...then pass pic as a GET var:
http://www.jasondavis.com/index.php?pic=1
http://www.jasondavis.com/index.php?pic=0

jasondavis

thanks for the reply, in my particular situation though I need to actually write this value to the file

devinemke

then store it in a session

jasondavis

devinemke wrote:
then store it in a session

a session isn't the solution for this situation either, I being the admin need to change the value of that file which is then inserted into all the public pages

devinemke

then either [man]fwrite[/man] it to a text file or better yet store the value in a database.

jasondavis

can fwrite, write to a php file instead of a txt

devinemke

a PHP file is a plain ASCII text file...so yes

jasondavis

any idea how I can get this to work

<?
$on = "$pic = '1';";
$open = fopen("pics.php", "w");
fwrite($open, $on);
fclose($open);
echo "Done!\n";
?>

I want to write the value of $on to a php file so the php file will consist of

$pic = '1';

devinemke

$on = '$pic = 1;';
$open = fopen('pics.php', 'w');
fwrite($open, $on);
fclose($open); 
echo 'Done!';

jasondavis

devinemke wrote:

$on = '$pic = 1;';
$open = fopen('pics.php', 'w');
fwrite($open, $on);
fclose($open); 
echo 'Done!';

awsoem you're a life save thanks

1 more thing I have saw beofre is a signle file when refreshed will change the value.

So right now I have 2 files, 1 to turn on and 1 to turn off, does anyone know how to make it change the value 1 to 0 and back and forth evertime i refresh the script

On script

<?
$on = '<?PHP $pic = 1;?>';
$open = fopen('pics.php', 'w');
fwrite($open, $on);
fclose($open);
echo 'Pics turned on!';
?>

Off script

<?
$on = '<?PHP $pic = 0;?>';
$open = fopen('pics.php', 'w');
fwrite($open, $on);
fclose($open);
echo 'Pics turned on!';
?>

devinemke

if this one boolean value is all you need to store then i suggest you just use a .txt file with just the value on line 1 and use something like...

$value = trim(file_get_contents('pic.txt'));
if ($value == 1) {$new_value = 0;}
if ($value == 0) {$new_value = 1;}

$handle = fopen('pic.txt', 'w');
fwrite($handle, $new_value); 
fclose($handle); 

$value = trim(file_get_contents('pic.txt'));
echo 'value changed to: ' . $value;

...where pic.txt is your storage file

jasondavis

devinemke wrote:
if this one boolean value is all you need to store then i suggest you just use a .txt file with just the value on line 1 and use something like...
$value = trim(file_get_contents('pic.txt'));
if ($value == 1) {$new_value = 0;}
if ($value == 0) {$new_value = 1;}

$handle = fopen('pic.txt', 'w');
fwrite($handle, $new_value); 
fclose($handle); 

$value = trim(file_get_contents('pic.txt'));
echo 'value changed to: ' . $value;
...where pic.txt is your storage file

I see I'm just confused how I would make the value of my file Im writing to be this
<?PHP $pic = 1;?>

ClarkF1

You could use

$pic = trim(file_get_contents('pic.txt'));

It'll get the value from the file and assign it to $pic so you wouldn't need the tags