i want help with simple php code

mido22trika

i want to make a page with a button when anyone clicks on this button it appears for him a number that is increased

for eg:
this html code

<html dir="rtl">

<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<title>New Page 1</title>
</head>

<body>
<form action="add.php" method="get">
<p align="center">
<input type="submit" value="submit">
</p>
</form>
</body>

</html>

when i enter page and click on submit
a counter increases to be 1 then another one enter and click the counter will be 2
e.t.c

Krik

If you want the number to increase each time the page reloads then add a hidden field to the form with the new value in it

<form action="add.php" method="post">
    <input type="hidden" name="incrementing_value" value="<?php echo $incrementing_value; ?>">
    <p align="center">
        <input type="submit" value="submit">
    </p>
</form>

To create the new value

if(isset($_POST['incrementing_value'])) {
    $incrementing_value = $_POST['incrementing_value']++;
}
else {
    $incrementing_value =  1;
}

And of course "$incrementing_value" can be echoed wherever you need it to be displayed.

Also the above segment of code should precede any attempts to "echo" the value of "$incrementing_value".

mido22trika

thx but i want a button in html if i click it a counter increases and this counter take this value till another user clicks the button and if he click f5 the counter remains the same

Krik

HTML has no ability to perform a logical function. In other words it can't count or determine a values. You would have to use PHP or javascript.

So it sounds like you want them to click the button and not leave the page but have the number advance forward. So first you can not use a submit button as that will cause the page to reload.

You can just use a real simple <button> and really you don't even need the <form> tag.

<div id="counter">1</div>
<button type="button" onclick="Countfunc()">Count</button>

Note that the div has an "id". I don't know how or where you wish to display the new value but just make sure the element with the number has a unique id so that javascript can easily find it.

Here's the javascipt

function Countfunc() {
    document.getElementById('counter').innerHTML = document.getElementById('counter').innerHTML++;
}

This should be placed in the <script> tag and that is usually then placed in the <head> of the page.

mido22trika

what about this code i am coding it now

<html>
<head>
<title>&#1575;&#1585;&#1587;&#1604; &#1582;&#1578;&#1605;&#1577;</title>
</head>
<body>
<form>
<p align="center">
<input type="button" value="&#1575;&#1585;&#1587;&#1604; &#1582;&#1578;&#1605;&#1577;" name="submit1">
</p>
</form>
<?php
$var=fopen("count.txt",'r');
$sum=0;
while(!feof($var))
{
$char1=fgetc($var);
$sum=$sum*10;
$sum=$sum+$char1;
}
$sum=$sum/10;
$sum++;
print "$sum";
fclose($var);
$var=fopen("count.txt",'w');
fwrite($var,$sum);
fclose($var);
?>
</body>
</html>

but i have a problem how can i tell the php code if user clicks buttons i do the steps which i wrote in the previous code

Krik

First I want to make sure you understand that php is ran on the server side, the browser can not run php. As such to run a php script you must make an http request (load a page).

In your code you need to first set the "action' and "method" attributes of the <form> tag.

<form action="yourpage.php" method="post">
<p align="center">
<input type="button" value="&#1575;&#1585;&#1587;&#1604; &#1582;&#1578;&#1605;&#1577;" name="submit1">
</p>
</form>

And Second you need to wrap your php in an "if" to look to see if $POST['submit1'] is set.

<?php
if (isset($_POST['submit1'])) {
    // the code to store the sum in a file
}
?>

Next your code is bit off. Your while loop looks to be looping through every character in the file and that is fine for 0-9 values but what happens when you reach 10 and up. I think you would be better off removing the while loop and replacing the "fgetc" with "file_get_contents".

Like this

$var=fopen("count.txt",'r');
$sum=0;

$char1=file_get_contents($var);
$sum=$sum*10;
$sum=$sum+$char1;

$sum=$sum/10;
$sum++;
print "$sum";
fclose($var);
$var=fopen("count.txt",'w');
fwrite($var,$sum);
fclose($var);

Lastly I am not sure what value you are trying to reach but your math is bit odd.

like this line

$sum=$sum*10;

Will equal 0 so it isn't needed

Then if that line isn't need this line

$sum=$sum+$char1;

could be

$sum=$char1;

Next this line

$sum=$sum/10;

makes your value a decimal value so if "char1" is 2 the result is .2 or if "char1" is 55 the result is 5.5

And then

$sum++;

adds 1 to the value.

So if your "count.txt" had a value of 1 the end result is 1.1. Now that could be the result you want but I suspect it isn't the result you want. As the next time you run your above code against the files value you will get a result of 1.11. the next time it will be 1.111 and the next time it will be 1.1111, your value will never reach 2.

mido22trika

now this code works
html code

<html>
<head>
<title>&#1575;&#1585;&#1587;&#1604; &#1582;&#1578;&#1605;&#1577;</title>
<script language="JavaScript1.2">  

if (document.all){  

document.onkeydown = function (){  

var key_f5 = 116; // 116 = F5  

if (key_f5==event.keyCode){  

event.keyCode = 27;  

return false;  

}  

}  

}  

</script>  

</head>
<body>
<form method="POST" action="submitting.php">
<p align="center">
<input type='text' name='box' value='0'><br>
<input type='submit' value="&#1575;&#1585;&#1587;&#1604; &#1582;&#1578;&#1605;&#1577;">
</p>
</form>

<p align="center"><span lang="ar-eg"><font size="4" color="#000080">&#1575;&#1584;&#1575; &#1575;&#1585;&#1583;&#1578; 
&#1605;&#1593;&#1585;&#1601;&#1577; &#1593;&#1583;&#1583; &#1575;&#1604;&#1582;&#1578;&#1605;&#1575;&#1578;</font></span></p>
<p align="center"><span lang="ar-eg"><font size="4" color="#000080">&#1575;&#1580;&#1593;&#1604; &#1593;&#1583;&#1583; 
&#1575;&#1604;&#1582;&#1578;&#1605;&#1575;&#1578; &#1576;&#1589;&#1601;&#1585; &#1608; &#1575;&#1585;&#1587;&#1604; &#1582;&#1578;&#1605;&#1577; </font></span></p>

</body>
</html>

php code

<html>
<head>
<title>number of 5tmat</title>
<meta http-equiv="refresh" content="2; URL=http://m3adikawmia.eb2a.com/art/5tma.htm">
</head>
<body>
<?php
$var=fopen("count.txt",'r');
$sum=0;
while(!feof($var))
{
$char1=fgetc($var);
$sum=$sum*10;
$sum=$sum+$char1;
}
$sum=$sum/10;
$sum=$sum+$_POST['box'];
fclose($var);
$var=fopen("count.txt",'w');
fwrite($var,$sum);
fclose($var);
echo "&#1578;&#1605; &#1578;&#1580;&#1605;&#1610;&#1593; &#1593;&#1583;&#1583; &#1605;&#1606; &#1575;&#1604;&#1582;&#1578;&#1605;&#1575;&#1578;"."$sum\n";
?>
</body>
</html>