help with javascript to php please

[dorello]

Hi everybody,

can you please help me with this javascript? Id like to make a php script out of it.

<script type="text/javascript"> 
window.onload=function() { 
 if (document.getElementById) {  
  document.getElementById('form1').onsubmit=function() {  
   return getURL(document.getElementById('url').value);  
} 
 } 
} 
function getURL(val){ 
 if ((val=='')||(val=='http://www.')) { alert('Please enter a valid URL including http://www.'); } 
 else { 
  val = val;
  var win=open(val); 
 } 
 return false; 
} 
</script> 

If somebody could help me out, Ill say loud THANK YOU VERY MUCH !

[bluewalrus]

This should be in the PHP forum but anyway what is the objective of this? Have an address entered in a form and load it if it is valid, validation being it contains http://www.

[dorello]

The purpose is to load a form from html. Anyway, it works as a js but I wanted to load it as a php file.

[bluewalrus]

Something like

<?php
if (isset($_POST['domain'])) {
$domain = $_POST['domain'];
$correct_domain = "http://www.";
$chars_allowed = strlen($correct_domain);
if (substr($correct_domain, 0, $chars_allowed)) {
//Correct Address Entered
//You can do this a few ways
//Method 1, 2, and 3 are in the head. Method 4 needs to be before any html
?>
<script type="text/javascript">
// Method 1: window.open('<?php echo $domain;?>')
//or
//Method 2: window.parent.location="<?php echo $domain;?>";
</script>
<!-- Method 3: <meta http-equiv="refresh" content="0;url=<?php echo $domain;?>" /> -->
<?php
//Method 4: header("Location: $domain"); 
} else {
//Error
?>
<span style="color:#ff0000;">Please Enter a Valid Domain starting with <?php echo $correct_domain; ?>.</span>
<?php
}
}
?>
<form action="<?php $_SERVER['PHP_SELF']?>" method="post">
<input name="domain" type="text" />
<input type="submit" />
</form>

[dorello]

I could keep the following code and put it into html:

<script type="text/javascript"> 
window.onload=function() { 
 if (document.getElementById) {  
  document.getElementById('form1').onsubmit=function() {  
   return getURL(document.getElementById('url').value);  
} 
 } 
} 
function getURL(val){ 
 if ((val=='')||(val=='http://www.')) { alert('Please enter a valid URL including http://www.'); } 
 else { 
  val = val;
  var win=open(val); 
 } 
 return false; 
} 
</script> 

Id need however to append another .js file to it (like splashpage.js)

I tried:

function getURL(val){ 
 if ((val=='')||(val=='http://www.')) { alert('Please enter a valid URL including http://www.'); } 
 else { 
  val = val;
  var win=open(val+splashpage.js); 
 } 
 return false; 
} 

...with no success. Do you know howto attach that other splash.js file to it, so it would open ONLY AFTER a valid URL has been submited?

[bluewalrus]

Do you want javascript or PHP? I don't do JS well, the solution I gave you was the php solution. If something is wrong please be specific about what is wrong in the php whether it be an error message or not functioning correctly.

[dorello]

Hi,
so, I have the form in a html file (and also the .js script above, in the same html).

Id like to load another external .js file (after the one from the html is executed.

This seccond .js file...

splashpage.js

...should then load the splashpage, on top of the browser (with transparency).

I am sure your php script is perfect, I just dont understand it, at least not yet, cause Im on the way of learning, but still a beginner

Again: after you enter a www.domainname.whatever, that page get browsed and on top of it (Z index) you get the transparent splashpage (which I managed already to make transparent.

[bluewalrus]

So you're looking for an explanation of the PHP? I forgot a comparison before and called the wrong variable but that has been corrected here as well. It actually sounds like you aren't looking to redirect the user but are trying to get the contents of another page to display on your page if that is what you are trying to do that is done a different way. Saying you have a js, and html file isn't that helpful because php can work with both of those for instance here if you use method 1 html sends the form to php which processes it to javascript which redirects the user.

<?php
//If the input field with the name domain is set then process 
//http://php.net/manual/en/function.isset.php
if (isset($_POST['domain'])) {
// set the variable $domain to the $_post value 
$domain = $_POST['domain'];
//set the required starting characters you want here in this case http://www.
$correct_domain = "http://www.";
//count the number of characters in the required characters variable 
$chars_allowed = strlen($correct_domain);
//if the required number of characters of $domain match $correct_domain process 
//in other words $domain = http://www.google.com
// this compares the first character "h" through the last according to the number of characters in $correct_domain which is 11 so that ends at "."
// so this would pull out [B]h[/B]ttp://www[B].[/B]
// and then compare it to $correct_domain which is the same so it processes if $domain were https://www. it would not process because the pulled value would be [B]h[/B]ttps://ww[B]w[/B]
if (substr($domain, 0, $chars_allowed)== $correct_domain) {
//here you process your redirect because it was correct
//Method 1, 2, and 3 go in the head. Method 4 needs to be before any html
// Method 1 and 2 are javascript, method 3 is... html? method 4 is php.
//the echos are written so the result is sent to the page once the php is processed. you might have to put methods 1 and 2 into the body tag with the onload not that good at JS the third method goes in the head is uses the meta redirect and the 4th method goes before any html tags it tells the browser what to load.
?>
<script type="text/javascript">
// Method 1: window.open('<?php echo $domain;?>')
//or
//Method 2: window.parent.location="<?php echo $domain;?>";
</script>
<!-- Method 3: <meta http-equiv="refresh" content="0;url=<?php echo $domain;?>" /> -->
<?php
//Method 4: header("Location: $domain"); 
} else {
//Error, you can handle this however you want
?>
<span style="color:#ff0000;">Please Enter a Valid Domain starting with <?php echo $correct_domain; ?>.</span>
<?php
}
}
?>
<form action="<?php $_SERVER['PHP_SELF']?>" method="post">
<input name="domain" type="text" />
<input type="submit" />
</form>

I guess formatted text doesn't work in commented tags? Can a DD admin/moderator confirm that or verify how to have the bolds show on line 14 of this?

[dorello]

Thanks very much for your time, this is my html:

</head> 
<body> 
<form id="form1" name="form1" method="post" action=""> 
 <label for="url">URL:</label> 
 <input input value="http://www." type="text" name="url" id="url" size="40"> 
 <input type="submit" name="SubmitButton" value="Submit"> 
</form> 
</body> 
</html> 

So, what should I do, just put your code into a say code.php file and write it into the action? I mean:
<form id="form1" name="form1" method="post" action="code.php"> (see above)? Man, Im such a beginner...

[bluewalrus]

Whatever page your currently have make it a .php and put in this:

<?php
if (isset($_POST['url'])) {
$domain = $_POST['url'];
$correct_domain = "http://www.";
$chars_allowed = strlen($correct_domain);
if (substr($domain, 0, $chars_allowed)== $correct_domain) {
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" dir="ltr" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<meta http-equiv="refresh" content="0;url=<?php echo $domain;?>" />
</head>
<body>
<?php
} else {
//Error, you can handle this however you want
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" dir="ltr" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
</head>
<body>
<span style="color:#ff0000;">Please Enter a Valid Domain starting with <?php echo $correct_domain; ?>.</span>
<?php
}
}
?>
<form id="form1" name="form1" method="post" action="<?php $_SERVER['PHP_SELF']?>"> 
<label for="url">URL:</label> 
<input input value="http://www." type="text" name="url" id="url" size="40"> 
<input type="submit" name="SubmitButton" value="Submit"> 
</form> 
</body> 
</html>

This is the whole page.