PHP - Javascript Malfunctions After Readfile?

I'm trying to use the readfile() function to read a html page which has a video embedded (.swf file).

When I call the function, it seems like it just loads the html file but without the dependent files (css,js, etc)
When I call it directly it loads just fine.

Created a hyperlink 'openvideo.php?id=video' that calls this function below:

if($_REQUEST['id'] == 'video') {
   
   readfile('/usr/home/site.com/htdocs/content/videofolder/video.html');

} else {
   
   echo 'nada';
}

Any help is appreciated.

An image is saved in the root directory.
The page "label.php" uses "readfile" to access and display the image using code like this:

$file = '../image.jpg'; // IN ROOT DIRECTORY
$type = 'image/jpeg';
header('Content-Type:'.$type);
header('Content-Length: ' . filesize($file));
readfile($file);

The image then gets embedded into an html page and displayed like this:
Dear Customer, here is your image: <img src="label.php?label=<?= $filename ?>.jpg">

QUESTION: in the event of an error, how do I dipslay the readfile error on the customer's html page?
Even though I have error trapping in the "readfile" code in "label.php" file -- like if a parameter is missing, I'll have exit( "NO IMAGE GENERATED" ).  But this error message won't display on the customer's html page because html treats <?= $filename ?>.jpg" like it's a real image instead of displaying the readfile's "NO IMAGE GENERATED" exit error.

Make sense? No. I probably have to rewrite my question 😃

Edited Monday at 01:07 AM by ChenXiu

In a PHP file [php_one.php], I wrote some PHP code that contained a form.  I used ECHO to write the HTML inside of the PHP tags.

On another PHP page [php_two.php], I wanted to show the code that was used to create the first page [php_one.php].

My first effort provided an interesting result, since the PHP code was readable.  However, all HTML code was visible in its executed form.

There was an actual input field and a submit button (not the code used to produce them) in the context of my coding.

I have tried using:

file_get_contents("FILE")
$array = file("FILE")
readfile("FILE")

All results were similar and carried the same problem.

How can I view code so that even the HTML is visible as code?

I wrote a small application to force downloads of various large video files using readfile. This worked fine. However, the users have changed hosts and now it doesn't work. Small files are fine, but large files will cut off before finishing. Test file is 114MB, but it is always cut off at exactly 67.2MB or 51.4MB depending on a couple criteria.

I've stripped the application down to the key part that's not working and run it on a test page the just immediately goes the file - no logins or any of that shenanigans and htaccess blocking either:

$file = some/file/on/the/server.wmv; //114MB
hea der('Content-Description: File Transfer');
hea der("Content-Type: application/octet-stream");
hea der("Content-Disposition: attachment; filename=" .basename($file));
hea der("Content-Transfer-Encoding: binary");
hea der('Expires: 0');
hea der('Cache-Control: must-revalidate, post-check=0, pre-check=0');
hea der('Pragma: public');
hea der('Accept-Ranges: bytes');
hea der("Content-Length: ".filesize($file));
ob_clean();
flush();
@readfile($file);

(gaps in the header words are to prevent forum breakage)

I've tried the following variations:
transfer encoding - chunked (this results in getting a 51.4 MB download rather than 67.2) content-type application/force-download tried the default force-download code from the php.net manual tried the chunking function variations on php.net readfile page tried without accept ranges originally (only spotted that on this site) set_time_limt to one hour set max memory to 300MB (phpinfo has shown these changes did get accepted) used htacess to disable gzip and deflate (this results in getting a 51.4 MB download rather than 67.2)
(SetEnv no-gzip dont-vary
or
RewriteEngine On
RewriteRule . - [E=no-gzip:1]
or
RemoveOutputFilter DEFLATE html txt xml css js php wmv)
None of these have solved the issue. The code worked fine on the old site, works fine on my site, and works fine on my test server. Direct downloads from the broken site also work fine, just not readfile downloads. The filesize is reading correctly if I echo just that, and it reads properly on the progress bar when downloading through readfile.

The hosting company are blaming my coding. The htaccess is the bit I'm least sure of and I find it hard to get solid info on this part on the web.

Is there anything wrong with my code that could be causing this? Am I missing something? What could be causing the problem?

Many Thanks

An image is secured in the root directory, to be displayed to customer in html document.

This image can be displayed as a link to a php readfile page
The readfile page uses getimagesize("../rootdir/abc.png"), headers, and readfile()
echo "<img src='READFILE.php?image_name=abcd.png'>";
-or-
The image can be displayed directly to browser using
file_get_contents("../rootdir/abc.png"), base64_encode(), and data:image;base64.
echo '<img src="data:image;base64, ' .$img. ' " style="width:5in;height:5in;">';

Which is better? Why and why not?

Thank you.

Edited yesterday at 01:15 PM by ChenXiu

Which is better? Why and why not?

An image is secured in the root directory, to be displayed to customer in html document.

This image can be displayed as a link to a php readfile page
The readfile page uses getimagesize("../rootdir/abc.png"), headers, and readfile()
echo "<img src='READFILE.php?image_name=abcd.png'>";
-or-
The image can be displayed directly to browser using
file_get_contents("../rootdir/abc.png"), base64_encode(), and data:image;base64.
echo '<img src="data:image;base64, ' .$img. ' " style="width:5in;height:5in;">';

Thank you.

I am wanting HTML to render within a table and sourcing the data from another file. In an attempt to do this, I tried:
Code: [Select]
<TABLE class="main">
                <TR>
                        <TD>
                                <?php
                                        readfile('./1/index.html');
                                ?>
                        </TD>
                </TR>
        </TABLE>
This does not work and I am wondering if anyone knows how it can be done - or even if it can be done?

Circumstance:
"label.php" is actually PHP "readfile" page that fetches images from a private root directory.
"customer.html" is the public page where visitors view their images like this:
Dear Customer, Here Is Your Image: <img src="label.php?image=id_number_1001.png">

Question:
Is it okay to use a hidden $_SESSION["filename"] and change what I have now:
Dear Customer, Here Is Your Image: <img src="label.php?image=id_number_1001.png">
To this:
Dear Customer, Here Is Your Image: <img src="label.php">

This works by having the actual image name stored in a hidden session variable, using the following lines of code on my readfile page "label.php" like this:
$imgName = $_SESSION[ "filename" ] . ".png";
$imgPath = "../root_directory/" . $imgName;

Since I do not want customers to be allowed to ever see the image again after logging out, is it okay to rely on a hidden session variable for the filename as I described above?

(Potential hackers will be less tempted to "try different image names and numbers" like "id1.png, id2.png, id3.png" because they will have no idea if the image will be a gif, jpeg, or png, nor have any idea of a numbering sequence.)

Thank you!!

 

I need some help.  I'm having trouble calling a javascript function from a php script

Code: [Select]
<?php 

include ('security.inc');
include ('head.inc');

  echo '
<table class="menutable">
<tr>
<td nowrap>
<div id="sidemenu" style="display:block;">
<ul id="navbar">';

// database-driven menu groups
// get the menu items and groups that this user has access to
if (!isset($_SESSION['usergroupsin']) || $_SESSION['usergroupsin']==''){
$menurs=array();
} else {
$sql="SELECT mg_name, mg_desc, mi_name, mi_desc, mi_link, mi_external_link, 

mgg_gr_id, mig_gr_id
FROM tbl_menu_items 
INNER JOIN tbl_menu_groups ON mi_mg_id=mg_id AND mg_active='y'
LEFT JOIN tbl_menu_groups_groups ON mgg_mg_id=mg_id AND mgg_active='y'
LEFT JOIN tbl_menu_items_groups ON mig_mi_id=mi_id AND mig_active='y'
WHERE (
mgg_gr_id IN (".$_SESSION['usergroupsin'].") OR
mig_gr_id IN (".$_SESSION['usergroupsin'].") OR
mi_secure='n'
)
AND mi_active='y'
AND mg_left_menu='y'
GROUP BY mg_name, mg_desc, mi_name, mi_desc, mi_link, mi_external_link 
ORDER BY mg_sort, mi_sort";
$menurs=myload($sql);
}

$last_mg_name='';
if (count($menurs)>0){
foreach ($menurs as $m){
// show the group heading if we haven't already shown it
if ($m['mg_name']<>$last_mg_name){
echo '<li><strong>&nbsp;<br>'.$m['mg_name'].'</strong></li>';
$last_mg_name=$m['mg_name'];
}
// determine whether this is a system link or not
if ($m['mi_external_link']=='y'){
$thisurl=$m['mi_link'];
} else {
$thisurl=$config['system_url_root'].$m['mi_link'];
}
echo '<li><a title="'.$m['mi_desc'].'" href="'.$thisurl.'"><strong> - '.$m

['mi_name'].'</strong></a></li>';
}
}

echo ' </ul>

</div>
</td>
[b]<input class="button" type="button" value="Hide Menu"  onclick="setTable('sidemenu');return true">[/b]

<td width="100%">
<div id="mainwindow">
<!-- BEGIN PAGE CONTENT -->
';
?>

My javacscipt function is in the head.inc.  I can post that if needed.  The bolded part is what I'm having trouble with.  Specifically, the onclick.  Without that, my script works, if I have the onclick in there, I get a blank page.  I'm trying to hide/show the  div=sidemenu.  If anybody has any suggestions, I'm open to it. 

Hi guys...
i want to do registration of text box which are created dynamically..
please help me how can i do registration?

I wonder whether someone may be able to help me please.

I'm currently running the code below (originating from nearby.org.uk) to convert OS Grid References to Latitude and Longtiude co-ordinates.

Code: [Select]
function converttolatlng() {
    var gr = document.getElementById('osgridref').value;

    var osgb = new GT_OSGB();


    if (osgb.parseGridRef(gr)) {
        var wgs84 = osgb.getWGS84();

        document.getElementById('osgb36lat').value = wgs84.latitude;
        document.getElementById('osgb36lon').value = wgs84.longitude;
    }
    else {
        document.getElementById('osgb36lat').value = "n/a";
        document.getElementById('osgb36lon').value = "n/a";
    }

}
This code is run through a 'click' event from a button on a HTML form and then the record is saved to a mySQL database.

However, once a month, I have a list of approx 20,000 OS Grid References which need converting and saving to the same mySQL database. To do this manually on a button click wouldn't be very practical, so I've been working on doing this automatically.

I may very well be doing this the wrong way, but I've been using the PHP script below to extract the two pieces of information I need from the xml file, the first is the 'Name, and the second is the 'NGR', and it is this field that needs converting.

Code: [Select]
<?

  $objDOM = new DOMDocument();
  $objDOM->load("scheduledmonuments.xml");

  $Details = $objDOM->getElementsByTagName("Details");

  foreach( $Details as $value )
  {
   
    $Name = $value->getElementsByTagName("Name");
    $name  = $Name->item(0)->nodeValue;

    $NGR = $value->getElementsByTagName("NGR");
    $ngr  = $NGR->item(0)->nodeValue;

    echo "$name :: $ngr <br>"; 
  }


?>
This is where I've become a little stuck because I'm not sure how to get the data converted and to a point where it can be saved to the relevant fields in my database.

I just wondered whether someone would perhaps take a look at this please and let me know what I need to do.

Many thanks

hi.  i have a page B which has an image on it. When the page loads i want it to auto click on that image. I wrote the code below but it does not autoclick.  can you please help?


<script language="javascript">

function autoClick() {
     document.getElementById('thisLink').click();
    }

</script>

<php>
$visitpage =  "http://mywebsitei.com/wp-content/uploads/12345.jpg";
<div style="text-align: center;" ######="setTimeout('autoClick();',3000);">
<a href=<?php echo $visitpage ?> rel="lightbox" >
<img src=<?php echo $visitpage; ?> alt=""/></a>
</div>
</php>

New to PHP/Java. Need some help!!! I need the textarea of a site to save what is entered into a text file. I also need javascript to use a pre-validate pop up box, if no data is entered. I can't get both of them to work at the same time. Below is my code.

Code: [Select]

<html>
<head>
<link rel="stylesheet"
type="text/css" href="style.css"/>

<script type="text/javascript">
<!-- <!CDATA[
function validateForm()
{
var x=document.forms["myForm"]["email"].value;
var atpos=x.indexOf("@");
var dotpos=x.lastIndexOf(".");
if (atpos<1 || dotpos<atpos+2 || dotpos+2>=x.length)
  {
  alert("Not a valid e-mail address");
  return false;
  }
}
// ]]> -->
</script>

</head>

<form name="form1" method="post" action="index2.php?saving=1">

<textarea name="data" cols="100" rows="10">
Username:
Password:
---------------------------------------------
</textarea>
<br>
</form>

<form name="myForm" method ="post" action="index2.php?saving=1" onsubmit="return validateForm();">
<tr>
<td align="right" width="10%"> Email: </td>

<td><input type="text" name="email" id="email" size ="40" />
</td>
</tr>

<input type="submit" value="Submit">
</form>
<p>




<a href="index.html">Home</a>

</html>






PHP CODE:

Code: [Select]


<?php
$saving = $_REQUEST['saving'];
if ($saving == 1){ 
$data = $_POST['data'];
$file = "data.txt"; 

$fp = fopen($file, "a") or die("Couldn't open $file for writing!");
fwrite($fp, $data) or die("Couldn't write values to file!"); 

fclose($fp); 
echo "Saved to $file successfully!";

}
?>

the script here is the simplest progress bar ever.. what I want is for the value of the mutiplier (so how fast it loads) to be a php varible pulled from the users file

<html> 
<head> 
<script type="text/javascript"> 
  function progress() { 
   if (document.images["bar"].width < 400) { 
    document.images["bar"].width += 5; 
    document.images["bar"].height = 5; 
   } else { 
    clearInterval(ID); 
   } 
  } 
  
var ID; 
window.onload = function() { 
  ID = setInterval("progress();", 500); 
} 
</script> 
</head> 
<body> 
<img src="black.gif" name="bar" /> 
</body> 
</html> 


POSSIBLE?

well i got more questions since i started at javascript and now im currently practicing php
my question is
whats the equivalent of this lines of codes to php language?

document.getElementById("txt1").value

<input type="button" name="one" id="one" value="1" onclick="javascript:getvalue(1);"\> == well what i mean is can i pass value to php functions every time i click it? just like calculators

OT: can some1 help me translating my js calcu codes to php ones? document.getElementById("txt1").value this is my main problem i cant display the buttons i click