Hi I wan to save the sourecode of http://stats.pingdom.com/w984f0uw0rey to some directory in my website
<?php
if(!copy("http://stats.pingdom.com/w984f0uw0rey", "stats.html"))
{
echo("failed to copy file");
}
;
?>
but this does not work either for me:
<?php
$homepage = file_get_contents('http://stats.pingdom.com/w984f0uw0rey');
echo $homepage;
?>
But I cannot figure how to do it!
thanks
use
<?
file_put_contents('w984f0uw0rey.html', file_get_contents('http://stats.pingdom.com/w984f0uw0rey'));
?>
be sure that the script has write privileges to the current directory
Use file_get_contents().
The best variant you can do in PHP is to use stream_copy_to_stream:
$url = 'http://www.example.com/file.zip';
$file = "/downloads/stats.html";
$src = fopen($url, 'r');
$dest = fopen($file, 'w');
echo stream_copy_to_stream($src, $dest) . " bytes copied.\n";
If you need to add HTTP options like headers, use context options with the fopen call. See as well this similar answer which shows how. It's likely you need to set a user-agent and things so that the other website's server believes you're a browser.
Related
This is a php script for a user login system that I am developing.
I need it to read from, and write to, the /students/students.txt file, but it won't even read the content already contained in the file.
<?php
//other code
echo "...";
setcookie("Student", $SID, time()+43200, "/");
fopen("/students/students.txt", "r");
$content = fread("/students/students.txt", filesize("/students/students.txt"));
echo $content;
fclose("/students/students.txt");
fopen("/students/students.txt", "w");
fwrite("/students/students.txt", $content."\n".$SID);
fclose("/students/students.txt");
//other code
?>
You are not using fopen() properly. The function returns a handle that you then use to read or edit the file, for example:
//reading a file
if ($handle = fopen("/students/students.txt", "r"))
{
echo "info obtained:<br>";
while (($buffer = fgets($handle))!==false)
{ echo $buffer;}
fclose($handle);
}
//writing/overwriting a file
if ($handle = fopen("/students/students.txt", "w"))
{
fwrite($handle, "hello/n");
fclose($handle);
}
Let me know if that worked for you.
P.S.: Ty to the commentators for the constructive feedback.
There are many ways to read/write to file as others have demonstrated. I just want to illustrate the mistake in your particular approach.
fread takes a file handle as param, NOT a string that represents the path to the file.
So your line:
$content = fread("/students/students.txt", filesize("/students/students.txt")); is incorrect.
It should be:
$file_handle = fopen("/students/students.txt", "r");
$content = fread($file_handle, filesize("/students/students.txt"));
Same thing when you write contents to file using fwrite. Its reference to the file is a File Handle opened using fopen NOT the filepath. when opening a file using fopen() you can also check if the $file_handle returned is a valid resource or is false. If false, it means the fopen operation was not successful.
So your code:
fopen("/students/students.txt", "w");
fwrite("/students/students.txt", $content."\n".$SID);
fclose("/students/students.txt");
Needs to be re-written as:
$file_handle = fopen("/students/students.txt", "w");
fwrite($file_handle, $content."\n".$SID);
fclose($file_handle);
You can see that fclose operates on file handles as well.
File Handle (as per php.net):
A file system pointer resource that is typically created using fopen().
Here are a couple of diagnostic functions that allow you to validate that a file exists and is readable. If it is a permission issue, it gives you the name of the user that needs permission.
function PrintMessage($text, $success = true)
{
print "$text";
if ($success)
print " [<font color=\"green\">Success</font>]<br />\n";
else
print(" [<font color=\"red\">Failure</font>]<br />\n");
}
function CheckReadable($filename)
{
if (realpath($filename) != "")
$filename = realpath($filename);
if (!file_exists($filename))
{
PrintMessage("'$filename' is missing or inaccessible by '" . get_current_user() . "'", false);
return false;
}
elseif (!is_readable($filename))
{
PrintMessage("'$filename' found but is not readable by '" . get_current_user() . "'", false);
return false;
}
else
PrintMessage("'$filename' found and is readable by '" . get_current_user() . "'", true);
return true;
}
I've re-written your code with (IMO) a cleaner and more efficient code:
<?php
$SID = "SOMETHING MYSTERIOUS";
setcookie("Student", $SID, time()+43200, "/");
$file = "/students/students.txt"; //is the full path correct?
$content = file_get_contents($file); //$content now contains /students/students.txt
$size = filesize($file); //do you still need this ?
echo $content;
file_put_contents($file, "\n".$SID, FILE_APPEND); //do you have write permissions ?
file_get_contents
file_get_contents() is the preferred way to read the contents of a
file into a string. It will use memory mapping techniques if supported
by your OS to enhance performance.
file_put_contents
This function is identical to calling fopen(), fwrite() and
fclose() successively to write data to a file. If filename does not
exist, the file is created. Otherwise, the existing file is
overwritten, unless the FILE_APPEND flag is set.
Notes:
Make sure the full path /students/students.txt is
correct.
Check if you've read/write permissions on /students/students.txt
Learn more about linux file/folder permissions or, if you don't access to the shell, how to change file or directory permissions via ftp
Try to do this:
fopen("students/students.txt", "r");
And check to permissions read the file.
I am trying to read a file's content, while doing something like this
$con="HDdeltin";
$fp = fopen($_SERVER['DOCUMENT_ROOT']. "/HDdeltin/Users/$con", "r");
echo $fp;
It doesn't return anything. What am I doing wrong?
Fast solution :
file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/HDdeltin/Users/HDdeltin");
Use file_get_contents(), and you can prevent bad url with realpath().
$con = "HDdeltin";
$path = realpath($_SERVER['DOCUMENT_ROOT'] . "/HDdeltin/Users/$con");
echo file_get_contents($path);
To get current root, you can also use :
getcwd() function.
dirname(__FILE__), you can get more here.
See more :
faster fopen or file_get_contents?
you can read by using this function
echo file_get_contents($_SERVER['DOCUMENT_ROOT']. "/HDdeltin/Users/$con");
You will likely need to use file_get_contents. http://php.net/manual/en/function.file-get-contents.php
Here is the example they provide:
// Read 14 characters starting from the 21st character
$section = file_get_contents('./people.txt', NULL, NULL, 20, 14);
var_dump($section);
So you will likely need to use
$fp = file_get_contents($_SERVER['DOCUMENT_ROOT']. "/HDdeltin/Users/$con", true);
echo $fp;
There are some differences between PHP versions it seems
<?php
// <= PHP 5
$file = file_get_contents('./people.txt', true);
// > PHP 5
$file = file_get_contents('./people.txt', FILE_USE_INCLUDE_PATH);
?>
So be sure to check out the first link provided.
fopen return a resource, not the text
Use file_get_contents($_SERVER['DOCUMENT_ROOT']. "/HDdeltin/Users/$con") instead
I've started a small project trying to make an online text editor, it WAS going well until the system started overwriting files and adding spaces in unnecessarily. I have one file called editor.php where all the file loading, saving and editing is done.
So this is the opening/closing for the files:
<?php
if(isset($_POST['new'])){
$filer = substr(md5(microtime()),rand(0,26),6);
$file_create = $filer.".txt";
$handle = fopen("files/".$file_create,"w");
fclose($handle);
header("Location: editor.php?e=".$filer);
}
$file = $_GET['e'];
$file = basename($file);
$filename = "files/".$file.".txt";
$file_get = file_get_contents($filename);
if(isset($_POST['save'])){
file_put_contents($filename, $_POST['text']);
}
?>
further down the page I have this in a <textarea> tag:
<?php
echo $file_content;
?>
This uses the string from the file_get_contents();
But when I save, nothing happens, in fact it erases the file, when I load a file there are eight spaces but nothing else.
I know there is another way to do this with fopen() and if someone could give me a method to use that, it would be much appreciated.
You have to verify if the $_POST['text'] actually has a content in it.
if(isset($_GET['e'])){
$file = $_GET['e'];
$file = basename($file);
$filename = $_SERVER['DOCUMENT_ROOT']."/files/".$file.".txt";
$file_get = file_get_contents($filename);
if(isset($_POST['save'])){
if(!empty($_POST['text']) && isset($_POST['text']))
{
$length = strlen($_POST['text']);
if($length > 0)
file_put_contents($filename, trim($_POST['text']));
else
die("No content");
}
}
}
ALso check if the file exists and its writable. You can use chmod,mkdir and file_exists functions.
Have a look at PHP's file modes: http://php.net/manual/en/function.fopen.php
If you are opening all your files using fopen() in w mode then your files are being truncated as they are opened. This is how w mode operates. Try using a+ or c+ modes with fopen().
EDIT
Also, the file_put_contents() will also overwrite file contents unless you sett the FILE_APPEND flag, e.g. file_put_contents($file, $data, FILE_APPEND).
I'm creating a html template with notification under nav bar , and admin can change that notification from the system the text of notification bar will be from notetxt file from the same location path where index.html is located i ave tried
<?php
foreach (glob("note.txt") as $filename) {
readfile($filename);
}
?>
and many other way but nothing happens it still stay blank
You are not echoing out the content of the textfile.
do it like this:
$myFile = "note.txt";
$fh = fopen($myFile, 'r');
$theData = fread($fh, filesize($myFile));
fclose($fh);
echo $theData;
This will output your content of the file.
i'm using this code in pure html file
You can't use PHP functions in plain HTML file. MUST be written in a PHP file.
You have now in your code:
<span>
<!--?php
foreach (glob("note.txt") as $filename) {
$fileArr = file_get_contents($filename);
}
?-->
</span>
Try with the examples above in a proper PHP file... then must work.
you can use file_get_contents function,
try something like this :
<?php
foreach (glob("note.txt") as $filename) {
$fileArr = file_get_contents($filename);
}
?>
It's very simple use file_get_contents();
<?= file_exists('note.txt') ? file_get_contents("note.txt") : "file doesn't exists"; ?>
That is all what you need. file_get_contents() get the content of file and returns it. I've also checked if file exists because it may be your problem. Also make sure you have proper rights to read the file(CHMOD) and file is not empty.
I'm using this code now to display a text file on a php/html page.
<?php
foreach (glob("example.txt") as $filename) {
echo nl2br(file_get_contents($filename));
echo "<br></br>";
}
?>
I'm looking for a way to display the example.txt file from another server with URI.
Something like this: http://address.com/dir/example.txt
Is there a simple way to do this?
(I would use an iframe but it's not possible to style the text without Java or JQuery).
You could just use
file_get_contents('http://address.com/dir/example.txt');
You code is totally wrong
foreach (glob("example.txt") as $filename) {
^------------------------- searching for a file
They can only one example.txt file in a folder at a time except you want to get all text files should should be like this in the first place
foreach (glob("*.txt") as $filename) {
If that is not the case the code would work for both remote and local file
error_reporting(E_ALL);
ini_set("display_errors", "on");
$fileName = "example.txt" ; // or http://oursite.com/example.txt
echo nl2br(file_get_contents($fileName));
echo "<br></br>";
You will have to use CURL to fetch the content of the file first and then display it.
Another option is to use iframes and set the target of iframe to the desired text file.
Yet another option is to use ajax to fetch the content from client end as suggested in comment.
Check fopen() / fread() and your available transport wrappers.
For normal length text file you can use:
<?PHP
$file = fopen("http://www.xyz.com/textfile.txt", "rb");
$output = fread($file, 8192);
fclose($file);
echo($output);
echo "<br>";
?>
For longer files:
<?PHP
$file = fopen("http://www.xyz.com/textfile.txt", "rb");
$output = '';
while (!feof($file)) {
$output .= fread($file, 8192);
}
fclose($file);
echo($output);
echo "<br>";
?>
It will prevent packet exceed issues in longer files by concatenating the file together in several groupings using while loop