I'm asynchronously posting to a PHP file that echoes out a few key things. I want to write all of its output to a logfile. What would be the simplest way to do this?
I would use a simple wrapper, like http://www.redips.net/php/write-to-log-file/. All you need to do is include the file, instantiate the Logger class, and set a path. You would need to perform the logging operation after/before each echo.
<?php
// Before you have any output!
ob_start();
// All of your other code, echos, etc.
// Sends the Output Buffer, also captures it in the $output variables
$output = ob_get_flush();
// Some extra info for the Logfile, so you know when and who saw it
$logPrefix = "\n\n".
"Time: ".date( 'Y-m-d H:i:s' )."\n".
"IP: ".$_SERVER['REMOTE_ADDR']."\n\n";
// Write the data to the Logfile, and append it to the end (if file already exists)
file_put_contents( 'yourLogfile.txt' , $logPrefix.$output , FILE_APPEND );
?>
Related
actual I finished writing my program. Because it is only a plugin and it runs on a external server I still want to see if I get some errors or something else in the console.
I wrote every console input with echo ...;. My question now is if it is possible to get the text of the console?
Because then I could easily safe it in a .txt file and could get access to it from the web :) - Or is there another way to get the console text?
I could probably just say fwrite(...) instand of echo ...;. But this will cost a lot of time...
Greetings and Thank You!
An alternative that could be usefull on windows would be to save all the output buffer to a txt, first check your php configuration for the console app implicit_flush must be off then
<?php
ob_start(); //before any echo
/** YOUR CODE HERE **/
$output = ob_get_contents(); //this variable has all the echoes
file_put_contents('c:\whatever.txt',$output);
ob_flush(); //shows the echoes on console
?>
If your goal is to create a text file to access, then you should create a text file directly.
(do this instead of echoing to console)
$output = $consoleData . "\n";
$output .= $moreConsoleData . "\n";
(Once you've completed that, just create the file:)
$file = fopen('output.txt', 'a');
fwrite($file, $output);
fclose($file);
Of course, this is sparse - you should also check that the file exists, create it if necessary, etc.
For console (commando line interface) you can redirect the output of your script:
php yourscript.php > path-of-your-file.txt
If you haven't access to a command line interface or to edit the cronjob line, you can duplicate the starndar output at the begining of the script:
$fdout = fopen('path-to-your-script.txt', 'wb');
eio_dup2($fdout, STDOUT);
eio_event_loop();
fclose($fdout);
(eio is an pecl extension)
If you are running the script using the console (i.e. php yourscript.php), you can easily save the output my modifying your command to:
php yourscript.php > path/to/log.txt
The above command will capture all output by the script and save it to log.txt. Change the paths for your script / log as required.
I'm working on a cron php script which will run once a day. Because it runs this way, the output from the file can't be seen.
I could literally write all the messages I want into a variable, appending constantly information I want to be written to file, but this would be very tedious and I have a hunch not necessary.
Is there a PHP command to tell the write buffer to write to a log file somewhere? Is there a way to get access to what has been sent to the buffer already so that I can see the messages my script makes.
For example lets say the script says
PHP:
<?
echo 'hello there';
echo 'hello world';
?>
It should output to a file saying: 'hello therehello world';
Any ideas? Is this possible?
I'm already aware of
file_put_contents('log.txt', 'some data', FILE_APPEND);
This is dependent upon 'some data', when I don't know what 'some data' is unless I put it in a variable. I'm trying to catch the results of whatever PHP has outputted.
You may want to redirect your output in crontab:
php /path/to/php/file.php >> log.txt
Or use PHP with, for example, file_put_contents():
file_put_contents('log.txt', 'some data', FILE_APPEND);
If you want to capture all PHP output, then use ob_ function, like:
ob_start();
/*
We're doing stuff..
stuff
...
and again
*/
$content = ob_get_contents();
ob_end_clean(); //here, output is cleaned. You may want to flush it with ob_end_flush()
file_put_contents('log.txt', $content, FILE_APPEND);
you can use ob_start() to store script output into buffer. See php documentation ob_get_clean
<?php
ob_start();
echo "Hello World";
$out = ob_get_clean();
$out = strtolower($out);
var_dump($out);
?>
If You're using cron I suppose that You run this on a Unix machine so:
One of approach is to write everything You want to stdout stream so in Unix You may grab this output to a file:
in php script:
$handle = fopen("php://stdout","w");
fwrite($handle,"Hello world"); // Hello world will be written to console
in cron job grab this output to a file:
#hourly php /var/www/phpscript.php >> /path/to/your/outputfile.txt
Notice: >> operator will append to a file and > operator will overwrite file by new data. File will be created automatically by first write
So everything you put to fwrite call as second argument will be placed in /path/to/your/outputfile.txt
You may call fwrite as many time as you want. Don't forget to close handler by fclose($handle);
I have a document file containing HTML markup. I want to assign the contents of the entire file to a PHP variable.
I have this line of code:
$body = include('email_template.php');
When I do a var_dump() I get string(1) "'"
Is it possible to assign the contents of a file to a variable?
[Note: the reason for doing this is that I want to separate the body segment of a mail message from the mailer script -- sort of like a template so the user just modifies the HTML markup and does not need to be concerned with my mailer script. So I am including the file as the entire body segment on mail($to, $subject, $body, $headers, $return_path);
Thanks.
If there is PHP code that needs to be executed, you do indeed need to use include. However, include will not return the output from the file; it will be emitted to the browser. You need to use a PHP feature called output buffering: this captures all the output sent by a script. You can then access and use this data:
ob_start(); // start capturing output
include('email_template.php'); // execute the file
$content = ob_get_contents(); // get the contents from the buffer
ob_end_clean(); // stop buffering and discard contents
You should be using file_get_contents():
$body1 = file_get_contents('email_template.php');
include is including and executing email_template.php in your current file, and storing the return value of include() to $body1.
If you need to execute PHP code inside the of file, you can make use of output control:
ob_start();
include 'email_template.php';
$body1 = ob_get_clean();
file_get_contents()
$file = file_get_contents('email_template.php');
Or, if you're insane:
ob_start();
include('email_template.php');
$file = ob_end_flush();
As others have posted, use file_get_contents if that file doesn't need to be executed in any way.
Alternatively you can make your include return the output with the return statement.
If your include does processing and outputs with echo [ed: or leaving PHP parsing mode] statements you can also buffer the output.
ob_start();
include('email_template.php');
$body1 = ob_get_clean();
TimCooper beat me to it. :P
Try using PHP's file_get_contents() function.
See more here: http://php.net/manual/en/function.file-get-contents.php
Yes you can its easy.
In the file you want to use the variable place this
require_once ‘/myfile.php';
if(isset($responseBody)) {
echo $responseBody;
unset($responseBody);
}
In the file you are calling /myfile.php place this
$responseBody = 'Hello world, I am a genius';
Thanks
Daniel
You have two optional choices
[Option 1]
Create a file called 'email_template.php'
inside the file add a variable like so
$body = '<html>email content here</html>';
in another file require_once 'email_template.php'
then echo $body;
[Option 2]
$body = require_once 'email_template.php';
I've been writing a php/html page encoder/decoder... I know it already exists but it's a university project so go on XDDD
I encode the pages that I want to protect let's say hypothetically with base64_encode and when I receive a request of any pages I have a loader that reads the coded page, decrypts it and with eval executes it. The real problems arise when I try to decrypt and execute a mixed php/html page. Obviously eval can't execute html code so my question is do I really become crazy about splitting the page executing the php code and print the html? And also if I include an encoded php or php/html page do I really have to reuse the method up here?
I hope someone can really help me because i have a week left before the deadline and I can't change the project at this point.
chris here the function and the fisrt calling in $param[0] i've got the filename called
function MyInclude($filename)
{
// create the temp file
$temp_filename = "tmp.php";
$handle = fopen($temp_filename , 'w+');
if (!$handle)
die('Error creating temp file');
// write the decrypted data, close the handle
$tmp=file_get_contents($filename);
$data=MCrypt_Decode($tmp,'PFL_EPU_V100_mia');
fwrite($handle,$data );
fclose($handle);
// start output buffering to contain any output the script creates
ob_start();
try {
include($temp_filename);
} catch (Exception $e) {
die('There was an error in the encrypted file, cannot process');
}
// get the output, clear the buffer
$output = ob_get_contents();
ob_end_clean();
//destroy the temp file
unlink($temp_filename);
// now you can output the buffer, if desired:
echo $output;
}
MyInclude($param[0]);
the $param[0] file here
<?php
session_start();
$_SESSION['title']='Home';
MyInclude("header.php");
?>
<body>
sono il body <?php echo APP_PATH; ?>
</body>
<?
echo "boss";
MyInclude("footer.php");
?>
any idea about it??? or you need some other code??? let me know T_T
Mike
You can eval() a string that contains mixed html and php, just so long as the tags are included.
http://php.net/manual/en/function.eval.php
When eval() encounters a php close tag (?>), it will stop trying to treat it as php code and just echo everything out until it comes to a php open tag.
The typical solution to your problem is something like this:
$file = ... //Your decoded php/html code here
$file = '?>' . $file; //Add a close tag to the beginning;
ob_start();
eval($file);
$output = ob_get_clean();
echo $output; //Or do something else with it... really, if you're
//just going to be echoing it you can skip the output buffering
Is it possible to decrypt the page, write it to a file, then include it? That would let the PHP interpreter do what it does best - interpret PHP documents. That will include HTML/PHP combinations without relying on eval.
The outline of that would be:
// create the temp file
$temp_filename = "tmp.php";
$handle = fopen($filename , 'w');
if (!$handle)
die('Error creating temp file');
// write the decrypted data, close the handle
fwrite($handle, $decrypted_data);
fclose($handle);
// start output buffering to contain any output the script creates
ob_start();
try {
include_once($temp_filename);
} catch (Exception $e) {
die('There was an error in the encrypted file, cannot process');
}
// get the output, clear the buffer
$output = ob_get_contents();
ob_end_clean();
//destroy the temp file
unlink($temp_filename);
// now you can output the buffer, if desired:
echo $output;
Function references
fopen: http://us2.php.net/manual/en/function.fopen.php
fwrite: http://us2.php.net/manual/en/function.fwrite.php
fclose: http://us2.php.net/manual/en/function.fclose.php
ob_start: http://us2.php.net/manual/en/function.ob-start.php
ob_get_contents: http://us2.php.net/manual/en/function.ob-get-contents.php
ob_end_clean: http://us2.php.net/manual/en/function.ob-end-clean.php
unlink: http://www.php.net/manual/en/function.unlink.php
You will need dump the decoded file to another file and include(); it. The eval approach will not work because it will exit with a parse error if the first item in the file is not either an opening <?php tag, or a valid bit of PHP code.
More than this, you will need to find/replace any occurences of include(), require(), include_once(), and require_once() within the encrypted file with a different function, to ensure you don't try to execute another encrypted file before it has been decrypted. You could do this at execution (ie decryption) time, but it would be much better to it a encryption time, to minimise the time required to pre-fetch the code before it is executed.
You can define these customised functions to decrypt a file and include/require it in your loader script.
Your problem description is a bit vague however your problem seems to be solvable with output buffering.
Have you tried decrypting the page, then parsing the text to split out anything between and then only executing that code?
So, I'm looking for something more efficient than this:
<?php
ob_start();
include 'test.php';
$content = ob_get_contents();
file_put_contents('test.html', $content);
echo $content;
?>
The problems with the above:
Client doesn't receive anything until the entire page is rendered
File might be enormous, so I'd rather not have the whole thing in memory
Any suggestions?
Interesting problem; don't think I've tried to solve this before.
I'm thinking you'll need to have a second request going from your front-facing PHP script to your server. This could be a simple call to http://localhost/test.php. If you use fopen-wrappers, you could use fread() to pull the output of test.php as it is rendered, and after each chunk is received, output it to the screen and append it to your test.html file.
Here's how that might look (untested!):
<?php
$remote_fp = fopen("http://localhost/test.php", "r");
$local_fp = fopen("test.html", "w");
while ($buf = fread($remote_fp, 1024)) {
echo $buf;
fwrite($local_fp, $buf);
}
fclose($remote_fp);
fclose($local_fp);
?>
A better way to do this is to use the first two parameters accepted by ob_start: output_callback and chunk_size. The former specifies a callback to handle output as it's buffered, and the latter specifies the size of the chunks of output to handle.
Here's an example:
$output_file = fopen('test.html', 'w');
if ($output_file === false) {
// Handle error
}
$write_ob_to_file = function($buffer) use ($output_file) {
fwrite($output_file, $buffer);
// Output string as-is
return false;
};
ob_start($write_ob_to_file, 4096);
include 'test.php';
ob_end_flush();
fclose($output_file);
In this example, the output buffer will be flushed (sent) for every 4096 bytes of output (and once more at the end by the ob_end_flush call). Each time the buffer is flushed, the callback $write_ob_to_file will be called and passed the latest chunk. This gets written to test.html. The callback then returns false, meaning "output this chunk as is". If you wanted to only write the output to file and not to PHP's output stream, you could return an empty string instead.
Pix0r's answer is what you want unless you actually need it "included" rather than just executed. For example, if you have login information before the test.php, it will not get passed into the file if you call it with fopen.
If you need it genuinely included, then what you have is the simplest method, but if you want constant output, you'll need to actually write test.php in a manner that outputs as well as stores the information as it goes. As far as I know there's no way to both collect buffer and output it as you go.
Here you go x-send-file, use mod_xsendfile to send file efficiently, really easy.