My first time to deploy matlab exec in php and i need ur help.
I have a matlab script compiled as sampleExe.exe (standalone app) with a single argument 'IdNo' to processes images. When i call it thru command line using sampleExe 2014000, the program runs and gives the desired output. However, I am having trouble when deploying/calling sampleExe.exe file from php as it gives me no output at all. :(
Here's the code i tried based on this: Call matlab exe from php is not working well
<?php
define("EVAL_IMAGE","sampleExe.exe");
$target=isset($_REQUEST['IdNo'])?trim($_REQUEST['IdNo']):"";
if($target==""){
echo "No folder name is passed";
exit();
}
passthru(EVAL_IMAGE." ".$target);
?>
Any help is very much appreciated. Btw, I tried running it in a localhost and sampleExe.exe is also save in c:/wamp/www
<?php
try {
define("EVAL_IMAGE","mainProg1.exe");
$target=isset($_REQUEST['IdNo'])?trim($_REQUEST['IdNo']):"";
if($target==""){
echo "No folder name is passed";
exit();
}
set_time_limit(300);
$return = exec(EVAL_IMAGE." ".$target);
echo "return = " .$return;
}catch (Exception $e) {
echo 'Message: ' .$e->getMessage();
}
exit(0); ?>
Related
So I have question which in my head should seem very simple to solve.
I want to ssh to a server, which I have done a ton of times, and then make a shell execute which I have done a ton of times as well, but it is not working.
The code i am using
<?php
$ip = '1.2.3.4';
$cmd = "ssh user#".$ip;
$result = shell_exec($cmd." 'sudo /bin/systemctl stop wildfly.service'");
echo "<pre>output: $result</pre>";
echo "<div class='alert alert-success'><strong>SUCCESS</strong><br>Wildfly node has now restarted</div>";
?>
Running the command directly from the terminal
ssh user#1.2.3.4 sudo /bin/systemctl stop wildfly.service
It works, but running it within php gives me nothing, and it not doing anything.
Can someone maybe guide me to what I am doing wrong with my shell_exec?
Thanks in advance!
function execPrint($command) {
try {
$result = array();
exec($command.' 2>&1', $result);
foreach ($result as $line) {
print($line . "\n");
}
echo '------------------------' . "\n" . "\n";
} catch (\Exception $e) {
print($e);
}
http_response_code(200);
}
i made this function to get result
add 2>&1 in last of the CMD
use print with every line
use try and catch to catch any error
The user attempting to execute those shell commands from php is likely _www and not you. Try this code in your php to gain insight:
$shellscript = 'whoami';
$sr = shell_exec($shellscript);
echo '['.$sr.']';
Make sure the shell_exec function is not disabled. It usually is disabled by default in CPanel accounts PHP.ini and PHP-FPM .ini files.
You can check it using this validation
if (is_callable('shell_exec') && (false === stripos(ini_get('disable_functions'), 'shell_exec'))) {
echo "shell_exec enabled";
} else {
echo "shell_exec disabled";
}
It's the most common reason i've found for shell_exec to return always empty
You can also execute a quick command for testing purpouses
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);
echo "Command: shell_exec('ls -lart')";
try {
$output = shell_exec('ls -lart');
echo "<pre>$output</pre>";
} catch (Exception $e) {
echo $e->getMessage();
}
I have a script which can be called both from browser and CLI. It produces output, so adding a new line is a must. But, if youre viewing from a browser, the .php should use <br> while watching from CLI its the \r\n or PHP_EOL:
echo 'output1';
if $browser
{
echo '<br>';
}
else
{
echo "\r\n";
}
echo 'output2';
Isnt there any universal character?
Versions of PHP binaries could vary, for example on servers that have fastcgi the php binary might point to
php-cgi.
So to test cli in an interface independent manner checking the contents of the $_SERVER variable for example is a more preferred way.
I think this would handle all the checks from whether the script is run from
Command line
As a cron job
PHP binary
Browser
function is_cli() {
return ((empty($_SERVER['REMOTE_ADDR']) and ! isset($_SERVER['HTTP_USER_AGENT']) and count($_SERVER['argv']) > 0) ||defined('STDIN')) ? true : false;
}
echo 'output1';
if (is_cli()) {
echo "\r\n";
} else {
echo '<br>';
}
echo 'output2';
I'm creating a button on my web page.I want that when someone presses this button an execution of a process of Linux commands on my first server (like "cd file" "./file_to_execute"..) when these commandes are done and finished i want to connect on another server by ssh and to execute another commands.
the probleme is how can i know that the commands before are already finished to proceed to the second part which is to connect on another server .
to resume :
first step connect on the first server , execute some commands
=> when these commands are done ( the part i dont know how to do it )
second step : to connect on another server and execute some others commands.
I'm searching for a way that will allows me to add some pop up to inform the user of my web page that he finished the first step and he started the second.
<?php
$hostname = '192.177.0.252';
$username = 'pepe';
$password = '*****';
$commande = 'cd file && ./file_one.sh';
if (false === $connection_first = ssh2_connect($hostname, 22)) {
echo 'failed<br />';
exit();
}
else {
echo 'Connected<br />';
}
if (false === ssh2_auth_password($connection_first, $username, $password)) {
echo 'failed<br />';
exit();
}
else {
echo 'done !<br />';
}
if (false === $stream = ssh2_exec($connection_first, $commande)) {
echo "error<br />";
}
?>
Thanks
PS: sorry for my English, I'm from Barcelone
To handle events where an exception occurs i would recommend using a try/catch statement, like the one below:
try {
echo inverse(5) . "\n";
echo inverse(0) . "\n";
} catch (Exception $e) {
echo 'Caught exception: ', $e->getMessage(), "\n";
}
When you're trying to handle events and need to know when they finish, there are a few ways to achieve this. You can either set a boolean to true after the command has been executed (like what you are already doing). OR you can return output from the command by printing the output to a txt file and then echoing out the returns of this file. See code below:
exec ('/usr/bin/flush-cache-mage > /tmp/.tmp-mxadmin');
$out = nl2br(file_get_contents('/tmp/.tmp-mxadmin'));
echo $out;
At this point you can create conditions based off of what is returned in the $out variable.
I want to create my own little control panel for my minecraft server,
I got problems with executing commands in php.
So if I want to execute a .sh file in PHP It works, I tried to do an output with
echo "xyz"
This works, but if I try to start a server, it doesnt..
My Server-Start-File:
echo "$1 's Server is starting with $2 MB of RAM"
screen -AmdS $1 java -Xmx$2M -jar spigot1649.jar
My PHP-Script:
<?php
$x = shell_exec('./start.sh test 512');
if($x) {
echo "Started";
echo "" . shell_exec('./start.sh test 512');
} else {
echo "Failed";
}
?>
....
else {
$affiliate->setStatus('D');
echo "Before load";die;
if($affiliate->load())
{
echo $affiliate->getUsername();
die(($affiliate->getUsername())."Success to load affiliate");
}
else
{
$chkaffiliate= new Pap_Api_Affiliate($session);
$chkaffiliate->setUsername($_POST['txt_email']);
if($chkaffiliate->load())
{
echo $chkaffiliate->getUsername();
}
die("Failed to load affiliate");
}
die("Failed to process payment,account request declined. <br><br>Please try again using a different email OR Contact our support team to manually approve your account.".$response->error_message);
}
I get the output Failed to process payment...that is, the last die() in the above code, however I don't get the Before Load in the first echo, while both are in the same block. Any ideas?
This is just not possible.
if (something){
die();
}
else{
die();
}
dies everytime, in any case. Search for other die("Failed to process payment"); function calls
Your problem is with this line:
echo "Before load";die;
You die immediately after the echo statement so no other processing will take place!