php shell_exec() out put to get a text file

php command-line exec shell-exec

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Solution 1

As you forgot to mention, your command provides a non ending output stream. To read the output in real time, you need to use popen.

Example from PHP's website :

$handle = popen('/path/to/executable 2>&1', 'r');
echo "'$handle'; " . gettype($handle) . "\n";
$read = fread($handle, 2096);
echo $read;
pclose($handle);

You can read the process output just like a file.

Solution 2

If you don't need PHP, you can just run that in the shell :

rate -c 192.168.122.0/24 > file.txt

If you have to run it from PHP :

shell_exec('rate -c 192.168.122.0/24 > file.txt');

The ">" character redirect the output of the command to a file.

Solution 3

You can also get the output via PHP, and then save it to a text file

    $output = shell_exec('rate -c 192.168.122.0/24');
    $fh = fopen('output.txt','w');
    fwrite($fh,$output);
    fclose($fh);

13,006

Author by

Roshan Wijesena

Open source developer at WSO2. https://github.com/rswijesena

Updated on June 04, 2022

Comments

Roshan Wijesena almost 2 years

I'm trying to run rate -c 192.168.122.0/24 command on my Centos computer and write down the output of that command to the text file using shell_exec('rate -c 192.168.122.0/24') command; still no luck!!
Matthieu Napoli about 13 years

Well if you run the command yourself do you get an output ? With and without the "> file.txt". This is weird if the text file is empty, that means that the command doesn't print any result.
Roshan Wijesena about 13 years

thank you for your reply .yes i can get the out put when run the command in terminal its non ending output stream
Salman A about 13 years

@Roshan: Did you run into a "permission problem"? Try adding 2>&1 to the above mentioned command line. I doubt if you can run arbitrary commands from php.
Roshan Wijesena about 13 years

@Salman There is no problem in file permission i can get the out out of ls -l to the text file easily..
Roshan Wijesena about 13 years

No luck buddy nothing get write to the text file
Salman A about 13 years

@Roshan: it could still be a permission problem, ls command could have different permissions compared to rate command. Did you try redirecting standard error to a text file?
Matthieu Napoli about 13 years

Ok if this is a non ending output that is normal. I'll try another answer.
Matthieu Napoli about 13 years

See my answer regarding popen.
Roshan Wijesena about 13 years

yes this works fine thank you very much dude for your help very appreciated.