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Posted by Manish on 10/10/32 11:51
I have the following code in a script
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foreach($serverlist as $sno=>$serverdata) {
$servername = $serverdata['name'];
if($servername) {
unset($outputstr, $outputarr);
$outputstr = exec("ssh -n ".$servername." 'fstat | wc
-l'",
$outputarr);
echo
"\r\n----------------------------------------------------------";
echo "\r\nssh -n ".$servername." 'fstat | wc -l' ";
echo "\r\nservername = ".$servername;
echo "\r\noutputstr = "; var_dump($outputstr);
echo "\r\noutputarr = "; var_dump($outputarr);
}
}
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When executed from browser it displayed:
---------------------------------------------------------- ssh -n
192.168.0.155 'fstat | wc -l' servername = 192.168.0.155 outputstr =
string(0) "" outputarr = array(0) { }
---------------------------------------------------------- ssh -n
192.168.0.156 'fstat | wc -l' servername = 192.168.0.156 outputstr =
string(0) "" outputarr = array(0) { }
---------------------------------------------------------- ssh -n
192.168.0.159 'fstat | wc -l' servername = 192.168.0.159 outputstr =
string(0) "" outputarr = array(0) { }
--------------------------------------------------------------------------------------------------------------------------------
When executed from command line it displayed:
PHP Warning: Module 'ctype' already loaded in Unknown on line 0
PHP Warning: Module 'SimpleXML' already loaded in Unknown on line 0
PHP Warning: Module 'dom' already loaded in Unknown on line 0
PHP Warning: Module 'iconv' already loaded in Unknown on line 0
PHP Warning: Module 'pspell' already loaded in Unknown on line 0
PHP Warning: PHP Startup: Unable to load dynamic library
'/usr/local/lib/php/20041030-debug/ssh2.so' -
/usr/local/lib/php/20041030-debug/ssh2.so: unsupported file layout in
Unknown on line 0
PHP Warning: Module 'pcre' already loaded in Unknown on line 0
PHP Warning: Module 'xml' already loaded in Unknown on line 0
bash: fstat: command not found
Password:
----------------------------------------------------------
ssh -n 192.168.0.155 'fstat | wc -l'
servername = 192.168.0.155
outputstr = string(8) " 340"
outputarr = array(1) {
[0]=>
string(8) " 340"
}
----------------------------------------------------------
ssh -n 192.168.0.159 'fstat | wc -l'
servername = 192.168.0.159
outputstr = string(1) "0"
outputarr = array(1) {
[0]=>
string(1) "0"
}
----------------------------------------------------------
ssh -n 192.168.0.156 'fstat | wc -l'
servername = 192.168.0.156
outputstr = string(8) " 530"
outputarr = array(1) {
[0]=>
string(8) " 530"
}
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Why the variables are only displayed when executed from command line
only and not from browser.
I have tried using sleep() command after exec(), but no change.
$outputstr = exec("ssh -n ".$servername." 'fstat | wc -l'",
$outputarr);
sleep(2);
Thanks.
Manish
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