05-04-2011
how do i change the environment variables?
what can i do to make the binary interface run from the php page?
10 More Discussions You Might Find Interesting
1. Programming
In the Java programme, I am calling function, "Runtime.getRuntime().exec( cmdarray ); " with the array of arguments in which first argument is the binary(C-executable) file and argv1,argv2 and so on. This will be executed on Sun OS system.. I can execute using "sh -c cmdarray" on the shell... (0 Replies)
Discussion started by: shafi2all
0 Replies
2. Shell Programming and Scripting
HI,
Does anybody know if its possible to execute a command through exec,
shell exec, system and if the program doesn't terminate in N seconds
returns control to PHP ?
reg,
research3
---------- Post updated 10-16-09 at 12:20 AM ---------- Previous update was 10-15-09 at 11:03 PM... (1 Reply)
Discussion started by: research3
1 Replies
3. Shell Programming and Scripting
Hi, I've been working on a PHP script which is "supposed" to find an individuals weather based on their geolocation. This script uses "shell_exec".
I have checked my syntax and it is correct, but there is still something missing; for when I call on the script using:
<form action='/weather.php'... (15 Replies)
Discussion started by: o0110o
15 Replies
4. Programming
Hi guys! I really need your help.
I have a php code that should convert doc, ppt,etc. to pdf using openoffice. But its not working, and im not sure what the problem is.
Here's my php code:
define('OOFFICE_LIBRARY', '/usr/lib/openoffice.org/program/');
$convertToPdf = OOFFICE_LIBRARY .... (5 Replies)
Discussion started by: tweine
5 Replies
5. Web Development
If you aren't familiar with LaTeX, don't stress.. it's just a document markup language that I use for creating Math documents.
Anyway, if I execute "latex /home/destructo/Desktop/example.tex" inside my command prompt (ubuntu), it will create the desired document... I decided to try to create a... (3 Replies)
Discussion started by: tyrick
3 Replies
6. Shell Programming and Scripting
Hi all,
i wrote a php script in which i passed some values in the array variable using a for loop.
I have to pass this array values to a shell script using shell_exec()
<?php
while($row = mysql_fetch_assoc($ansid))
{
//$row = mysql_fetch_assoc($ansid);
$aid = $row;
echo $aid;
$i =... (2 Replies)
Discussion started by: vidhyaS
2 Replies
7. AIX
Hi
Script not getting executed via cron but executes successfully when executed manually. Please assist
cbspsap01(appuser) /app/scripts > cat restart.sh
#!/bin/ksh
cd /app/bin
date >>logfile.out
echo "Restart has been started....." >>logfile.out
date >>logfile.out
initfnsw -y restart... (3 Replies)
Discussion started by: samsungsamsung
3 Replies
8. Web Development
Hey guys i've recently been getting into php programming and i became thinking was it possible to create a php script that would allow you to run a terminal from the browser page?
All i've pretty much got so far is:
$var = $_GET;
$output = php shell_exec($var);
echo $output;
... (4 Replies)
Discussion started by: lordfirex
4 Replies
9. Shell Programming and Scripting
Hi,
I need to run a PL/SQL Query from a distant oracle server in order to create spool files and send it to my own server, using a php script.
I firstly created a SH script called myscript.sh
#!/bin/bash
echo "This script is working"
sqlplus... (8 Replies)
Discussion started by: cgstag
8 Replies
10. UNIX for Beginners Questions & Answers
I am trying to execute a command with shell_exec but this command does not work, other commands work
<?php
$output = shell_exec("tail /var/log/syslog");
echo "<pre>$output</pre>";
?> (4 Replies)
Discussion started by: Rodrigo_Bueno
4 Replies
UNSET(3) 1 UNSET(3)
unset - Unset a given variable
SYNOPSIS
void unset (mixed $var, [mixed $...])
DESCRIPTION
unset(3) destroys the specified variables.
The behavior of unset(3) inside of a function can vary depending on what type of variable you are attempting to destroy.
If a globalized variable is unset(3) inside of a function, only the local variable is destroyed. The variable in the calling environment
will retain the same value as before unset(3) was called.
<?php
function destroy_foo()
{
global $foo;
unset($foo);
}
$foo = 'bar';
destroy_foo();
echo $foo;
?>
The above example will output:
bar
To unset(3) a global variable inside of a function, then use the $GLOBALS array to do so:
<?php
function foo()
{
unset($GLOBALS['bar']);
}
$bar = "something";
foo();
?>
If a variable that is PASSED BY REFERENCE is unset(3) inside of a function, only the local variable is destroyed. The variable in the
calling environment will retain the same value as before unset(3) was called.
<?php
function foo(&$bar)
{
unset($bar);
$bar = "blah";
}
$bar = 'something';
echo "$bar
";
foo($bar);
echo "$bar
";
?>
The above example will output:
something
something
If a static variable is unset(3) inside of a function, unset(3) destroys the variable only in the context of the rest of a function. Fol-
lowing calls will restore the previous value of a variable.
<?php
function foo()
{
static $bar;
$bar++;
echo "Before unset: $bar, ";
unset($bar);
$bar = 23;
echo "after unset: $bar
";
}
foo();
foo();
foo();
?>
The above example will output:
Before unset: 1, after unset: 23
Before unset: 2, after unset: 23
Before unset: 3, after unset: 23
PARAMETERS
o $var
- The variable to be unset.
o $...
- Another variable ...
RETURN VALUES
No value is returned.
EXAMPLES
Example #1
unset(3) example
<?php
// destroy a single variable
unset($foo);
// destroy a single element of an array
unset($bar['quux']);
// destroy more than one variable
unset($foo1, $foo2, $foo3);
?>
Example #2
Using (unset) casting
(unset) casting is often confused with the unset(3) function. (unset) casting serves only as a NULL-type cast, for completeness. It
does not alter the variable it's casting.
<?php
$name = 'Felipe';
var_dump((unset) $name);
var_dump($name);
?>
The above example will output:
NULL
string(6) "Felipe"
NOTES
Note
Because this is a language construct and not a function, it cannot be called using variable functions.
Note
It is possible to unset even object properties visible in current context.
Note
It is not possible to unset $this inside an object method since PHP 5.
Note
When using unset(3) on inaccessible object properties, the __unset() overloading method will be called, if declared.
SEE ALSO
isset(3), empty(3), __unset(), array_splice(3).
PHP Documentation Group UNSET(3)