11-01-2011
[Solved] Value of a variable is not recognised for commands comes from external file
Hi,
my script is setting a variable with value and this variable is present in my another command that is coming from external file and this command is internally called after this variable is set. but while execution of this command, the value is not retrieved properly.
say,
my script has a variable PWD and it is set to some value say abcd
export PWD=abcd
echo $PWD #here it is returinng the value abcd perfectly.
in the same shell script i am using some piece of code which will bring the unix commands from a external file and execute it one by one. one of the commands is echo $PWD
while execution at this time, it is not returning the value abcd
echo $PWD
simply it is returning $PWD instead of abcd
what is the mistake i do not understand. Please suggest.
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LEARN ABOUT PHP
apache_setenv
APACHE_SETENV(3) 1 APACHE_SETENV(3)
apache_setenv - Set an Apache subprocess_env variable
SYNOPSIS
bool apache_setenv (string $variable, string $value, [bool $walk_to_top = false])
DESCRIPTION
apache_setenv(3) sets the value of the Apache environment variable specified by $variable.
Note
When setting an Apache environment variable, the corresponding $_SERVER variable is not changed.
PARAMETERS
o $variable
- The environment variable that's being set.
o $value
- The new $variable value.
o $walk_to_top
- Whether to set the top-level variable available to all Apache layers.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
Setting an Apache environment variable using apache_setenv(3)
<?php
apache_setenv("EXAMPLE_VAR", "Example Value");
?>
NOTES
Note
apache_setenv(3) can be paired up with apache_getenv(3) across separate pages or for setting variables to pass to Server Side
Includes (.shtml) that have been included in PHP scripts.
SEE ALSO
apache_getenv(3).
PHP Documentation Group APACHE_SETENV(3)