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Top Forums Shell Programming and Scripting using the exported variable after su Post 302427276 by rahulkav on Friday 4th of June 2010 11:47:35 AM
Old 06-04-2010
using the exported variable after su

Dear All,How can use a variable which I have exported when I am logged into one user to be used once I su to another user.something like 1.Login to Unix box as user12. export var1="TEST"3. su - user24. User the var1 value ( it should return TEST)I have checked just export does not work. any other way we can do this.I am talking about Solaris.cheers,
 

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VAR_EXPORT(3)								 1							     VAR_EXPORT(3)

var_export - Outputs or returns a parsable string representation of a variable

SYNOPSIS
mixed var_export (mixed $expression, [bool $return = false]) DESCRIPTION
var_export(3) gets structured information about the given variable. It is similar to var_dump(3) with one exception: the returned represen- tation is valid PHP code. PARAMETERS
o $expression - The variable you want to export. o $return - If used and set to TRUE, var_export(3) will return the variable representation instead of outputting it. RETURN VALUES
Returns the variable representation when the $return parameter is used and evaluates to TRUE. Otherwise, this function will return NULL. NOTES
Note When the $return parameter is used, this function uses internal output buffering so it cannot be used inside an ob_start(3) callback function. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.1.0 | | | | | | | Possibility to export classes and arrays con- | | | taining classes using the __set_state() magic | | | method. | | | | +--------+---------------------------------------------------+ EXAMPLES
Example #1 var_export(3) Examples <?php $a = array (1, 2, array ("a", "b", "c")); var_export($a); ?> The above example will output: array ( 0 => 1, 1 => 2, 2 => array ( 0 => 'a', 1 => 'b', 2 => 'c', ), ) <?php $b = 3.1; $v = var_export($b, true); echo $v; ?> The above example will output: 3.1 Example #2 Exporting classes since PHP 5.1.0 <?php class A { public $var; } $a = new A; $a->var = 5; var_export($a); ?> The above example will output: A::__set_state(array( 'var' => 5, )) Example #3 Using __set_state() (since PHP 5.1.0) <?php class A { public $var1; public $var2; public static function __set_state($an_array) { $obj = new A; $obj->var1 = $an_array['var1']; $obj->var2 = $an_array['var2']; return $obj; } } $a = new A; $a->var1 = 5; $a->var2 = 'foo'; eval('$b = ' . var_export($a, true) . ';'); // $b = A::__set_state(array( // 'var1' => 5, // 'var2' => 'foo', // )); var_dump($b); ?> The above example will output: object(A)#2 (2) { ["var1"]=> int(5) ["var2"]=> string(3) "foo" } NOTES
Note Variables of type resource couldn't be exported by this function. Note var_export(3) does not handle circular references as it would be close to impossible to generate parsable PHP code for that. If you want to do something with the full representation of an array or object, use serialize(3). Warning When var_export(3) exports objects, the leading backslash is not included in the class name of namespaced classes for maximum com- patibility. SEE ALSO
print_r(3), serialize(3), var_dump(3). PHP Documentation Group VAR_EXPORT(3)
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