parameter-passing

I need to pass a function as a parameter in Bash. For example, the following code: function x() { echo "Hello world" } function around() { echo "before" eval $1 echo "after" } around x Should output: before Hello world after I know eval is not correct in that context but that's just an example :) Any idea? If you don't need anything fancy like delaying the evaluation of the function name or its arguments, you don't need eval : function x() { echo "Hello world"; } function around() { echo before; $1; echo after; } around x does what you want. You can even pass the function and its arguments

I'm experiencing a problem when calling a JavaScript function inside PHP code and trying to pass my PHP variables as parameters into the function. While it seems really simple to me, I can't figure it out by trying different syntax. Here is a sample code which can demonstrate the problem: <?PHP $var1 = 0; $var2 = 1; $var3 = 2; echo '<script type="text/javascript">functionName($var1, $var2, $var3);</script>'; ?> If I try to pass constants (e.g. "123") the function gets called and the value is passed, but when trying to pass the PHP variable, the function doesn't get called at all. How can I do

Let's say I have this function: CREATE OR REPLACE FUNCTION test_function(character varaying) RETURNS integer AS $BODY$ DECLARE some_integer integer; begin Select column2 from test_table where column1 in ($1) into some_integer; end; Return some_integer; $BODY$ LANGUAGE plpgsql VOLATILE COST 100; And I want to call it like this: Select * from test_function ('data1', 'data2','data3'); Of course, it cannot be done this way, because Postgres tries to find function with this name and three parameter which doesn't exists. I tried to put quotes around commas but in that case parameter is interpreted

The case is this, I have two different forms from the same solution/project. What I need to do is to extract the value of a label in Form A and load it into Form B. As much as possible, I am staying away from using this code since it will only conflict my whole program: FormB myForm = new FromB(label.Text); myForm.ShowDialog(); What I am trying right now is a class with a property of get and set for the value I wanted to pass. However, whenever I access the get method from FormB, it returns a blank value. I hope somebody can help me with this. Any other ways to do this is extremely appreciated

I want to use a PHP variable as a javascript variable - specifically I want to user the PHP variable session_id(); and use this as a javascript variable. <?php $php_var = session_id(); ?> <script language="JavaScript" type="text/javascript"> js_var = <?php echo($php_var ?>; </script> This seems like it should work for me but it doesnt can anyone suggest a better way? The best method i can think of looks like this: <?php $php_var = session_id(); ?> <script type="text/javascript"> var js_var = <?php echo json_encode($php_var); ?>; </script> PHP's json_encode -function is always producing valid