function as an argument

[jimfog]

I am trying to put a function as an argument of another function bit the IDE(Netbeans) highlights it as an error-I cannot understand why. Here is the code:

function output_header($admin=false,output_header_list()) { ?><div id="header">         <div><a href="http://localhost/Appointments/Administrator/"><img src="Images/logo.png" width="307" height="32" /></a></div>  </div><?php

What can be wrong here? output_header_list is the function I am trying to use as an argument.

[Ingolme]

That syntax is invalid. You can pass the return value of a function to the function when calling it, but you can use it in the function declaration. Optional parameters have to go at the end of the parameter list. This would be valid:

// Function declarationfunction output_header($header_list, $admin=false) {  // ...}// Function calloutput_header(output_header_list(), false);

[jimfog]

I fixed it.