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--- uphp:functions:call_user_func [2017/04/06 14:54]
jeff
+++ uphp:functions:call_user_func [2021/09/13 05:57]
@@ Line 1: / Line 1: @@
-======call_user_func======
-<badge>WMPRO, WMMINI FW >= 1.0</badge> <badge>WMMEGA FW >= 2.0</badge>
-Call a user defined function with optional parameters
-====Description====
-<well size="sm">
-<html>
-<span style="font-size:125%;color:green">mixed
-<span style="color:black">
-</html>
-[[call_user_func]] (
-<html>
-<span style="color:green">string
-<span style="color:blue">$function_name
-<span style="color:black">[,
-<span style="color:green">mixed
-<span style="color:blue">$parameters
-<span style="color:black">... ] )
-</html>
-</well>
-Return result as defined by the user function
-====Parameters====
-<html><b><span style="color:blue">$function_name<span style="color:black"></b></html>:  <html><b><span style="color:green">String<span style="color:black"></b></html> containing the name of the user function to call
-<html><b><span style="color:blue">$parameters<span style="color:black"></b></html>:  Optional parameter(s) to pass to the function
-====Return Value====
-Any type depending on the way the function is defined
-====Example====
-<code php>
-<?
-  function my_add($x,$y) {
-    return $x+$y;
-  }
-  $result=call_user_func("my_add",1,3);
-  print($result); // result is 4
-?>
-</code>
-====See Also====
-[[function_exists()]] - Check if a function exists (native or custom)
-[[uphp:statements:function]] - Define a function
-[[uphp:statements:return]] - Return program control to the calling module
-====Additional Information====
-User defined functions can take many different forms, and it is not necessary to use [[call_user_func()]] to execute a function unless a direct return value is needed.
-If used within a function, the [[uphp:statements:return]] statement immediately ends execution of the function, and returns its argument as the value of the function call.

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