Passing Variables as a Reference to the Argument of a Function : Parameters « Functions « PHP






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Passing Variables as a Reference to the Argument of a Function

<?php
  function somefunct ($somearg){
    $somearg += 3;
  }
  $othernum = 12;
  somefunct ($othernum);
  echo "$othernum","\n";
  
  somefunct (&$othernum);
  echo "$othernum","\n";  
?>








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6.Using a Function Call to Pass an Argument to a Function by Reference
7.Declaring a Function That Requires Arguments
8.Function with an Optional Argument
9.A Function with an Optional Argument
10.Accessing Function Parameters
11.All optional arguments
12.Capturing a return value
13.Changing argument values
14.Defining and Calling a two-argument function,
15.Function Arguments
16.Function with two parameters
17.Creating Functions That Take a Variable Number of Arguments
18.Creating a capitalize function with a default parameter $each
19.Default Parameters
20.Define whether a variable is passed by value or reference
21.Passing By Reference
22.Making arguments be passed by reference
23.Using Optional Parameters