Capturing a return value : Parameters « Functions « PHP






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  3. Parameters

Capturing a return value

 
<?
function countdown($top) {
    while ($top > 0) {
        print "$top..";
        $top--;
    }
    print "boom!\n";
}

$counter = 5;
countdown($counter);
print "Now, counter is $counter";
?>








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7.Using a Function Call to Pass an Argument to a Function by Reference
8.Declaring a Function That Requires Arguments
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10.A Function with an Optional Argument
11.Accessing Function Parameters
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13.Changing argument values
14.Defining and Calling a two-argument function,
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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
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