Passing an Argument to a Function by Value : Parameters « Functions « PHP






Passing an Argument to a Function by Value




<html>
<head>
<title>Passing an Argument to a Function by Value</title>
</head>
<body>
<?php
function addFive( $num ) {
     $num += 5;
}
$orignum = 20;
addFive( $orignum );
print( $orignum );
?>
</body>
</html>


           
       








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7.Declaring a Function That Requires Arguments
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14.Defining and Calling a two-argument function,
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22.Making arguments be passed by reference
23.Using Optional Parameters