Passing an Argument to a Function by Value
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<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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