php运行实例（demo_php_function4）-搜寻教程库

代码示例：（标识：demo_php_function4）

<!DOCTYPE html>
<html>
<body>

<?php
function setHeight($minheight=50) {
   echo "高度是：$minheight <br>";
}

setHeight(350);
setHeight();
setHeight(135);
setHeight(80);
?>

</body>
</html>

运行结果：