Implementation of simple graphics area calculator in PHP

This article mainly uses PHP object-oriented technology combined with front-end HTML technology to achieve simple graphics area calculation

Graphic class

// rect.class.php <？php 抽象类Shape { public $ name ; 抽象功能区（） ; 抽象函数视图（） ; 抽象函数测试（$ arr） ; }？>

Main interface

Rectangular class

Triangle Class

Related references:php中文网

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