PHP异常测试，示例二原创

<?php /* * 测试代码 * 主要测试异常的示例 *//*//创建可抛出一个异常的函数，示例一function checkNum($number) {    if ($number > 1) {        throw new Exception("Value must be 1 or below");    }    return true;}//在 "try" 代码块中触发异常try {    checkNum(2);    //If the exception is thrown, this text will not be shown    echo 'If you see this, the number is 1 or below';}//捕获异常catch (Exception $e) {    echo 'Message: ' . $e-&gt;getMessage();} *  *///---------------------//创建可抛出一个异常的函数，示例二function checkNum($number) {    try{        if ($number &gt; 1) {            throw new Exception("Value must be 1 or below");        }    }catch (Exception $e) {        echo 'Message: ' . $e-&gt;getMessage();    }    return true;}try{    checkNum(2);    echo ' If you see this, the number is 1 or below';}catch (Exception $e) {    echo 'Error 2 : ' . $e-&gt;getMessage();}echo "<br>It is work good.";

示例一，是网上已有的

示例二，是测试自己的想法的。