PHP7的异常处理与旧版本相比有哪些显著变化？

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PHP7中异常与错误处理及与先前版本对比简单示例：phpECHO PHP_VERSION.PHP_EOL;function add ($left, $right) { return $left + $right;}try { echo add(left, right);} catch (Exception $e) { // 处理异常} catch (Error $e) { // 处理错误}

先上代码

ECHO PHP_VERSION.PHP_EOL; function add (int $left,int $right){ return $left+$right; } try { echo add('left', 'right'); } catch (Exception $e) { // Handle exception } catch (Error $e) { // Clearly a different type of object // Log error and end gracefully var_dump($e->getMessage()); } echo PHP_EOL."helloword".PHP_EOL;

PHP v5.6.1结果

5.6.1 PHP Catchable fatal error: Argument 1 passed to add() must be an instance of int, string given, called in C:\usertb\shareubuntu\Workerman\fortest.php on line 8 and defined in C:\usertb\shareubuntu\Workerman\fortest.php on line 3 Catchable fatal error: Argument 1 passed to add() must be an instance of int, string given, called in C:\usertb\shareubuntu\Workerman\fortest.php on line 8 and defined in C:\usertb\shareubuntu\Workerman\fortest.php on line 3 [Finished in 0.0s]

PHP v7.0.15结果

7.0.15-0ubuntu0.16.04.4 string(131) "Argument 1 passed to add() must be of the type integer, string given, called in /home/tb/win10share/Workerman/fortest.php on line 8" helloword

区别

在于后者可以捕获fatal error，并且可以正常输出helloword

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