PHP 抛出异常嵌套用法详解编程语言

<?php 
try { 
 
    dsss(); 
} catch (Exception $e) { 
     
    echo $e->getMessage(); 
    // die(); // 终止异常 
} 
function dsss() 
{ 
    try { 
        $num1 = 3; 
        $num2 = 0; 
        if ($num2 == 0) { 
            throw new Exception("11321"); 
        } else { 
            $res = $num1 / $num2; 
        } 
 
    } catch (Exception $e) { 
        throw $e; 
    } 
} 
?>