预定义异常-PHP手册笔记

<code><!--?php 
class Exception {
protected string $message;  // 异常消息内容
protected int $code;  // 异常代码
protected string $file;  // 抛出异常的文件名
protected int $line;  // 抛出异常在该文件的行号
public __construct([string $message = "" [, int $code = 0 [, Exception $previous = NULL]]])
final public string getMessage(void)
final public Exception getPrevious(void)
final public int getCode(void)
final public string getFile(void)
final public int getLine(void)
final public array getTrace(void)
final public string getTraceAsString(void)
public string __toString(void)
final private void __clone(void)
}</code--></code>

<code><!--?php 
class ErrorException extends Exception {
protected int $severity;  // 异常级别
public __construct([string $message = "" [, int $code = 0 [, int $severity = 1 [, string $filename = __FILE__ [, int $lineno = __LINE__ [, Exception $previous = NULL]]]]]])
final public int getSeverity(void)
}</code--></code>