What are the requirements for describing function exceptions in the PHP function documentation specification?

Exception description specifications in PHP function documentation: Format: @throws |Exception Name| Exception descriptionException Name: The fully qualified name of the exception classException description: Use complete sentences to describe the cause of the exception and avoid vague wording

PHP function document exception description specifications

In PHP function documentation, the description of exceptions should follow the following specifications:

Description format ：

@throws |Exception Name| Exception description

Exception Name：

• Exception class The fully qualified name of .
• In PHP 8.0 and above, it is allowed to use Throwable as a base class.

Exception description:

• Use complete sentences to describe the exception clearly and accurately.
• Provide as much detail as possible about the cause of the exception.
• Avoid using ambiguous or vague wording.

Practical case:

The following example demonstrates the correct format of the exception description:

/**
 * 打开一个文件。
 *
 * @param string $filename 文件名
 * @param string $mode 打开模式
 * @return resource 打开的文件指针
 *
 * @throws \Exception 文件无法打开时抛出。
 */
function fopen(string $filename, string $mode): resource
{
    // ...
    throw new \Exception("无法打开文件：$filename");
}

Note:

• The exception description should be detailed enough to facilitate developers to understand and handle the exception.
• Exception descriptions should avoid using technical terms unless they are critical to understanding the exception.
• If a function can throw multiple exceptions, a separate description should be provided for each exception.

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