Summary of error handling and exception triggering techniques for PHP development public accounts

Summary of error handling and exception triggering techniques for PHP public account development

Overview:
Public account development is a very hot technology in the Internet field at present, PHP As one of the commonly used development languages, it has also been widely used in public account development. However, due to the particularity and complexity of official account development, various errors and exceptions will inevitably be encountered during the development process. This article will summarize the relevant skills in PHP development public accounts from two aspects: error handling and exception triggering, and provide specific code examples.

1. Error handling skills

1. Error logging:
   In the development of official accounts, error logging is very important. You can record error information to the specified log file by setting the PHP error log path and level. For example,

error_reporting(E_ALL);
ini_set('display_errors', 'Off');
ini_set('log_errors', 'On');
ini_set('error_log', '/path/to/error/log');

After setting the error log path, you can use the error_log function to write error information to the specified log file. For example,

try {
    // Some code that may cause an error
} catch (Exception $e) {
    error_log($e->getMessage());
}

This makes it easy to track and debug errors.

2. Error page display:
   When an error occurs in the public account, the error message can be displayed to the user by setting the error handling function and customizing the error page. For example,

function handleError($errno, $errstr, $errfile, $errline) {
    $error = "Error [$errno]: $errstr in $errfile on line $errline";
    error_log($error);
    require_once('error.html');
    exit();
}

set_error_handler('handleError');

// Some code that may cause an error

In the error handling function, the error page can be customized based on the error number and error information to provide a better user experience.

2. Exception triggering skills

1. Customized exception class:
   In public account development, it is often necessary to throw custom exceptions in order to better handle exceptions. . You can create a custom exception class by inheriting PHP's Exception class. For example,

class MyException extends Exception {
    public function __construct($message = "", $code = 0, Throwable $previous = null) {
        parent::__construct($message, $code, $previous);
    }

    public function __toString() {
        return __CLASS__ . ": [{$this->code}]: {$this->message}
";
    }
}

throw new MyException("Something went wrong");

2. Exception handling:
   When handling exceptions, you can use try-catch statements to capture and handle exceptions. For example,

try {
    // Some code that may throw an exception
} catch (MyException $e) {
    // Handle MyException
} catch (Exception $e) {
    // Handle all other exceptions
}

can perform corresponding processing operations according to different types of exceptions.

Conclusion:
Through correct error handling and exception triggering techniques, the stability and reliability of public account development can be improved. When handling errors, error logs should be recorded and timely troubleshooting and repairs should be made; when handling exceptions, custom exceptions should be thrown and corresponding processing operations should be performed. By using these techniques appropriately, you can better deal with errors and anomalies in public account development.

(Note: The above code examples are only demonstration instructions, and actual application may need to be modified according to specific circumstances.)

Total word count: 684 words

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