What are the common errors and solutions in thinkphp3.2

1.404 error return

Once we enter a non-existent URL in the browser, a 404 error page will be displayed. Similarly, this situation also occurs in thinkphp3.2. If the accessed controller or method does not exist, the system will automatically redirect to a 404 error page.

Solution: Check whether the entered URL address is correct, or check whether the controller or method exists.

2.500 error return

ThinkPHP 3.2 may display a 500 error page in some cases. This is usually caused by coding or configuration errors, such as database connection failure, incomplete syntax, or duplicate definitions.

Solution: Find the error log file in the root directory of the site and review the error message to find a solution to the problem.

3. Blank page or blank block

When we visit a page in the browser, if there is no data on the page or only a blank block is displayed, then It may be caused by incorrect parameter passing or missing template files.

Solution: Check whether the parameters are passed correctly, or check whether the template file exists or whether there are syntax errors.

4. The variable is undefined or incorrectly defined

If you use undefined variables in the view file, the thinkphp3.2 system will prompt an error page. If the variables defined in the controller are inconsistent with the variables used in the view file, an error will also be returned.

Solution: Check whether the variable is correctly referenced in the view file, and check whether the variable is correctly defined in the controller.

5. Redirection problem

Redirection is a common HTTP protocol mechanism. In thinkphp3.2, the redirection operation can be achieved by calling the redirect() function. In some cases, redirect errors occur, such as redirect loops or jumping to the wrong path.

To solve this problem, you need to check the application code to find out if there is a redirection loop or syntax error, and make sure that the specified path is correct before the redirection operation can be performed.

What is thinkphp

thinkphp is a free development framework that can be used to develop front-end web pages. The earliest thinkphp was created to simplify development. Thinkphp also follows the Apache2 protocol. It was originally Evolved from Struts, we also make use of some good foreign framework patterns, use object-oriented development structures, and are compatible with many tag libraries and other patterns. It can develop and deploy applications more conveniently and quickly, and of course it is not just enterprise-level applications. , any PHP application development can benefit from the simplicity, compatibility and speed of thinkphp.

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