How-to articles, tricks, and solutions about PHP

The HTTP error 413 Request Entity Too Large indicates that the server is unable to process the request because the request payload (the body of the request) is larger than the server is able to handle.

To set the php.validate.executablePath in Visual Studio Code (VS Code) when running PHP inside a Docker container, you can follow these steps:

It is possible to convert a PHP script into a standalone Windows executable using tools such as PHPCompiler by Bambalam or PHPC.exe.

There are several ways to merge PDF files using PHP.

There are a few different ways you can embed PHP code inside HTML.

You can retrieve a list of products in WooCommerce using the get_products() function.

In Apache, the location for session files is determined by the session.save_path configuration directive in your php.ini file.

If you are seeing this error message in PHP, it may be caused by a mismatch between the version of the PHP client library that you are using and the version of the API that it is trying to access.

To create an HTML form that submits an array as a form parameter, you can use the name attribute of the input element and give it a value in the form of an array.

In PHP, you can use the unserialize function to unserialize a serialized string.

You can use the mysqli_num_rows() function to count the number of rows that a MySQL query returned in PHP.

To enable Cross-Origin Resource Sharing (CORS) in an .htaccess file, you can add the following lines:

In Laravel, you can use the leftJoin method on a query builder instance to perform a left join, and then use the whereNull method to only include records where a column from the right-hand table is null:

Yes, you can add values to a request array in Laravel by using the merge method on the request object.

This error message typically indicates that there was a problem trying to establish a connection to the MySQL server.

The bcmath extension is typically installed by default in most PHP installations.

To remove the last comma from a string in PHP, you can use the rtrim function.

This error message can have several causes.

To get an environment value in a PHP controller, you can use the getenv function.

To make the output of var_dump() more readable, you can use the following approaches:

To upload a file using cURL in PHP, you can use the curl_setopt function to specify the CURLOPT_POSTFIELDS option with the file data.

To return a proper success/error message for jQuery.ajax() using PHP, you can do the following:

To get xdebug to show the full contents of an object or array when using the var_dump function, you can use the xdebug.var_display_max_depth setting in your php.ini file.

PHPSESSID is a session cookie that is used to identify a user's session on a website.

To retrieve the last insert id in CodeIgniter using the Active Record class, you can use the $this->db->insert_id() method.