php

PHP error "Notice: Undefined index ..." [Solved]

Submitted by oretnom23 on
PHP error "Notice: Undefined index ..." [Solved]

This tutorial delves into the exploration of the cause and the solution of the PHP Notice that says "Notice: Undefined index ...". Here, I will explain why this kind of notice or error occurs in PHP. I will be providing a simple PHP snippet the illustrate the occurrence of the said error. Also, I will provide the snippets that averts the error.

How to Fix "Warning: Trying to access array offset on value of type null" error in PHP

Submitted by oretnom23 on
How to Fix "Warning: Trying to access array offset on value of type null" error in PHP

If you are facing a "Trying to access array offset on value of type null" warning or error in PHP, this article will help you understand why this error occurs in PHP Projects or Scripts. Here, I will be providing sample snippets that simulate this PHP Warning and its solution to show you how to fix it and prevent it to occur in the future.

How to fix the "PHP Warning: foreach() argument must be of type array|object ..." error in PHP

Submitted by oretnom23 on
How to fix the "PHP Warning:  foreach() argument must be of type array|object ..." error in PHP

If you are new to PHP Language and currently facing a PHP Warning that says "PHP Warning: foreach() argument must be of type array|object ...", this article can help you to understand about this, why this error occurs, and how to fix this.

How to Fix the "Fatal Error: Cannot Redeclare class" PHP Error

Submitted by oretnom23 on
How to Fix the "Fatal Error: Cannot Redeclare class" PHP Error

If you are facing a PHP Error that says "Fatal Error: Cannot Redeclare class" or "Fatal Error: Cannot declare class ..., because the name is already in use ...", this article will help you fix or solve that and give you knowledge on how you can prevent this PHP error to occur in the future.

How to fix the PHP "Illegal offset type" error

Submitted by oretnom23 on
How to fix the PHP "Illegal offset type" error

If you are currently facing a "Fatal error: Uncaught TypeError: Illegal offset type in ..." error in your PHP code or script, this article can help you to solve this kind of PHP error.

PHP's Illegal offset Type error occurs when you are trying to use a full object or array as the key of an array. PHP array keys can only be a string or integer type.

Example #1

Let's assume that we the following PHP code:

How to fix the "Warning: Cannot modify header information: headers already sent ..." error in PHP

Submitted by oretnom23 on
How to fix the "Warning: Cannot modify header information: headers already sent ..." error in PHP

If you are facing a PHP error "Warning: Cannot modify header information - headers already sent by ..." this article might help you to solve this. This article aims to provide students or beginners with a reference for solving some PHP errors they are facing and to enhance their knowledge to avoid this kind of error.