Common PHP Errors and How to Fix Them
Browse all documented PHP errors with detailed explanations, root causes, and step-by-step fixes.
Route collection name collision between 'admin' and 'user' in Laravel framework
In Laravel, route names must be unique. If two route collections have the same name, it can lead to unexpected behavior …
Call to a member function fetchAll() on null in /var/www/html/database.php on li
This error occurs when a developer tries to call a method on a null or non-object variable, which in this case is a resu…
SQLSTATE[HY000] [2002] A connection attempt failed because the connected party d
This error occurs when the PHP script tries to establish a connection to the database, but the database server does not …
Route resource 'users' not defined in the application. Did you forget to call th
This error occurs when the Laravel framework is unable to find a route definition for the specified resource.…
Uncaught TypeError: Argument 1 passed to Laravel\Illuminate\Routing\Route::curre
This error occurs when the Laravel framework expects a specific type of object but receives an object of a different typ…
Attempt to assign property of non-object in /var/www/html/controllers/UserContro
This error occurs when you're trying to access a non-object property using object syntax. It could be due to a failed da…
syntax error, unexpected 'if' (T_IF), expecting ',' or ';' on line 10
This error occurs when PHP encounters a syntax that is not allowed in the current context. In this case, the 'if' statem…
SQLSTATE[HY000] [2002] Connection timed out: Unable to connect to the database s
This error occurs when the database server is not responding within the specified time limit, usually due to a network i…
SQLSTATE[22007]: Invalid datetime format: 1292 Truncated incorrect datetime valu
This error occurs when the date or time format used in a MySQL query does not match the format specified in the database…
Cannot pass string by reference as a wrapper in /var/www/html/api.php on line 12
This error occurs when attempting to use a string as a reference type, which is not allowed in PHP. It typically happens…
The controller method 'login' does not exist in file '/var/www/html/app/Controll
This error occurs when the framework is unable to find a controller method that matches the requested action. This is of…
Cannot send headers. Output started at /var/www/html/index.php:123
This error occurs when PHP tries to send HTTP headers after the output has already started. In PHP, headers must be sent…
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