![[Fix] strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated](https://sanjeebaryal.com.np/wp-content/uploads/2023/11/Passing-null-to-parameter-strpos-750x350.png "[Fix] strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated")
Since PHP 8.1, passing null to parameter #1 is deprecated. Example: when using strpos() to find the occurrence of the specific word in the string. In case of $value being null — the above deprecated message will appear. Fix: –
![[Fix] Creation of dynamic property is deprecated since PHP 8.2](https://sanjeebaryal.com.np/wp-content/uploads/2023/08/Creation-of-dynamic-property-750x350.png "[Fix] Creation of dynamic property is deprecated since PHP 8.2")
Since PHP 8.2, adding a new property to an object at runtime is deprecated, and such that you shouldn’t do this anymore. Example: When you do this, the property $tiems is dynamically created as untyped public properties, but in the future, you
![[Fix] deprecated: Required parameter follows optional parameter](https://sanjeebaryal.com.np/wp-content/uploads/2023/01/Required-Parameter-followed-by-optional-parameter-750x350.png "[Fix] deprecated: Required parameter follows optional parameter")
This type of error occurs in PHP 8 and higher. This means if you have a function and an optional parameter comes first and then the required param – this deprecation message triggers. Example. Here $a is an optional parameter,