Last modified: 16 May 2022

Reports the variables that are passed by reference to a function/method but are not modified in the function/method body. In such cases, the & in parameter's declaration can be safely removed.

See Passing by Reference (php.net) for details.

Suppress an inspection in the editor

1. Place the caret at the highlighted line and press AltEnter or click .

2. Click the arrow next to the inspection you want to suppress and select the necessary suppress action.