Code Inspection: Non-repeatable attribute
Configure inspections: Settings | Editor | Inspections
Show intention actions: AltEnter
Reports repeated attributes without the Attribute::IS_REPEATABLE
flag in their arguments declaration.
See Attributes (php.net) for details.
Place the caret at the highlighted line and press AltEnter or click
.
Click the arrow next to the inspection you want to suppress and select the necessary suppress action.