Emitted when a supplied function/method argument is incompatible with the method signature or docblock one.
<?php
class A {}
function foo(A $a) : void {}
/**
* @param string $s
*/
function callFoo($s) : void {
foo($s);
}Calling functions with incorrect values will cause a fatal error at runtime.
Sometimes this message can just be the result of an incorrect docblock.
You can fix by correcting the docblock, or converting to a function signature:
<?php
class A {}
function foo(A $a) : void {}
function callFoo(A $a) : void {
foo($a);
}