PHP 8 - fix signatures with multiple variants

Author: ondrejmirtes

src/Reflection/SignatureMap/Php8SignatureMapProvider.php

@@ -124,10 +124,6 @@ public function getMethodSignature(string $className, string $methodName, ?\Refl
 			return $this->functionSignatureMapProvider->getMethodSignature($className, $methodName, $reflectionMethod, $variant);
 		}
 
-		if ($this->functionSignatureMapProvider->hasMethodSignature($className, $methodName, 1)) {
-			return $this->functionSignatureMapProvider->getMethodSignature($className, $methodName, $reflectionMethod, $variant);
-		}
-
 		$methodNode = $this->findMethodNode($className, $methodName);
 		if ($methodNode === null) {
 			return $this->functionSignatureMapProvider->getMethodSignature($className, $methodName, $reflectionMethod, $variant);
@@ -157,10 +153,6 @@ public function getFunctionSignature(string $functionName, ?string $className, i
 			return $this->functionSignatureMapProvider->getFunctionSignature($functionName, $className, $variant);
 		}
 
-		if ($this->functionSignatureMapProvider->hasFunctionSignature($functionName, 1)) {
-			return $this->functionSignatureMapProvider->getFunctionSignature($functionName, $className, $variant);
-		}
-
 		$stubFile = self::DIRECTORY . '/' . Php8StubsMap::FUNCTIONS[$lowerName];
 		$nodes = $this->fileNodesFetcher->fetchNodes($stubFile);
 		$functions = $nodes->getFunctionNodes();

tests/PHPStan/Rules/Functions/CallToFunctionParametersRuleTest.php

@@ -470,4 +470,9 @@ public function testNamedArguments(): void
 		$this->analyse([__DIR__ . '/data/named-arguments.php'], $errors);
 	}
 
+	public function testBug4514(): void
+	{
+		$this->analyse([__DIR__ . '/data/bug-4514.php'], []);
+	}
+
 }

tests/PHPStan/Rules/Functions/data/bug-4514.php

@@ -0,0 +1,6 @@
+<?php declare(strict_types = 1);
+
+$im = imagecreatefromwebp('');
+if (false !== $im) {
+	imagejpeg($im);
+}