Fix preg_match calls

Author: emodric

bundle/Command/BaseMultiprocessCommand.php

@@ -418,7 +418,7 @@ protected function getNumberOfCPUCores(): int
         } elseif (($process = @popen('sysctl -a', 'rb')) !== false) {
             // *nix (Linux, BSD and Mac)
             $output = (string) stream_get_contents($process);
-            if (preg_match('/hw.ncpu: (\d+)/', $output, $matches) !== false) {
+            if (preg_match('/hw.ncpu: (\d+)/', $output, $matches) === 1) {
                 $cores = (int) $matches[1];
             }
             pclose($process);

bundle/OpenGraph/Handler/SiteImage.php

@@ -54,7 +54,7 @@ public function getMetaTags(string $tagName, array $params = []): array
 
         $request = $this->requestStack->getCurrentRequest();
 
-        if ($request instanceof Request && preg_match('/^https?:\/\//', $siteImage) === false) {
+        if ($request instanceof Request && preg_match('/^https?:\/\//', $siteImage) !== 1) {
             $siteImage = $request->getUriForPath('/' . ltrim($siteImage, '/'));
         }
 

bundle/Templating/Twig/Extension/SiteRuntime.php

@@ -107,7 +107,7 @@ public function groupFields(Content $content, string $prefix): array
         $groupedFields = [];
 
         foreach ($content->fields as $field) {
-            if (preg_match($regex, $field->fieldDefIdentifier, $matches) !== false) {
+            if (preg_match($regex, $field->fieldDefIdentifier, $matches) === 1) {
                 $groupedFields[$matches[self::GROUP_FIELDS_GROUP]][$matches[self::GROUP_FIELDS_FIELD]] = $field;
             }
         }