diff --git a/ext/phar/phar.c b/ext/phar/phar.c
index c4eed6b60e2c..d2713c2a6f65 100644
--- a/ext/phar/phar.c
+++ b/ext/phar/phar.c
@@ -1965,7 +1965,7 @@ int phar_detect_phar_fname_ext(const char *filename, size_t filename_len, const
 	*ext_str = NULL;
 	*ext_len = 0;
 
-	if (!filename_len || filename_len == 1) {
+	if (filename_len <= 1) {
 		return FAILURE;
 	}
 
diff --git a/ext/phar/phar_object.c b/ext/phar/phar_object.c
index b009c0347ce6..47a4ca541d12 100644
--- a/ext/phar/phar_object.c
+++ b/ext/phar/phar_object.c
@@ -496,7 +496,7 @@ PHP_METHOD(Phar, mount)
 			zend_throw_exception_ex(phar_ce_PharException, 0, "Mounting of %s to %s within phar %s failed", path, actual, arch);
 		}
 
-		if (entry && path && path == entry) {
+		if (entry && path == entry) {
 			efree(entry);
 		}
 
diff --git a/ext/phar/util.c b/ext/phar/util.c
index 50a2e7a66272..edd10dc3837a 100644
--- a/ext/phar/util.c
+++ b/ext/phar/util.c
@@ -1257,7 +1257,7 @@ phar_entry_info *phar_get_entry_info_dir(phar_archive_data *phar, char *path, si
 	}
 
 	if (is_dir) {
-		if (!path_len || path_len == 1) {
+		if (path_len <= 1) {
 			return NULL;
 		}
 		path_len--;
diff --git a/sapi/fpm/status.html.in b/sapi/fpm/status.html.in
index d3b6d5efd3e5..b87a446f59f6 100644
--- a/sapi/fpm/status.html.in
+++ b/sapi/fpm/status.html.in
@@ -215,7 +215,7 @@
 					doc_rate.disabled = false;
 				} else {
 					delay = parseInt(doc_rate.value);
-					if (!delay || delay < 1) {
+					if (isNaN(delay) || delay < 1) {
 						doc_status.innerHTML = "Not valid 'refresh' value";
 						return;
 					}