diff --git a/ext/standard/array.c b/ext/standard/array.c
index 213402c7819a..6219c8f9eb4d 100644
--- a/ext/standard/array.c
+++ b/ext/standard/array.c
@@ -557,7 +557,7 @@ static bucket_compare_func_t php_get_data_compare_func_unstable(zend_long sort_t
 
 PHPAPI zend_long php_count_recursive(HashTable *ht) /* {{{ */
 {
-	zend_long cnt = 0;
+	zend_long cnt;
 	zval *element;
 
 #ifdef ZEND_CHECK_STACK_LIMIT
diff --git a/ext/standard/dns.c b/ext/standard/dns.c
index b3fcc1d236af..8aad30e468f6 100644
--- a/ext/standard/dns.c
+++ b/ext/standard/dns.c
@@ -822,7 +822,7 @@ PHP_FUNCTION(dns_get_record)
 	HEADER *hp;
 	querybuf answer = {0};
 	uint8_t *cp = NULL, *end = NULL;
-	int n, qd, an, ns = 0, ar = 0;
+	int n, qd, an, ns, ar;
 	int type, first_query = 1, store_results = 1;
 	bool raw = 0;
 
diff --git a/ext/standard/exec.c b/ext/standard/exec.c
index 5c9e5c6076a8..bc0cc1cb8a05 100644
--- a/ext/standard/exec.c
+++ b/ext/standard/exec.c
@@ -112,7 +112,7 @@ PHPAPI int php_exec(int type, const char *cmd, zval *array, zval *return_value)
 	FILE *fp;
 	char *buf;
 	int pclose_return;
-	char *b, *d=NULL;
+	char *b;
 	php_stream *stream;
 	size_t buflen, bufl = 0;
 #if PHP_SIGCHILD
@@ -184,9 +184,6 @@ PHPAPI int php_exec(int type, const char *cmd, zval *array, zval *return_value)
 		signal(SIGCHLD, sig_handler);
 	}
 #endif
-	if (d) {
-		efree(d);
-	}
 	return pclose_return;
 err:
 	pclose_return = -1;
diff --git a/ext/standard/file.c b/ext/standard/file.c
index b52e5ba9525f..0f799759451b 100644
--- a/ext/standard/file.c
+++ b/ext/standard/file.c
@@ -479,7 +479,6 @@ PHP_FUNCTION(file_put_contents)
 		}
 		mode[0] = 'c';
 	}
-	mode[2] = '\0';
 
 	stream = php_stream_open_wrapper_ex(filename, mode, ((flags & PHP_FILE_USE_INCLUDE_PATH) ? USE_PATH : 0) | REPORT_ERRORS, NULL, context);
 	if (stream == NULL) {
diff --git a/ext/standard/filestat.c b/ext/standard/filestat.c
index 13478b6f5c31..66ceacc601ec 100644
--- a/ext/standard/filestat.c
+++ b/ext/standard/filestat.c
@@ -536,7 +536,6 @@ PHP_FUNCTION(chown)
 #ifdef HAVE_LCHOWN
 PHP_FUNCTION(lchown)
 {
-	RETVAL_TRUE;
 	php_do_chown(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
 }
 #endif
diff --git a/ext/standard/ftp_fopen_wrapper.c b/ext/standard/ftp_fopen_wrapper.c
index cf529e40085b..17521d4c9fa5 100644
--- a/ext/standard/ftp_fopen_wrapper.c
+++ b/ext/standard/ftp_fopen_wrapper.c
@@ -545,7 +545,7 @@ php_stream * php_stream_url_wrap_ftp(php_stream_wrapper *wrapper, const char *pa
 		/* Append */
 		memcpy(tmp_line, "APPE", sizeof("APPE"));
 	}
-	php_stream_printf(stream, "%s %s\r\n", tmp_line, (resource->path != NULL ? ZSTR_VAL(resource->path) : "/"));
+	php_stream_printf(stream, "%s %s\r\n", tmp_line, ZSTR_VAL(resource->path));
 
 	/* open the data channel */
 	if (hoststart == NULL) {
@@ -734,7 +734,7 @@ static php_stream * php_stream_ftp_opendir(php_stream_wrapper *wrapper, const ch
 		goto opendir_errexit;
 	}
 
-	php_stream_printf(stream, "NLST %s\r\n", (resource->path != NULL ? ZSTR_VAL(resource->path) : "/"));
+	php_stream_printf(stream, "NLST %s\r\n", ZSTR_VAL(resource->path));
 
 	result = GET_FTP_RESULT(stream);
 	if (result != 150 && result != 125) {
@@ -800,7 +800,7 @@ static int php_stream_ftp_url_stat(php_stream_wrapper *wrapper, const char *url,
 	}
 
 	ssb->sb.st_mode = 0644;									/* FTP won't give us a valid mode, so approximate one based on being readable */
-	php_stream_printf(stream, "CWD %s\r\n", (resource->path != NULL ? ZSTR_VAL(resource->path) : "/")); /* If we can CWD to it, it's a directory (maybe a link, but we can't tell) */
+	php_stream_printf(stream, "CWD %s\r\n", ZSTR_VAL(resource->path)); /* If we can CWD to it, it's a directory (maybe a link, but we can't tell) */
 	result = GET_FTP_RESULT(stream);
 	if (result < 200 || result > 299) {
 		ssb->sb.st_mode |= S_IFREG;
@@ -816,7 +816,7 @@ static int php_stream_ftp_url_stat(php_stream_wrapper *wrapper, const char *url,
 		goto stat_errexit;
 	}
 
-	php_stream_printf(stream, "SIZE %s\r\n", (resource->path != NULL ? ZSTR_VAL(resource->path) : "/"));
+	php_stream_printf(stream, "SIZE %s\r\n", ZSTR_VAL(resource->path));
 	result = GET_FTP_RESULT(stream);
 	if (result < 200 || result > 299) {
 		/* Failure either means it doesn't exist
@@ -831,7 +831,7 @@ static int php_stream_ftp_url_stat(php_stream_wrapper *wrapper, const char *url,
 		ssb->sb.st_size = atoi(tmp_line + 4);
 	}
 
-	php_stream_printf(stream, "MDTM %s\r\n", (resource->path != NULL ? ZSTR_VAL(resource->path) : "/"));
+	php_stream_printf(stream, "MDTM %s\r\n", ZSTR_VAL(resource->path));
 	result = GET_FTP_RESULT(stream);
 	if (result == 213) {
 		char *p = tmp_line + 4;
@@ -920,12 +920,6 @@ static int php_stream_ftp_unlink(php_stream_wrapper *wrapper, const char *url, i
 		goto unlink_errexit;
 	}
 
-	if (resource->path == NULL) {
-		php_stream_wrapper_warn(wrapper, context, options, InvalidPath,
-			"Invalid path provided in %s", url);
-		goto unlink_errexit;
-	}
-
 	/* Attempt to delete the file */
 	php_stream_printf(stream, "DELE %s\r\n", ZSTR_VAL(resource->path));
 
@@ -1051,12 +1045,6 @@ static int php_stream_ftp_mkdir(php_stream_wrapper *wrapper, const char *url, in
 		goto mkdir_errexit;
 	}
 
-	if (resource->path == NULL) {
-		php_stream_wrapper_warn(wrapper, context, options, InvalidPath,
-			"Invalid path provided in %s", url);
-		goto mkdir_errexit;
-	}
-
 	if (!recursive) {
 		php_stream_printf(stream, "MKD %s\r\n", ZSTR_VAL(resource->path));
 		result = GET_FTP_RESULT(stream);
@@ -1140,12 +1128,6 @@ static int php_stream_ftp_rmdir(php_stream_wrapper *wrapper, const char *url, in
 		goto rmdir_errexit;
 	}
 
-	if (resource->path == NULL) {
-		php_stream_wrapper_warn(wrapper, context, options, InvalidPath,
-			"Invalid path provided in %s", url);
-		goto rmdir_errexit;
-	}
-
 	php_stream_printf(stream, "RMD %s\r\n", ZSTR_VAL(resource->path));
 	result = GET_FTP_RESULT(stream);
 
diff --git a/ext/standard/http.c b/ext/standard/http.c
index eee1018672bd..57942bb312d6 100644
--- a/ext/standard/http.c
+++ b/ext/standard/http.c
@@ -145,9 +145,6 @@ PHPAPI void php_url_encode_hash_ex(HashTable *ht, smart_str *formstr,
 			if (ZSTR_VAL(key)[0] == '\0' && type != NULL) {
 				const char *tmp;
 				zend_unmangle_property_name_ex(key, &tmp, &prop_name, &prop_len);
-			} else {
-				prop_name = ZSTR_VAL(key);
-				prop_len = ZSTR_LEN(key);
 			}
 		} else {
 			prop_name = NULL;
diff --git a/ext/standard/http_fopen_wrapper.c b/ext/standard/http_fopen_wrapper.c
index 4a0f95062bcd..a699c1ea99ea 100644
--- a/ext/standard/http_fopen_wrapper.c
+++ b/ext/standard/http_fopen_wrapper.c
@@ -157,7 +157,7 @@ static bool php_stream_http_response_header_trim(char *http_header_line,
 		size_t *http_header_line_length)
 {
 	char *http_header_line_end = http_header_line + *http_header_line_length - 1;
-	while (http_header_line_end >= http_header_line && 
+	while (http_header_line_end >= http_header_line &&
 			(*http_header_line_end == '\n' || *http_header_line_end == '\r')) {
 		http_header_line_end--;
 	}
@@ -985,7 +985,7 @@ static php_stream *php_stream_url_wrap_http_ex(php_stream_wrapper *wrapper,
 			} else {
 				last_line = false;
 			}
-			
+
 			if (last_header_line_str != NULL) {
 				/* Parse last header line. */
 				last_header_line_str = php_stream_http_response_headers_parse(wrapper, stream,
@@ -1072,8 +1072,7 @@ static php_stream *php_stream_url_wrap_http_ex(php_stream_wrapper *wrapper,
 							}
 						}
 						s[1] = '\0';
-						if (resource->path &&
-							ZSTR_VAL(resource->path)[0] == '/' &&
+						if (ZSTR_VAL(resource->path)[0] == '/' &&
 							ZSTR_VAL(resource->path)[1] == '\0') {
 							spprintf(&loc_path, 0, "%s%s", ZSTR_VAL(resource->path), header_info.location);
 						} else {
diff --git a/ext/standard/image.c b/ext/standard/image.c
index 7ce6767126bf..041cde9f0f6f 100644
--- a/ext/standard/image.c
+++ b/ext/standard/image.c
@@ -229,8 +229,6 @@ static struct php_gfxinfo *php_handle_swc(php_stream * stream)
 			php_swf_get_bits (b, 5, bits)) / 20;
 		result->height = (php_swf_get_bits (b, 5 + (3 * bits), bits) -
 			php_swf_get_bits (b, 5 + (2 * bits), bits)) / 20;
-	} else {
-		result = NULL;
 	}
 
 	efree (b);
diff --git a/ext/standard/pack.c b/ext/standard/pack.c
index 1da93228f71f..dff50340abcd 100644
--- a/ext/standard/pack.c
+++ b/ext/standard/pack.c
@@ -1287,11 +1287,7 @@ PHP_FUNCTION(unpack)
 							x = php_pack_reverse_int64(x);
 						}
 
-						if (type == 'q') {
-							v = (int64_t) x;
-						} else {
-							v = x;
-						}
+						v = x;
 
 						ZVAL_LONG(&val, v);
 						break;
diff --git a/ext/standard/pageinfo.c b/ext/standard/pageinfo.c
index 66ba0da5f158..10a787bbd178 100644
--- a/ext/standard/pageinfo.c
+++ b/ext/standard/pageinfo.c
@@ -44,9 +44,7 @@
 /* {{{ php_statpage */
 PHPAPI void php_statpage(void)
 {
-	zend_stat_t *pstat = NULL;
-
-	pstat = sapi_get_stat();
+	zend_stat_t *pstat = sapi_get_stat();
 
 	if (BG(page_uid)==-1 || BG(page_gid)==-1) {
 		if(pstat) {
diff --git a/ext/standard/password.c b/ext/standard/password.c
index a28ceb7e0ced..c88c9e3e5ff1 100644
--- a/ext/standard/password.c
+++ b/ext/standard/password.c
@@ -46,7 +46,7 @@ void php_password_algo_unregister(const char *ident) {
 
 static int php_password_salt_to64(const char *str, const size_t str_len, const size_t out_len, char *ret) /* {{{ */
 {
-	size_t pos = 0;
+	size_t pos;
 	zend_string *buffer;
 	if ((int) str_len < 0) {
 		return FAILURE;
@@ -101,7 +101,7 @@ static zend_string* php_password_make_salt(size_t length) /* {{{ */
 }
 /* }}} */
 
-static zend_string* php_password_get_salt(zval *unused_, size_t required_salt_len, HashTable *options) {
+static zend_string* php_password_get_salt(size_t required_salt_len, HashTable *options) {
 	if (options && zend_hash_str_exists(options, "salt", sizeof("salt") - 1)) {
 		php_error_docref(NULL, E_WARNING, "The \"salt\" option has been ignored, since providing a custom salt is no longer supported");
 	}
@@ -194,7 +194,7 @@ static zend_string* php_password_bcrypt_hash(const zend_string *password, zend_a
 	}
 
 	hash_format_len = snprintf(hash_format, sizeof(hash_format), "$2y$%02" ZEND_LONG_FMT_SPEC "$", cost);
-	if (!(salt = php_password_get_salt(NULL, Z_UL(22), options))) {
+	if (!(salt = php_password_get_salt(Z_UL(22), options))) {
 		return NULL;
 	}
 	ZSTR_VAL(salt)[ZSTR_LEN(salt)] = 0;
@@ -303,7 +303,7 @@ static zend_string *php_password_argon2_hash(const zend_string *password, zend_a
 	size_t memory_cost = PHP_PASSWORD_ARGON2_MEMORY_COST;
 	size_t threads = PHP_PASSWORD_ARGON2_THREADS;
 	size_t encoded_len;
-	int status = 0;
+	int status;
 
 	if (options && (option_buffer = zend_hash_str_find(options, "memory_cost", sizeof("memory_cost")-1)) != NULL) {
 		memory_cost = zval_get_long(option_buffer);
@@ -332,7 +332,7 @@ static zend_string *php_password_argon2_hash(const zend_string *password, zend_a
 		return NULL;
 	}
 
-	if (!(salt = php_password_get_salt(NULL, Z_UL(16), options))) {
+	if (!(salt = php_password_get_salt(Z_UL(16), options))) {
 		return NULL;
 	}
 
diff --git a/ext/standard/streamsfuncs.c b/ext/standard/streamsfuncs.c
index d544e8bf5f0f..32f8968903e4 100644
--- a/ext/standard/streamsfuncs.c
+++ b/ext/standard/streamsfuncs.c
@@ -249,9 +249,7 @@ PHP_FUNCTION(stream_socket_server)
 
 	if (stream == NULL) {
 		php_error_docref(NULL, E_WARNING, "Unable to connect to %s (%s)", host, errstr == NULL ? "Unknown error" : ZSTR_VAL(errstr));
-	}
 
-	if (stream == NULL) {
 		if (zerrno) {
 			ZEND_TRY_ASSIGN_REF_LONG(zerrno, err);
 		}
diff --git a/ext/standard/string.c b/ext/standard/string.c
index 2d868513e4ad..87b597dace02 100644
--- a/ext/standard/string.c
+++ b/ext/standard/string.c
@@ -753,7 +753,6 @@ PHP_FUNCTION(wordwrap)
 	if (breakchar_len == 1 && !docut) {
 		newtext = zend_string_init(ZSTR_VAL(text), ZSTR_LEN(text), 0);
 
-		laststart = lastspace = 0;
 		for (current = 0; current < (zend_long)ZSTR_LEN(text); current++) {
 			if (ZSTR_VAL(text)[current] == breakchar[0]) {
 				laststart = lastspace = current + 1;
@@ -785,7 +784,6 @@ PHP_FUNCTION(wordwrap)
 		/* now keep track of the actual new text length */
 		newtextlen = 0;
 
-		laststart = lastspace = 0;
 		for (current = 0; current < (zend_long)ZSTR_LEN(text); current++) {
 			if (chk == 0) {
 				alloced += (size_t) (((ZSTR_LEN(text) - current + 1)/linelength + 1) * breakchar_len) + 1;
@@ -2288,10 +2286,6 @@ PHP_FUNCTION(chunk_split)
 		RETURN_NEW_STR(result);
 	}
 
-	if (!ZSTR_LEN(str)) {
-		RETURN_EMPTY_STRING();
-	}
-
 	result = php_chunk_split(ZSTR_VAL(str), ZSTR_LEN(str), end, endlen, (size_t)chunklen);
 
 	RETURN_STR(result);
diff --git a/ext/standard/strnatcmp.c b/ext/standard/strnatcmp.c
index 583cbb5dc47a..9700facdb9f1 100644
--- a/ext/standard/strnatcmp.c
+++ b/ext/standard/strnatcmp.c
@@ -55,8 +55,6 @@ compare_right(char const **a, char const *aend, char const **b, char const *bend
 				bias = +1;
 		}
 	}
-
-	return 0;
 }
 /* }}} */
 
@@ -79,8 +77,6 @@ compare_left(char const **a, char const *aend, char const **b, char const *bend)
 		 else if (**a > **b)
 			 return +1;
 	}
-
-	return 0;
 }
 /* }}} */
 
diff --git a/ext/standard/url.c b/ext/standard/url.c
index ac303027a722..461865110c41 100644
--- a/ext/standard/url.c
+++ b/ext/standard/url.c
@@ -106,7 +106,6 @@ PHPAPI php_url *php_url_parse_ex2(char const *str, size_t length, bool *has_port
 					goto parse_port;
 				} else if (s + 1 < ue && *s == '/' && *(s + 1) == '/') { /* relative-scheme URL */
 					s += 2;
-					e = 0;
 					goto parse_host;
 				} else {
 					goto just_path;
diff --git a/ext/standard/user_filters.c b/ext/standard/user_filters.c
index b699c12ed9ba..85ac8977a322 100644
--- a/ext/standard/user_filters.c
+++ b/ext/standard/user_filters.c
@@ -71,7 +71,6 @@ static ZEND_RSRC_DTOR_FUNC(php_bucket_dtor)
 	php_stream_bucket *bucket = (php_stream_bucket *)res->ptr;
 	if (bucket) {
 		php_stream_bucket_delref(bucket);
-		bucket = NULL;
 	}
 }
 
diff --git a/ext/standard/var.c b/ext/standard/var.c
index f94c1cf09584..7da08ee5347d 100644
--- a/ext/standard/var.c
+++ b/ext/standard/var.c
@@ -320,7 +320,7 @@ static void zval_object_property_dump(zend_property_info *prop_info, zval *zv, z
 
 PHPAPI void php_debug_zval_dump(zval *struc, int level) /* {{{ */
 {
-	HashTable *myht = NULL;
+	HashTable *myht;
 	zend_string *class_name;
 	zend_ulong index;
 	zend_string *key;
diff --git a/ext/standard/versioning.c b/ext/standard/versioning.c
index dc7ca71af469..c64805bd4b2c 100644
--- a/ext/standard/versioning.c
+++ b/ext/standard/versioning.c
@@ -105,13 +105,13 @@ static int compare_special_version_forms(char *form1, char *form2)
 	};
 	special_forms_t *pp;
 
-	for (pp = special_forms; pp && pp->name; pp++) {
+	for (pp = special_forms; pp->name; pp++) {
 		if (strncmp(form1, pp->name, pp->name_len) == 0) {
 			found1 = pp->order;
 			break;
 		}
 	}
-	for (pp = special_forms; pp && pp->name; pp++) {
+	for (pp = special_forms; pp->name; pp++) {
 		if (strncmp(form2, pp->name, pp->name_len) == 0) {
 			found2 = pp->order;
 			break;