diff --git a/Zend/zend_verify_type_inference.h b/Zend/zend_verify_type_inference.h
index 0add01933495f..8e9cbcbc181f1 100644
--- a/Zend/zend_verify_type_inference.h
+++ b/Zend/zend_verify_type_inference.h
@@ -156,7 +156,7 @@ static void zend_verify_inference_def(zend_execute_data *execute_data, const zen
 	}
 	if (opline->op1_def_type
 	 && (opline->op1_type & (IS_TMP_VAR|IS_VAR|IS_CV))
-	 // array is actually changed by the the following instruction(s)
+	 // array is actually changed by the following instruction(s)
 	 && opline->opcode != ZEND_FETCH_DIM_W
 	 && opline->opcode != ZEND_FETCH_DIM_RW
 	 && opline->opcode != ZEND_FETCH_DIM_FUNC_ARG
diff --git a/docs/source/miscellaneous/writing-tests.rst b/docs/source/miscellaneous/writing-tests.rst
index 4c46dad638b6c..8c4e0535763cc 100644
--- a/docs/source/miscellaneous/writing-tests.rst
+++ b/docs/source/miscellaneous/writing-tests.rst
@@ -1389,7 +1389,7 @@ Example 1 (full): :ref:`sample002.phpt`
 ``--EXPECT_EXTERNAL--``
 -----------------------
 
-**Description:** Similar to to ``--EXPECT--`` section, but just stating a filename where to load the
+**Description:** Similar to ``--EXPECT--`` section, but just stating a filename where to load the
 expected output from.
 
 **Required:** One of the ``EXPECT`` type sections is required.
@@ -1526,7 +1526,7 @@ Example 2 (full): :ref:`sample020.phpt`
 ``--EXPECTF_EXTERNAL--``
 ------------------------
 
-**Description:** Similar to to ``--EXPECTF--`` section, but like the ``--EXPECT_EXTERNAL--`` section
+**Description:** Similar to ``--EXPECTF--`` section, but like the ``--EXPECT_EXTERNAL--`` section
 just stating a filename where to load the expected output from.
 
 **Required:** One of the ``EXPECT`` type sections is required.
@@ -1607,7 +1607,7 @@ Example 3 (snippet):
 ``--EXPECTREGEX_EXTERNAL--``
 ----------------------------
 
-**Description:** Similar to to ``--EXPECTREGEX--`` section, but like the ``--EXPECT_EXTERNAL--``
+**Description:** Similar to ``--EXPECTREGEX--`` section, but like the ``--EXPECT_EXTERNAL--``
 section just stating a filename where to load the expected output from.
 
 **Required:** One of the ``EXPECT`` type sections is required.
diff --git a/ext/fileinfo/tests/magic b/ext/fileinfo/tests/magic
index e8ad0f0ce7843..c8783aea05c71 100644
--- a/ext/fileinfo/tests/magic
+++ b/ext/fileinfo/tests/magic
@@ -39944,7 +39944,7 @@
 # look for archive member RunTime.xml like in Microsoft.Windows.Cosa.Desktop.Client.ppkg
 >>>156	search/68233/s		RunTime.xml	\bWindows provisioning package)
 !:ext	ppkg
-# if is is not a Windows provisioning package, then it is a WIM
+# if it is not a Windows provisioning package, then it is a WIM
 >>>156	default			x		\bWIM) image
 # second disk image part created by Microsoft's RecoveryDrive.exe has name Reconstruct.WIM2
 !:ext	wim/wim2
diff --git "a/ext/fileinfo/tests/magic\347\247\201\343\201\257\343\202\254\343\203\251\343\202\271\343\202\222\351\243\237\343\201\271\343\202\211\343\202\214\343\201\276\343\201\231" "b/ext/fileinfo/tests/magic\347\247\201\343\201\257\343\202\254\343\203\251\343\202\271\343\202\222\351\243\237\343\201\271\343\202\211\343\202\214\343\201\276\343\201\231"
index e8ad0f0ce7843..c8783aea05c71 100644
--- "a/ext/fileinfo/tests/magic\347\247\201\343\201\257\343\202\254\343\203\251\343\202\271\343\202\222\351\243\237\343\201\271\343\202\211\343\202\214\343\201\276\343\201\231"
+++ "b/ext/fileinfo/tests/magic\347\247\201\343\201\257\343\202\254\343\203\251\343\202\271\343\202\222\351\243\237\343\201\271\343\202\211\343\202\214\343\201\276\343\201\231"
@@ -39944,7 +39944,7 @@
 # look for archive member RunTime.xml like in Microsoft.Windows.Cosa.Desktop.Client.ppkg
 >>>156	search/68233/s		RunTime.xml	\bWindows provisioning package)
 !:ext	ppkg
-# if is is not a Windows provisioning package, then it is a WIM
+# if it is not a Windows provisioning package, then it is a WIM
 >>>156	default			x		\bWIM) image
 # second disk image part created by Microsoft's RecoveryDrive.exe has name Reconstruct.WIM2
 !:ext	wim/wim2
diff --git a/ext/gd/gd.c b/ext/gd/gd.c
index 60b2ad65bf65e..135cff7fcc639 100644
--- a/ext/gd/gd.c
+++ b/ext/gd/gd.c
@@ -4309,7 +4309,7 @@ PHP_FUNCTION(imageresolution)
  *
  * Stream Handling
  * Formerly contained within ext/gd/gd_ctx.c and included
- * at the the top of this file
+ * at the top of this file
  *
  ********************************************************/
 
diff --git a/ext/random/tests/03_randomizer/methods/getBytesFromString_fast_path.phpt b/ext/random/tests/03_randomizer/methods/getBytesFromString_fast_path.phpt
index 84c8ec611db80..7d7b98f1b27a9 100644
--- a/ext/random/tests/03_randomizer/methods/getBytesFromString_fast_path.phpt
+++ b/ext/random/tests/03_randomizer/methods/getBytesFromString_fast_path.phpt
@@ -41,7 +41,7 @@ for ($i = 1; $i <= strlen($allBytes); $i *= 2) {
     }
 
     // We also expect that each possible value appears at least once, if
-    // not is is very likely that some bits were erroneously masked away.
+    // not it is very likely that some bits were erroneously masked away.
     var_dump(count($count));
 
     echo PHP_EOL;
@@ -67,7 +67,7 @@ for ($i = 1; ($i + 1) <= strlen($allBytes); $i *= 2) {
     }
 
     // We expect that each possible value appears at least once, if
-    // not is is very likely that some bits were erroneously masked away.
+    // not it is very likely that some bits were erroneously masked away.
     var_dump(count($count));
 
     echo PHP_EOL;
@@ -90,7 +90,7 @@ for ($j = 0; $j < strlen($result); $j++) {
 }
 
 // We also expect that each possible value appears at least once, if
-// not is is very likely that some bits were erroneously masked away.
+// not it is very likely that some bits were erroneously masked away.
 var_dump(count($count));
 
 ?>
diff --git a/sapi/fpm/fpm/events/kqueue.c b/sapi/fpm/fpm/events/kqueue.c
index 09f5da12799be..21939d3414182 100644
--- a/sapi/fpm/fpm/events/kqueue.c
+++ b/sapi/fpm/fpm/events/kqueue.c
@@ -150,7 +150,7 @@ static int fpm_event_kqueue_wait(struct fpm_event_queue_s *queue, unsigned long
 /* }}} */
 
 /*
- * Add a FD to to kevent queue
+ * Add a FD to kevent queue
  */
 static int fpm_event_kqueue_add(struct fpm_event_s *ev) /* {{{ */
 {
diff --git a/scripts/dev/bless_tests.php b/scripts/dev/bless_tests.php
index 58baeac402462..7493a504729c4 100755
--- a/scripts/dev/bless_tests.php
+++ b/scripts/dev/bless_tests.php
@@ -124,7 +124,7 @@ function insertOutput(string $phpt, string $out): string {
 }
 
 /**
- * Implementation of the the Myers diff algorithm.
+ * Implementation of the Myers diff algorithm.
  *
  * Myers, Eugene W. "An O (ND) difference algorithm and its variations."
  * Algorithmica 1.1 (1986): 251-266.
diff --git a/win32/sendmail.c b/win32/sendmail.c
index 394676f30316d..f267d1fae85ab 100644
--- a/win32/sendmail.c
+++ b/win32/sendmail.c
@@ -121,7 +121,7 @@ static int Ack(char **server_response);
 static unsigned long GetAddr(LPSTR szHost);
 static int FormatEmailAddress(char* Buf, char* EmailAddress, char* FormatString);
 
-/* This function is meant to unify the headers passed to to mail()
+/* This function is meant to unify the headers passed to mail()
  * This means, use PCRE to transform single occurrences of \n or \r in \r\n
  * As a second step we also eliminate all \r\n occurrences which are:
  * 1) At the start of the header