diff --git a/ext/standard/basic_functions.stub.php b/ext/standard/basic_functions.stub.php
index 0c1c1ee380de5..2793831d00c36 100755
--- a/ext/standard/basic_functions.stub.php
+++ b/ext/standard/basic_functions.stub.php
@@ -608,6 +608,10 @@ function strrchr(string $haystack, string $needle): string|false {}
 
 function str_contains(string $haystack, string $needle): bool {}
 
+function str_starts_with(string $haystack, string $needle): bool {}
+
+function str_ends_with(string $haystack, string $needle): bool {}
+
 function chunk_split(string $str, int $chunklen = 76, string $ending = "\r\n"): string {}
 
 function substr(string $str, int $start, ?int $length = null): string|false {}
diff --git a/ext/standard/basic_functions_arginfo.h b/ext/standard/basic_functions_arginfo.h
index 7e0fbe84dcebe..ec5e94aa8200d 100755
--- a/ext/standard/basic_functions_arginfo.h
+++ b/ext/standard/basic_functions_arginfo.h
@@ -923,6 +923,16 @@ ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_str_contains, 0, 2, _IS_BOOL, 0)
 	ZEND_ARG_TYPE_INFO(0, needle, IS_STRING, 0)
 ZEND_END_ARG_INFO()
 
+ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_str_starts_with, 0, 2, _IS_BOOL, 0)
+	ZEND_ARG_TYPE_INFO(0, haystack, IS_STRING, 0)
+	ZEND_ARG_TYPE_INFO(0, needle, IS_STRING, 0)
+ZEND_END_ARG_INFO()
+
+ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_str_ends_with, 0, 2, _IS_BOOL, 0)
+	ZEND_ARG_TYPE_INFO(0, haystack, IS_STRING, 0)
+	ZEND_ARG_TYPE_INFO(0, needle, IS_STRING, 0)
+ZEND_END_ARG_INFO()
+
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_chunk_split, 0, 1, IS_STRING, 0)
 	ZEND_ARG_TYPE_INFO(0, str, IS_STRING, 0)
 	ZEND_ARG_TYPE_INFO(0, chunklen, IS_LONG, 0)
@@ -2496,6 +2506,8 @@ ZEND_FUNCTION(strrpos);
 ZEND_FUNCTION(strripos);
 ZEND_FUNCTION(strrchr);
 ZEND_FUNCTION(str_contains);
+ZEND_FUNCTION(str_starts_with);
+ZEND_FUNCTION(str_ends_with);
 ZEND_FUNCTION(chunk_split);
 ZEND_FUNCTION(substr);
 ZEND_FUNCTION(substr_replace);
@@ -3128,6 +3140,8 @@ static const zend_function_entry ext_functions[] = {
 	ZEND_FE(strripos, arginfo_strripos)
 	ZEND_FE(strrchr, arginfo_strrchr)
 	ZEND_FE(str_contains, arginfo_str_contains)
+	ZEND_FE(str_starts_with, arginfo_str_starts_with)
+	ZEND_FE(str_ends_with, arginfo_str_ends_with)
 	ZEND_FE(chunk_split, arginfo_chunk_split)
 	ZEND_FE(substr, arginfo_substr)
 	ZEND_FE(substr_replace, arginfo_substr_replace)
diff --git a/ext/standard/string.c b/ext/standard/string.c
index a22992aa81737..e92d981cf72ac 100644
--- a/ext/standard/string.c
+++ b/ext/standard/string.c
@@ -1866,6 +1866,44 @@ PHP_FUNCTION(str_contains)
 }
 /* }}} */
 
+/* {{{ proto bool str_starts_with(string haystack, string needle)
+   Checks if haystack starts with needle */
+PHP_FUNCTION(str_starts_with) 
+{
+	zend_string *haystack, *needle;
+
+	ZEND_PARSE_PARAMETERS_START(2, 2)
+		Z_PARAM_STR(haystack)
+		Z_PARAM_STR(needle)
+	ZEND_PARSE_PARAMETERS_END();
+
+	if (ZSTR_LEN(needle) > ZSTR_LEN(haystack)) {
+		RETURN_FALSE;
+	}
+
+	RETURN_BOOL(memcmp(ZSTR_VAL(haystack), ZSTR_VAL(needle), ZSTR_LEN(needle)) == 0);
+}
+
+/* {{{ proto bool str_ends_with(string haystack, string needle)
+   Checks if haystack ends with needle */
+PHP_FUNCTION(str_ends_with) 
+{
+	zend_string *haystack, *needle;
+	int k;
+
+	ZEND_PARSE_PARAMETERS_START(2, 2)
+		Z_PARAM_STR(haystack)
+		Z_PARAM_STR(needle)
+	ZEND_PARSE_PARAMETERS_END();
+
+	if (ZSTR_LEN(needle) > ZSTR_LEN(haystack)) {
+		RETURN_FALSE;
+	}
+
+	k = ZSTR_LEN(haystack) - ZSTR_LEN(needle);
+	RETURN_BOOL(memcmp(&(ZSTR_VAL(haystack))[k], ZSTR_VAL(needle), ZSTR_LEN(needle)) == 0);
+}
+
 /* {{{ proto string strchr(string haystack, string needle)
    An alias for strstr */
 /* }}} */
diff --git a/ext/standard/tests/strings/str_ends_with.phpt b/ext/standard/tests/strings/str_ends_with.phpt
new file mode 100644
index 0000000000000..fd478f57cb0e7
--- /dev/null
+++ b/ext/standard/tests/strings/str_ends_with.phpt
@@ -0,0 +1,45 @@
+--TEST--
+str_ends_with() function - unit tests for str_ends_with()
+--FILE--
+<?php
+/* Prototype: bool str_ends_with (string $haystack, string $needle);
+   Description: Determine if $haystack ends with $needle
+*/
+$testStr = "beginningMiddleEnd";
+var_dump(str_ends_with($testStr, "End"));
+var_dump(str_ends_with($testStr, "end"));
+var_dump(str_ends_with($testStr, "en"));
+var_dump(str_ends_with($testStr, $testStr));
+var_dump(str_ends_with($testStr, $testStr.$testStr));
+var_dump(str_ends_with($testStr, ""));
+var_dump(str_ends_with("", ""));
+var_dump(str_ends_with("", " "));
+var_dump(str_ends_with($testStr, "\x00"));
+var_dump(str_ends_with("\x00", ""));
+var_dump(str_ends_with("\x00", "\x00"));
+var_dump(str_ends_with("a\x00", "\x00"));
+var_dump(str_ends_with("ab\x00c", "b\x00c"));
+var_dump(str_ends_with("a\x00b", "d\x00b"));
+var_dump(str_ends_with("a\x00b", "a\x00z"));
+var_dump(str_ends_with("a", "\x00a"));
+var_dump(str_ends_with("a", "a\x00"));
+?>
+--EXPECT--
+bool(true)
+bool(false)
+bool(false)
+bool(true)
+bool(false)
+bool(true)
+bool(true)
+bool(false)
+bool(false)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(false)
+bool(false)
+bool(false)
+bool(false)
+
diff --git a/ext/standard/tests/strings/str_starts_with.phpt b/ext/standard/tests/strings/str_starts_with.phpt
new file mode 100644
index 0000000000000..a90c12a80f971
--- /dev/null
+++ b/ext/standard/tests/strings/str_starts_with.phpt
@@ -0,0 +1,45 @@
+--TEST--
+str_starts_with() function - unit tests for str_starts_with()
+--FILE--
+<?php
+/* Prototype: bool str_starts_with (string $haystack, string $needle);
+   Description: Determine if $haystack begins with $needle
+*/
+$testStr = "beginningMiddleEnd";
+var_dump(str_starts_with($testStr, "beginning"));
+var_dump(str_starts_with($testStr, "Beginning"));
+var_dump(str_starts_with($testStr, "eginning"));
+var_dump(str_starts_with($testStr, $testStr));
+var_dump(str_starts_with($testStr, $testStr.$testStr));
+var_dump(str_starts_with($testStr, ""));
+var_dump(str_starts_with("", ""));
+var_dump(str_starts_with("", " "));
+var_dump(str_starts_with($testStr, "\x00"));
+var_dump(str_starts_with("\x00", ""));
+var_dump(str_starts_with("\x00", "\x00"));
+var_dump(str_starts_with("\x00a", "\x00"));
+var_dump(str_starts_with("a\x00bc", "a\x00b"));
+var_dump(str_starts_with("a\x00b", "a\x00d"));
+var_dump(str_starts_with("a\x00b", "z\x00b"));
+var_dump(str_starts_with("a", "a\x00"));
+var_dump(str_starts_with("a", "\x00a"));
+?>
+--EXPECT--
+bool(true)
+bool(false)
+bool(false)
+bool(true)
+bool(false)
+bool(true)
+bool(true)
+bool(false)
+bool(false)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(false)
+bool(false)
+bool(false)
+bool(false)
+