Merge branch 'PHP-8.1'

* PHP-8.1:
  Fix GH-7980: Unexpected result for iconv_mime_decode

Author: cmb69

ext/iconv/iconv.c

@@ -1578,6 +1578,9 @@ static php_iconv_err_t _php_iconv_mime_decode(smart_str *pretval, const char *st
 						}
 
 						err = _php_iconv_appendl(pretval, ZSTR_VAL(decoded_text), ZSTR_LEN(decoded_text), cd);
+						if (err == PHP_ICONV_ERR_SUCCESS) {
+							err = _php_iconv_appendl(pretval, NULL, 0, cd);
+						}
 						zend_string_release_ex(decoded_text, 0);
 
 						if (err != PHP_ICONV_ERR_SUCCESS) {
@@ -1718,13 +1721,6 @@ static php_iconv_err_t _php_iconv_mime_decode(smart_str *pretval, const char *st
 		*next_pos = p1;
 	}
 
-	if (cd != (iconv_t)(-1)) {
-		_php_iconv_appendl(pretval, NULL, 0, cd);
-	}
-	if (cd_pl != (iconv_t)(-1)) {
-		_php_iconv_appendl(pretval, NULL, 0, cd_pl);
-	}
-
 	smart_str_0(pretval);
 out:
 	if (cd != (iconv_t)(-1)) {

ext/iconv/tests/gh7980.phpt

@@ -0,0 +1,11 @@
+--TEST--
+Bug GH-7980 (Unexpected result for iconv_mime_decode)
+--EXTENSIONS--
+iconv
+--FILE--
+<?php
+$subject = '=?windows-1258?Q?DSI_Charg=E9_de_Formation_Jean_Dupont?= <[email protected]>';
+var_dump(iconv_mime_decode($subject, ICONV_MIME_DECODE_STRICT, 'UTF-8'));
+?>
+--EXPECT--
+string(57) "DSI Chargé de Formation Jean Dupont <[email protected]>"