Commit a5ffcf3b1a1 for php.net

commit a5ffcf3b1a10a4e602135933f5fd42369a2a668a
Author: Arshid <arshidkv12@gmail.com>
Date:   Sat Mar 14 15:20:21 2026 +0530

    Use zend_string_init_fast() for single-character string creation (#21438)

diff --git a/Zend/Optimizer/sccp.c b/Zend/Optimizer/sccp.c
index a297f4f0e4a..60afe3165f7 100644
--- a/Zend/Optimizer/sccp.c
+++ b/Zend/Optimizer/sccp.c
@@ -402,7 +402,7 @@ static inline zend_result ct_eval_fetch_dim(zval *result, zval *op1, zval *op2,
 			return FAILURE;
 		}
 		if (index >= 0 && index < Z_STRLEN_P(op1)) {
-			ZVAL_STR(result, zend_string_init(&Z_STRVAL_P(op1)[index], 1, 0));
+			ZVAL_CHAR(result, Z_STRVAL_P(op1)[index]);
 			return SUCCESS;
 		}
 	}