diff --git a/Zend/zend_compile.c b/Zend/zend_compile.c
index 5d32914a452..82ec830387b 100644
--- a/Zend/zend_compile.c
+++ b/Zend/zend_compile.c
@@ -6237,7 +6237,7 @@ static zend_bool zend_try_ct_eval_magic_const(zval *zv, zend_ast *ast) /* {{{ */
 }
 /* }}} */
 
-static inline zend_bool zend_binary_op_produces_numeric_string_error(uint32_t opcode, zval *op1, zval *op2) /* {{{ */
+ZEND_API zend_bool zend_binary_op_produces_numeric_string_error(uint32_t opcode, zval *op1, zval *op2) /* {{{ */
 {
 	if (!(opcode == ZEND_ADD || opcode == ZEND_SUB || opcode == ZEND_MUL || opcode == ZEND_DIV
 		|| opcode == ZEND_POW || opcode == ZEND_MOD || opcode == ZEND_SL || opcode == ZEND_SR
diff --git a/Zend/zend_compile.h b/Zend/zend_compile.h
index f3dc8081b8a..b3ba352df88 100644
--- a/Zend/zend_compile.h
+++ b/Zend/zend_compile.h
@@ -1023,6 +1023,8 @@ END_EXTERN_C()
 /* The default value for CG(compiler_options) during eval() */
 #define ZEND_COMPILE_DEFAULT_FOR_EVAL			0
 
+ZEND_API zend_bool zend_binary_op_produces_numeric_string_error(uint32_t opcode, zval *op1, zval *op2);
+
 #endif /* ZEND_COMPILE_H */
 
 /*
diff --git a/ext/opcache/Optimizer/block_pass.c b/ext/opcache/Optimizer/block_pass.c
index 52a440fba07..0ecb57e2b90 100644
--- a/ext/opcache/Optimizer/block_pass.c
+++ b/ext/opcache/Optimizer/block_pass.c
@@ -683,9 +683,14 @@ optimize_constant_binary_op:
 		            } else if ((opline->opcode == ZEND_SL || opline->opcode == ZEND_SR) &&
 		                zval_get_long(&ZEND_OP2_LITERAL(opline)) < 0) {
 						SET_VAR_SOURCE(opline);
+		                opline++;
+						continue;
+					} else if (zend_binary_op_produces_numeric_string_error(opline->opcode, &ZEND_OP1_LITERAL(opline), &ZEND_OP2_LITERAL(opline))) {
+						SET_VAR_SOURCE(opline);
 		                opline++;
 						continue;
 					}
+					printf("%d\n", opline->opcode);
 					er = EG(error_reporting);
 					EG(error_reporting) = 0;
 					if (binary_op(&result, &ZEND_OP1_LITERAL(opline), &ZEND_OP2_LITERAL(opline)) == SUCCESS) {
diff --git a/ext/opcache/Optimizer/pass1_5.c b/ext/opcache/Optimizer/pass1_5.c
index ae31504f4c0..71f879e958a 100644
--- a/ext/opcache/Optimizer/pass1_5.c
+++ b/ext/opcache/Optimizer/pass1_5.c
@@ -84,6 +84,9 @@ void zend_optimizer_pass1(zend_op_array *op_array, zend_optimizer_ctx *ctx)
 					zval_get_long(&ZEND_OP2_LITERAL(opline)) < 0) {
 					/* shift by negative number */
 					break;
+				} else if (zend_binary_op_produces_numeric_string_error(opline->opcode, &ZEND_OP1_LITERAL(opline), &ZEND_OP2_LITERAL(opline))) {
+					/* produces numeric string E_NOTICE/E_WARNING */
+					break;
 				}
 				er = EG(error_reporting);
 				EG(error_reporting) = 0;