Fix allocation loop in zend_shared_alloc_startup()

The break is outside the if, so if it succeeds or not this will always
stop after the first loop iteration instead of trying more allocators if
the first one fails.

Closes GH-11306.

NEWS

@@ -2,6 +2,9 @@ PHP                                                                        NEWS
 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 ?? ??? ????, PHP 8.1.21
 
+- Opcache:
+  . Fix allocation loop in zend_shared_alloc_startup(). (nielsdos)
+
 - Standard:
   . Fix access on NULL pointer in array_merge_recursive(). (ilutov)
   . Fix exception handling in array_multisort(). (ilutov)

ext/opcache/zend_shared_alloc.c

@@ -179,8 +179,8 @@ int zend_shared_alloc_startup(size_t requested_size, size_t reserved_size)
 				res = zend_shared_alloc_try(he, requested_size, &ZSMMG(shared_segments), &ZSMMG(shared_segments_count), &error_in);
 				if (res) {
 					/* this model works! */
+					break;
 				}
-				break;
 			}
 		}
 	}