Fix bug GH-11246 cli/get_set_process_title

Fail to clobber_error only when the argv is a non-contiguous area
Don't increment the end_of_error if a non-contiguous area is encountered in environ

Closes GH-11247

Author: lucasnetau

NEWS

@@ -2,6 +2,10 @@ PHP                                                                        NEWS
 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 ?? ??? ????, PHP 8.1.21
 
+- CLI:
+  . Fixed bug GH-11246 (cli/get_set_process_title fails on MacOS).
+    (James Lucas)
+
 - Core:
   . Fixed build for the riscv64 architecture/GCC 12. (Daniil Gentili)
 

sapi/cli/ps_title.c

@@ -167,19 +167,20 @@ char** save_ps_args(int argc, char** argv)
             end_of_area = argv[i] + strlen(argv[i]);
         }
 
+        if (non_contiguous_area != 0) {
+            goto clobber_error;
+        }
+
         /*
          * check for contiguous environ strings following argv
          */
-        for (i = 0; (non_contiguous_area == 0) && (environ[i] != NULL); i++)
+        for (i = 0; environ[i] != NULL; i++)
         {
-            if (end_of_area + 1 != environ[i])
-                non_contiguous_area = 1;
-            end_of_area = environ[i] + strlen(environ[i]);
+            if (end_of_area + 1 == environ[i]) {
+                end_of_area = environ[i] + strlen(environ[i]);
+            }
         }
 
-        if (non_contiguous_area != 0)
-            goto clobber_error;
-
         ps_buffer = argv[0];
         ps_buffer_size = end_of_area - argv[0];