Update grammar and clarify wording in couple places

On line 512, I clarified the sentence which uses effect, previously the sentence was awkward.
On line 656, the wrong word is used, I changed affect to effect.

php.ini-development

@@ -509,7 +509,7 @@ ignore_repeated_errors = Off
 ignore_repeated_source = Off
 
 ; If this parameter is set to Off, then memory leaks will not be shown (on
-; stdout or in the log). This has only effect in a debug compile, and if
+; stdout or in the log). This is only effective in a debug compile, and if
 ; error reporting includes E_WARNING in the allowed list
 ; http://php.net/report-memleaks
 report_memleaks = On
@@ -663,7 +663,7 @@ register_argc_argv = Off
 ; first used (Just In Time) instead of when the script starts. If these
 ; variables are not used within a script, having this directive on will result
 ; in a performance gain. The PHP directive register_argc_argv must be disabled
-; for this directive to have any affect.
+; for this directive to have any effect.
 ; http://php.net/auto-globals-jit
 auto_globals_jit = On
 

php.ini-production

@@ -514,7 +514,7 @@ ignore_repeated_errors = Off
 ignore_repeated_source = Off
 
 ; If this parameter is set to Off, then memory leaks will not be shown (on
-; stdout or in the log). This has only effect in a debug compile, and if
+; stdout or in the log). This is only effective in a debug compile, and if
 ; error reporting includes E_WARNING in the allowed list
 ; http://php.net/report-memleaks
 report_memleaks = On
@@ -670,7 +670,7 @@ register_argc_argv = Off
 ; first used (Just In Time) instead of when the script starts. If these
 ; variables are not used within a script, having this directive on will result
 ; in a performance gain. The PHP directive register_argc_argv must be disabled
-; for this directive to have any affect.
+; for this directive to have any effect.
 ; http://php.net/auto-globals-jit
 auto_globals_jit = On