Added low memory option. Fixes #45

CHANGELOG.md

@@ -6,6 +6,10 @@ Since `0.7.1` this project adheres to
 
 ## [Unreleased]
 
+### Added
+
+* Low memory option. ([#45])
+
 ### Fixed
 
 * Fixed variable names starting with `MULTPLE_`, changed to `MULTIPLE`.
@@ -293,6 +297,7 @@ e.g.
 [#55]: https://github.com/straube/multiple-domain/issues/55
 [#51]: https://github.com/straube/multiple-domain/issues/51
 [#50]: https://github.com/straube/multiple-domain/issues/50
+[#45]: https://github.com/straube/multiple-domain/issues/45
 [#44]: https://github.com/straube/multiple-domain/issues/44
 [#42]: https://github.com/straube/multiple-domain/issues/42
 [#39]: https://github.com/straube/multiple-domain/issues/39

multiple-domain/MultipleDomain.php

@@ -799,6 +799,9 @@ private function getDomainAttribute($name, $domain = null)
      */
     private function replaceDomain($domain, $content)
     {
+        if (MULTIPLE_DOMAIN_LOW_MEMORY) {
+            return $this->replaceDomainUsingLessMemory($domain, $content);
+        }
         if (array_key_exists($domain, $this->domains)) {
             $regex = '/(https?):\/\/' . preg_quote($domain, '/') . '(?![a-z0-9.\-:])/i';
             $protocol = $this->getDomainProtocol($this->domain);
@@ -825,7 +828,7 @@ private function replaceDomainUsingLessMemory($domain, $content)
             $regex = '(https?):\/\/' . preg_quote($domain, '/') . '(?![a-z0-9.\-:])';
             $protocol = $this->getDomainProtocol($this->domain);
             $replace = ($protocol === 'auto' ? '\\1' : $protocol) . '://' . $this->domain;
-            $content = preg_replace($regex, $replace, $content);
+            $content = mb_eregi_replace($regex, $replace, $content);
         }
         return $content;
     }

multiple-domain/multiple-domain.php

@@ -32,6 +32,20 @@
  */
 define('MULTIPLE_DOMAIN_PLUGIN', __FILE__);
 
+if (!defined('MULTIPLE_DOMAIN_LOW_MEMORY')) {
+
+    /**
+     * The low memory option.
+     *
+     * This option may be used where the site is throwing "allowed memory
+     * exhausted" errors. It will reduce the memory usage in domain replacements
+     * with the downside of a higher execution time.
+     *
+     * @var bool
+     */
+    define('MULTIPLE_DOMAIN_LOW_MEMORY', false);
+}
+
 
 /*
  * Register the activation method.