Issue #1295756 by moshe weitzman | Alan Evans: Drush ignores php item…

… in site aliases which specifies the php binary to use.

examples/example.aliases.drushrc.php

@@ -189,7 +189,7 @@
  *     '%files': Path to 'files' directory.  This will be looked up if not specified.
  *     '%root': A reference to the Drupal root defined in the 'root' item
  *       in the site alias record.
- * - 'php': path to custom php interpreter, defaults to /usr/bin/php
+ * - 'php': path to custom php interpreter. Windows support limited to Cygwin.
  * - 'php-options': commandline options for php interpreter, you may
  *   want to set this to '-d error_reporting="E_ALL^E_DEPRECATED"'
  * - 'variables' : An array of name/value pairs which override Drupal variables/config.

includes/environment.inc

@@ -616,9 +616,10 @@ function drush_build_drush_command($drush_path = NULL, $php = NULL, $os = NULL,
       $additional_options .= ' --php-options=' . drush_escapeshellarg($php_options, $os);
     }
   }
-  else {
-    $php = '';
+  elseif ($php && drush_has_bash($os)) {
+    $php = 'DRUSH_PHP=' . drush_escapeshellarg($php, $os) . ' ';
   }
+
   return $php . drush_escapeshellarg($drush_path, $os) . $additional_options;
 }