Fixed a case sensitive string replacement, simplified redundant string replacement

1 files changed, 2 insertions, 2 deletions

diff --git a/system/libraries/Input.php b/system/libraries/Input.php
index 407990370..e7bf72779 100644
--- a/system/libraries/Input.php
+++ b/system/libraries/Input.php
@@ -656,11 +656,11 @@ class CI_Input {
 		{
 			// Images have a tendency to have the PHP short opening and closing tags every so often
 			// so we skip those and only do the long opening tags.
-			$str = str_replace(array('<?php', '<?PHP'),  array('&lt;?php', '&lt;?PHP'), $str);
+			$str = preg_replace('/<\?(php)/i', "&lt;?\\1", $str);
 		}
 		else
 		{
-			$str = str_replace(array('<?php', '<?PHP', '<?', '?'.'>'),  array('&lt;?php', '&lt;?PHP', '&lt;?', '?&gt;'), $str);
+			$str = str_replace(array('<?', '?'.'>'),  array('&lt;?', '?&gt;'), $str);
 		}
 
 		/*