Switch debug backtrace based on SHOW_ERROR_BACKTRACE contstant
diff --git a/application/errors/error_php.php b/application/errors/error_php.php
index cebf917..cf6cb9f 100644
--- a/application/errors/error_php.php
+++ b/application/errors/error_php.php
@@ -6,14 +6,16 @@
 <p>Message:  <?php echo $message; ?></p>
 <p>Filename: <?php echo $filepath; ?></p>
 <p>Line Number: <?php echo $line; ?></p>
-<p>Backtrace: </p>
-<?php foreach(debug_backtrace() as $error): ?>
-<?php if(isset($error['file']) &&  ! stristr($error['file'], SYSDIR)): ?>
-	<p>
-	File: <?php echo $error['file'] ?><br />
-	Line: <?php echo $error['line'] ?><br />
-	Function: <?php echo $error['function'] ?>
-	</p>
-<? endif ?>
-<? endforeach ?></p>
+<?php if(defined('SHOW_ERROR_BACKTRACE') && SHOW_ERROR_BACKTRACE === TRUE): ?>
+	<p>Backtrace: </p>
+	<?php foreach(debug_backtrace() as $error): ?>
+	<?php if(isset($error['file']) &&  ! stristr($error['file'], SYSDIR)): ?>
+		<p>
+		File: <?php echo $error['file'] ?><br />
+		Line: <?php echo $error['line'] ?><br />
+		Function: <?php echo $error['function'] ?>
+		</p>
+	<? endif ?>
+	<? endforeach ?></p>
+<?php endif ?>
 </div>
\ No newline at end of file