Log only when WP_DEBUG == true

owark.php

@@ -20,7 +20,7 @@
   Plugin Name: owark
   Plugin URI: http://owark.org
   Description: Tired of broken links? Archive yours with owark, the Open Web Archive!
-  Version: 1.0
+  Version: 1.0.1
   Author: Eric van der Vlist
   Author URI: http://eric.van-der-vlist.com
   License: GLP2
@@ -33,12 +33,14 @@
 if (!function_exists('print_r_log')) {
 
     function print_r_log($log) {
-        $caller_strace = debug_backtrace()[1];
-        if (is_array($log) || is_object($log)) {
-            error_log($caller_strace['file'] . '/#' . $caller_strace['line'] . ':');
-            error_log(print_r($log, true));
-        } else {
-            error_log($caller_strace['file'] . '/#' . $caller_strace['line'] . ': ' . $log);
+        if (defined('WP_DEBUG') && WP_DEBUG == true) {
+            $caller_strace = debug_backtrace()[1];
+            if (is_array($log) || is_object($log)) {
+                error_log($caller_strace['file'] . '/#' . $caller_strace['line'] . ':');
+                error_log(print_r($log, true));
+            } else {
+                error_log($caller_strace['file'] . '/#' . $caller_strace['line'] . ': ' . $log);
+            }
         }
     }
 
@@ -47,10 +49,12 @@ if (!function_exists('print_r_log')) {
 if (!function_exists('log_function_call')) {
 
     function log_function_call() {
-        $caller_strace = debug_backtrace()[1];
-        error_log((isset($caller_strace['file']) ? $caller_strace['file'] : '<undefined>') . '/#' . (isset($caller_strace['line']) ? $caller_strace['line'] : '<undefined>') . ' function: ' . (isset($caller_strace['function']) ? $caller_strace['function'] : '<undefined>') . '(');
-        foreach ($caller_strace['args'] as $arg) {
-            error_log('   * ' . gettype($arg) . ': ' . print_r($arg, true));
+        if (defined('WP_DEBUG') && WP_DEBUG == true) {
+            $caller_strace = debug_backtrace()[1];
+            error_log((isset($caller_strace['file']) ? $caller_strace['file'] : '<undefined>') . '/#' . (isset($caller_strace['line']) ? $caller_strace['line'] : '<undefined>') . ' function: ' . (isset($caller_strace['function']) ? $caller_strace['function'] : '<undefined>') . '(');
+            foreach ($caller_strace['args'] as $arg) {
+                error_log('   * ' . gettype($arg) . ': ' . print_r($arg, true));
+            }
         }
     }