Small fix for PclZip library.

function_exists only works for create_function results, not closures.

1 files changed, 1 insertions, 1 deletions

diff --git a/libs/PclZip/pclzip.lib.php b/libs/PclZip/pclzip.lib.php
index 686aaa9f63..3ba58a4d0f 100644
--- a/libs/PclZip/pclzip.lib.php
+++ b/libs/PclZip/pclzip.lib.php
@@ -1763,7 +1763,7 @@
           $v_function_name = $p_options_list[$i+1];
 
           // ----- Check that the value is a valid existing function
-          if (!function_exists($v_function_name)) {
+          if (!is_callable($v_function_name)) {
             // ----- Error log
             PclZip::privErrorLog(PCLZIP_ERR_INVALID_OPTION_VALUE, "Function '".$v_function_name."()' is not an existing function for option '".PclZipUtilOptionText($p_options_list[$i])."'");