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-rw-r--r--src/SemanticScuttle/Service/Tag.php3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/SemanticScuttle/Service/Tag.php b/src/SemanticScuttle/Service/Tag.php
index bd6bf70..17acae7 100644
--- a/src/SemanticScuttle/Service/Tag.php
+++ b/src/SemanticScuttle/Service/Tag.php
@@ -137,7 +137,8 @@ class SemanticScuttle_Service_Tag extends SemanticScuttle_DbService
/* normalize the input tags which could be a string or an array*/
function normalize($tags) {
//clean tags from strange characters
- $tags = str_replace(array('"', '\'', '/'), "_", $tags);
+ //2023-12-20 add IF condition to avoid 'Deprecated' warning
+ if (!is_null($tags)) $tags = str_replace(array('"', '\'', '/'), "_", $tags);
//normalize
if(!is_array($tags)) {