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-rw-r--r--ext/pcre/tests/bug79188.phpt13
1 files changed, 13 insertions, 0 deletions
diff --git a/ext/pcre/tests/bug79188.phpt b/ext/pcre/tests/bug79188.phpt
new file mode 100644
index 0000000000..875aad7b98
--- /dev/null
+++ b/ext/pcre/tests/bug79188.phpt
@@ -0,0 +1,13 @@
+--TEST--
+Bug #79188: Memory corruption in preg_replace/preg_replace_callback and unicode
+--FILE--
+<?php
+
+var_dump(preg_replace("//u", "", "a" . str_repeat("\u{1f612}", 10)));
+var_dump(preg_replace_callback(
+ "//u", function() { return ""; }, "a" . str_repeat("\u{1f612}", 10)));
+
+?>
+--EXPECT--
+string(41) "a😒😒😒😒😒😒😒😒😒😒"
+string(41) "a😒😒😒😒😒😒😒😒😒😒"