diff --git a/Zend/tests/ignore_repeated_errors.phpt b/Zend/tests/ignore_repeated_errors.phpt
new file mode 100644
index 00000000000..b7744e16e97
--- /dev/null
+++ b/Zend/tests/ignore_repeated_errors.phpt
@@ -0,0 +1,25 @@
+--TEST--
+Test ignore_repeated_errors ini setting
+--INI--
+ignore_repeated_errors=1
+--FILE--
+<?php
+
+// Not a repeated error due to different variables names.
+$u1 + $u2;
+
+// Repeated error.
+$u + $u;
+
+// Not a repeated error, because the line is different.
+$u + 1;
+
+?>
+--EXPECTF--
+Warning: Undefined variable $u1 in %s on line %d
+
+Warning: Undefined variable $u2 in %s on line %d
+
+Warning: Undefined variable $u in %s on line %d
+
+Warning: Undefined variable $u in %s on line %d
diff --git a/Zend/tests/ignore_repeated_source.phpt b/Zend/tests/ignore_repeated_source.phpt
new file mode 100644
index 00000000000..23389474aee
--- /dev/null
+++ b/Zend/tests/ignore_repeated_source.phpt
@@ -0,0 +1,24 @@
+--TEST--
+Test ignore_repeated_source ini setting
+--INI--
+ignore_repeated_errors=1
+ignore_repeated_source=1
+--FILE--
+<?php
+
+// Not a repeated error due to different variables names.
+$u1 + $u2;
+
+// Repeated error.
+$u + $u;
+
+// Also a repeated error, because we're ignoring the different source.
+$u + 1;
+
+?>
+--EXPECTF--
+Warning: Undefined variable $u1 in %s on line %d
+
+Warning: Undefined variable $u2 in %s on line %d
+
+Warning: Undefined variable $u in %s on line %d
diff --git a/main/main.c b/main/main.c
index f13dfa585ef..7de295fe84f 100644
--- a/main/main.c
+++ b/main/main.c
@@ -1212,7 +1212,7 @@ static ZEND_COLD void php_error_cb(int orig_type, zend_string *error_filename, c
 	if (PG(ignore_repeated_errors) && PG(last_error_message)) {
 		/* no check for PG(last_error_file) is needed since it cannot
 		 * be NULL if PG(last_error_message) is not NULL */
-		if (zend_string_equals(PG(last_error_message), message)
+		if (!zend_string_equals(PG(last_error_message), message)
 			|| (!PG(ignore_repeated_source)
 				&& ((PG(last_error_lineno) != (int)error_lineno)
 					|| !zend_string_equals(PG(last_error_file), error_filename)))) {